Max Tegmark's Bibliography
Please click on any paper that you want more information about.
Most of these papers are rather technical, so if you're not too into
equations and science jargon, you might find these
popular articles
more fun. There's a brief overview of all these articles and how they fit together
at the bottom of this page.
If you, in the Google spirit, care about what other people care about, here's my
citation summary.
Cosmology
publications
-
Late reionization by supernova-driven winds
M Tegmark, J Silk & A Evrard 1993, ApJ, 417, 54-62
-
On the inevitability of reionization: implications
for cosmic microwave background fluctuations
M Tegmark, J Silk & A Blanchard 1994, ApJ, 420, 484-496
-
Did the universe recombine? New spectral constraints on
reheating
M Tegmark & J Silk 1994, ApJ, 423, 529-533
-
Power spectrum independent constraints on cosmological
models
M Tegmark, E Bunn & W Hu 1994, ApJ, 434, 1-11
-
New Constraints on Reionization from the Compton y-parameter
M Tegmark & J Silk 1994, In Present and Future of the cosmic
microwave background radiation, In Present and Future of the cosmic
microwave background radiation, Eds. L. Cayon, E. Martinez-Gonzales
& J. Sanz, Springer Verlag Gonzales & J. Sanz, Springer Verlag
-
Probes of the early universe
M Tegmark, Ph.D. thesis, U. C. Berkeley, Dept. of Physics, May 1994
-
Reconstructing cosmic fields from redshift data - an explicit solution
for the linear regime
M Tegmark 1995, Nucl. Phys. B, S43, 295-298
-
Reionization in an open CDM universe: implications
for cosmic microwave background fluctuations
M Tegmark & J Silk 1995, ApJ, 441, 458-464
-
Estimating microwave power spectra
M Tegmark 1995, Ann. N.Y. Acad. Sci., 759, 684-687
-
Real-space cosmic fields from redshift-space distributions:
a Green function approach
M Tegmark & B Bromley 1995, ApJ, 453, 533-540
-
A brute-force analysis of the COBE data
M Tegmark & E Bunn 1995, ApJ, 455, 1-6
-
A method for extracting maximum resolution power
spectra from microwave sky maps
M Tegmark 1996, MNRAS, 280, 299-308
-
A method for extracting maximum resolution power spectra
from galaxy surveys
M Tegmark 1995, ApJ, 455, 429-438
-
Making the most of galaxy surveys: an optimal method for power spectrum
estimation
M Tegmark 1995, in proceedings of Max-Planck-Gesellschaft 1996 Ringberg
Workshop
-
Estimating power spectra from 3D galaxy surveys
M Tegmark 1995, in `Proceedings of the XXXth Rencontres de Moriond:
Clustering in the universe, Eds. S Maurogordato et al, p49
-
Using the kinematic Sunyaev-Zeldovich effect to determine
the peculiar velocities of clusters of galaxies
M Haehnelt & M Tegmark 1996, MNRAS, 279, 545-556
-
A method for subtracting foregrounds from multi-frequency
CMB sky maps
M Tegmark & G P Efstathiou 1996, MNRAS, 281, 1297-1314
-
Spherical harmonic analysis of the angular distribution of GRBs
M. Tegmark, D. H. Hartmann, M. S. Briggs & C. A. Meegan 1996, in
Proc. 3rd Huntsville workshop on Gamma Ray Bursts.
-
The angular power spectrum of BATSE 3B gamma-ray
bursts
M Tegmark, D H Hartmann, M S Briggs & C A Meegan 1996, ApJ,
468, 214-224
-
Improved limits on gamma ray burst repetition
M Tegmark, D H Hartmann, M S Briggs, Jon Hakkila & C A Meegan 1996,
ApJ, 466, 757-763
-
Doppler peaks and all that: CMB anisotropies and
what they can tell us
M Tegmark 1996, lecture notes in Proc. Enrico Fermi, Course
CXXXII, Varenna
-
The angular power spectrum of the 4 year COBE data
M Tegmark 1996, ApJ Lett, 464, L35-L38
-
How small were the first cosmological objects?
M Tegmark, J Silk, M J Rees, A Blanchard, T Abel & F Palla 1997,
ApJ, 474, 1-12
-
Karhunen-Loeve eigenvalue problems in cosmology:
how to tackle large data sets?
M Tegmark, A N Taylor, & A F Heavens 1997, ApJ, 480,
22-35
-
An improved method for pixelizing CMB sky maps
M Tegmark 1997, in Microwave Background Anisotropies, Eds. F
Bouchet et al (Editions Frontieres), 475-480
-
An icosahedron-based method for pixelizing the
celestial sphere
M Tegmark 1996, ApJ Lett, 470, L81-L84
-
A high-resolution map of the cosmic microwave background
around the north celestial pole
M Tegmark, A de Oliveira-Costa, M J Devlin, C B Netterfield, L Page
& E J Wollack 1997, ApJ Lett, 474, L77-L80
-
Is lensing of point sources a problem for future
CMB experiments?
M Tegmark & J V Villumsen 1997, MNRAS, 289, 169-174
-
Studies
of CMB structure at Dec=+40. II: Analysis and cosmological interpretation
S. Hancock, C. M. Gutierrez, R. D. Davies, A. N. Lasenby, G. Rocha,
R. Rebolo, R. A. Watson & M. Tegmark 1997, MNRAS, 289,
505-514
-
How to make CMB maps without losing information
M Tegmark 1997, ApJ Lett, 480, L87-L90
-
How to measure CMB power spectra without losing information
M Tegmark 1997, Phys. Rev. D, 55, 5895-5907
-
Uncorrelated measurements of the CMB power spectrum
M Tegmark & A J S Hamilton 1998, astro-ph/9702019, in proccedings
of the 18th Texas Symposium on Relativistics Astrophysics & Cosmology,
eds A V Olinto, J A Frieman & D N Schramm, p270-272 (World Scientific)
-
Forecasting cosmic parameter errors from microwave
background anisotropy experiments
J R Bond, G Efstathiou & M Tegmark 1997, MNRAS, 291,
L33-L41
-
Analyzing redshift surveys to measure the power spectrum on large scales
M Tegmark 1998, in Ringberg Workshop on Large-Scale Structure,
ed. D. Hamilton (Kluwer, Amsterdam), preprint astro-ph/9708021
-
CMB mapping experiments: a designer's guide
M Tegmark 1997, Phys. Rev. D, 56, 4514-4529
-
Cosmological parameter estimation from the CMB
A Taylor, A Heavens, B Ballinger & M Tegmark 1997, in Proceedings
of PPEUC97, Ed A Lasenby (Cambridge Univ. Press, Cambridge)
-
Measuring cosmological parameters with galaxy
surveys
M Tegmark 1997, Phys. Rev. Lett., 79, 3806-9
-
Measuring the galaxy power spectrum with future
redshift surveys
M Tegmark, A Hamilton, M Strauss, M Vogeley & A Szalay 1998, ApJ,
499, 555-576
-
Why is the CMB fluctuation level 10-5?
M Tegmark & M Rees 1998, ApJ, 499, 526-532
-
Cosmic microwave background maps from the HACME
experiment
M Tegmark, A de Oliveira-Costa, J Staren, P Meinhold, P Lubin, J Childers,
N Figueiredo, T Gaier, M Lim, M Seiffert, T Villela & C A Wuensche 2000,
ApJ, 541, 535-541
-
Removing real-world foregrounds from CMB maps
M Tegmark 1998, ApJ, 502, 1-6
-
Weighing
neutrinos with galaxy surveys
W Hu, D J Eisenstein & M Tegmark 1998, Phys. Rev. Lett., 80,
5255-5258
-
Removing point sources from CMB maps
M Tegmark & A de Oliveira-Costa 1998, ApJL, 500, 83-86
-
The time-evolution of bias
M Tegmark & P J E Peebles 1998, ApJL, 500, 79-82
-
Cosmic complementarity: combining
CMB and supernova observations
M Tegmark, D J Eisenstein & W Hu 1998, in "Fundamental
parameters in Cosmology", Rencontres de Moriond
-
Cosmic complementarity: probing the acceleration
of the Universe
M Tegmark, D J Eisenstein,W Hu & R Kron 1998, astro-ph/9805117
-
Cosmic complementarity: H_0 and Omega_m from combining CMB experiments
and redshift surveys
D J Eisenstein,W Hu & M Tegmark 1998, astro-ph/9805239,
ApJL, 504, L57-60
-
Observationally Determining the Properties of Dark Matter
W Hu, D J Eisenstein, M Tegmark & M White 1999, astro-ph/9806362,
Phys. Rev. D, 59, 023512
-
Cosmic Complementarity: Joint Parameter Estimation from CMB Experiments
and Redshift Surveys
D J Eisenstein,W Hu & M Tegmark 1999, astro-ph/9807130,
ApJ, 518, 2-23
-
Galactic
emission at 19 GHz
A de Oliveira-Costa, M Tegmark, L Page & S Boughn 1998, astro-ph/9807329,
ApJL, 509, L9-12
-
Mapping
the CMB I: the first flight of the QMAP experiment
M Devlin, A de Oliveira-Costa, T Herbig, A Miller, C B Netterfield,
L Page & M Tegmark 1998, astro-ph/9808043,
ApJL, 509, L65-68
-
Mapping
the CMB II: the second flight of the QMAP experiment
M Devlin, A de Oliveira-Costa, T Herbig, A Miller, L Page & M Tegmark 1998,
astro-ph/9808044,
ApJL, 509 L69-72
-
Mapping
the CMB III: combined analysis of QMAP flights
A de Oliveira-Costa, M Devlin, T Herbig, A Miller, C B Netterfield,
L Page & M Tegmark 1998, astro-ph/9808045,
ApJL, 509, L73-76
-
Cosmological constraints on neutrino masses
M Tegmark, W Hu & D J Eisenstein 1998, in proceedings of
1998 Ringberg Euroconference, Ed. Bernd Kniehl
-
Comparing and combining CMB datasets
M Tegmark 1999, astro-ph/9809001,
ApJL, 519, 513-517
-
Bias and beyond
M Tegmark, astro-ph/9809185,
in ``Wide Field Surveys in Cosmology'', S. Colombi and Y. Mellier
(eds), Editions Frontieres (1998), p43-46
- New techniques for making CMB maps
A de Oliveira-Costa & M Tegmark,
in ``Wide Field Surveys in Cosmology'', S. Colombi and Y. Mellier
(eds), Editions Frontieres (1998), p311-314
-
Cosmological constraints from current CMB and SN 1a
data: a brute force 8 parameter analysis
M Tegmark 1999, astro-ph/9809201,
ApJL, 514, L69-72
-
Observational evidence for stochastic biasing
M Tegmark & B Bromley 1999, astro-ph/9809324,
ApJL, 518, L69-72
-
Weak lensing: prospects for measuring cosmological parameters
W Hu & M Tegmark 1999, astro-ph/9811168
, ApJL, 514, L65-68
-
Bias is Complicated
M Tegmark & B Bromley 2000,
Physica Scripta, T85, L59-62
-
Time evolution of galaxy formation and bias in cosmological simulations
M Blanton, R Cen, J P Ostriker, M A Strauss, M Tegmark 2000,
astro-ph/9903165,
ApJ, 531, 1-16
-
Is the cosmic microwave background really
non-Gaussian?
B Bromley & M Tegmark 1999, astro-ph/9904254,
ApJL, 524, L79-82
-
Cross-correlation of Tenerife data with Galactic templates - evidence
for spinning dust?
A de Oliveira-Costa, M Tegmark, C M Gutierrez, A W Jones, R D Davies,
A N Lasenby, R Rebolo & R A Watson 1999, astro-ph/9904296,
ApJL, 527, L9-12
-
Decorrelating the power spectrum of galaxies
A J S Hamilton & M Tegmark 2000, astro-ph/9905192,
MNRAS, 312, 285-294
-
Foregrounds and forecasts for the cosmic microwave background
M Tegmark, D J Eisenstein, W Hu, A de Oliveira-Costa 2000,
astro-ph/9905257,
ApJ, 530, 133-165
-
The power spectrum of the CfA/SSRS UZC galaxy redshift survey
N Padmanabhan, M Tegmark & A J S Hamilton 2001,
astro-ph/9911421,
ApJ, 520, 52-64
-
A spin modulated telescope to make two dimensional CMB maps
J Staren, P Meinhold, J Childers, M Lim, A Levy, P Lubin,
M Seiffert, T Gaier, N Figueiredo, T Villela, C A Wuensche,
M Tegmark, A de Oliveira-Costa 2000, astro-ph/9912212,
ApJ, 539, 52
-
Current cosmological constraints from a 10 parameter CMB analysis
M Tegmark & M Zaldarriaga 2000, astro-ph/0002091,
ApJ, 541, 535-541
-
Large-Scale Sunyaev-Zel'dovich Effect:
Measuring Statistical Properties with Multifrequency Maps
A Cooray, W Hu, M Tegmark 2000,
astro-ph/0002238, ApJ, 540, 1
-
Galactic contamination in the QMAP experiment
A de Oliveira-Costa, M Tegmark, M J Devlin, L M Haffner, T Herbig,
A D Miller, L A Page, R J Reynolds, S L Tufte 2000,
astro-ph/0003090, ApJL, 542, L5-8
-
Linear Redshift Distortions and Power in the PSCz Survey
A J S Hamilton, M Tegmark, N Padmanabhan 2000,
astro-ph/0004334, MNRAS, 317, L23
-
New CMB constraints on the cosmic matter budget:
trouble for nucleosynthesis?
M Tegmark & M Zaldarriaga 2000,
Phys. Rev. Lett., 85, 2240
-
The dark side of distortion
M Tegmark 2000, Nature, 405, 133
-
CMB Observables and their cosmological implications
W Hu, M Fukugita, M Zaldarriaga & M Tegmark 2001,
astro-ph/0006436, ApJ, 549, 669-680
-
Towards a refined cosmic concordance model: joint 11-parameter constraints
from CMB and large-scale structure
M Tegmark, M Zaldarriaga, A J S Hamilton 2001, astro-ph/0008165,
Phys. Rev. D, 63, 043007-043020
-
Latest cosmological constraints on the densities of hot and cold dark matter
M Tegmark, M Zaldarriaga & A J S Hamilton 2001,
hep-ph/0008145, in Sources and Detection of Dark Matter/Energy in the Universe,
ed. D. B. Cline (Springer, Berlin, 2000)
-
Weighing neutrinos with microwave background and galaxy data
M Tegmark, M Zaldarriaga & A J S Hamilton 2000,
Nucl. Phys. B 91, 387-392,
in proceedings of
XIX International Conference on Neutrino Physics and Astrophysics,
Sudbury, Canada, June 2000
-
The Initial Conditions of Galaxy Formation
M Tegmark, M Zaldarriaga & A J S Hamilton 2001,
in The Physics of Galaxy Formation, ed. M. Umemura & H. Susa
(ASP Conf. Ser.)
-
Why is the fraction of four-image radio lens systems so high?
D Rusin & M Tegmark 2001, astro-ph/0008329, ApJ, 553, 709-721
-
The Real Space Power Spectrum of the PSCz Survey from 0.01 to 300 h/Mpc
A J S Hamilton & M Tegmark 2002, astro-ph/0008392,
MNRAS, 330, 506-530
-
A New Spin on Galactic Dust
A de Oliveira-Costa, M Tegmark, D P Finkbeiner, C M Gutierrez, L M Haffner, A W Jones,
A N Lasenby, R Rebolo, R J Reynolds, S L Tufte & R A Watson 2002,
astro-ph/0010527, ApJ, 567, 363-369
-
Comparing and combining the Saskatoon, QMAP and COBE CMB maps
Y Xu, M Tegmark, A de Oliveira-Costa, M J Devlin, T Herbig, A D Miller,
C B Netterfield & L Page 2001,
astro-ph/0010552, Phys. Rev. D, 63, 103002-103012
-
Constraints from the Lyman alpha forest power spectrum
M Zaldarriaga, L Hui & M Tegmark 2001,
astro-ph/0011559, ApJ, 557, 519-526
-
How to measure CMB polarization power spectra without losing information
M Tegmark & A de Oliveira-Costa 2001,
astro-ph/0012120, Phys. Rev. D, 64;, 063001-063015
-
Measuring the metric:
a parametrized post-Friedmanian approach
to the cosmic dark energy problem
M Tegmark 2002,
astro-ph/0101354, Phys. Rev. D, 66, 103508-1-10
-
Gaussianity of degree-scale cosmic microwave background anisotropy observations
Chan-Gyung Park, Changbom Park, Bharat Ratra & Max Tegmark 2001,
astro-ph/0102406, ApJ, 556, 582-589
-
The CMB power spectrum at l=30-200 from QMASK
Yongzhong Xu, Max Tegmark, Angelica de Oliveira-Costa 2002,
astro-ph/0104419, Phys. Rev. D, 65, 083002-1-6
-
Is cosmology consistent?
Xiaomin Wang, Max Tegmark, Matias Zaldarriaga 2002,
astro-ph/0105091, Phys. Rev. D, 65, 123001-1-14
-
Galaxy clustering in early SDSS redshift data
Idit Zehavi, Michael Blanton, Joshua Frieman, David Weinberg,
Houjun Mo, Michael Strauss + 60 alphabetized authors
(I'm the 53rd...:-)
2002, astro-ph/0102476, ApJ, 571, 172
-
A limit on the large angular scale polarization of the cosmic
microwave background
Brian Keating, Chris O'Dell, Angelica de Oliveira-Costa,
Slade Klawikowski, Nate Stebor, Lucio Piccirillo, Max Tegmark
& Peter Timbie 2001,
astro-ph/0107013, ApJL, 560, L1-4
-
Analysis of systematic effects and statistical uncertainties in
angular clustering of galaxies from early SDSS data
Ryan Scranton, David Johnston, Scott Dodelson, Joshua Frieman
et al (I'm 21 out of 47 :-) 2002,
astro-ph/0107416, ApJ, 579, 48
-
The angular correlation function of galaxies from early SDSS data
Andrew Connolly, Ryan Scranton, David Johnston et al
(I'm 21 out of 49) 2002,
astro-ph/0107417, ApJ, 579, 42
-
The angular power spectrum of galaxies from early SDSS data
Max Tegmark, Scott Dodelson, Daniel Eisenstein, Vijay Narayanan,
Roman Scoccimarro, Ryan Scranton, Michael Strauss et al
(41 others) 2002,
astro-ph/0107418, ApJ, 571, 191
-
KL estimation of the power spectrum parameters from the angular distribution of
galaxies in early SDSS data
Alexander Szalay, Bhuvnesh Jain, Takahiko Matsubara, Ryan Scranton,
Michael S. Vogeley, et al (I'm 26 out of 49) 2003,
astro-ph/0107419, ApJ, 591, 1
-
The 3D power spectrum from angular clustering of galaxies in early SDSS data
Scott Dodelson, Vijay K. Narayanan, Max Tegmark, Ryan Scranton et al
(42 others) 2002,
astro-ph/0107421, ApJ, 572, 140
-
Gaussianity of the QMASK Map (Morphological Measures of non-Gaussianity in CMB Maps)
Sergei Shandarin, Hume Feldman, Yongzhong Xu & Max Tegmark 2002,
astro-ph/0107136, ApJS, 141, 1-11
-
The power spectrum of galaxies in the 2dF 100k redshift survey
Max Tegmark, Andrew Hamilton & Yongzhong Xu 2002,
astro-ph/0111575, MNRAS, 335, 887-908
-
Cosmic censorship
M Tegmark 2002, Nature, 415, 374
-
Measuring Spacetime: from the Big Bang to Black Holes
M Tegmark 2002, Science, 296, 1427-1433
-
First attempt at measuring the CMB cross-polarization
Angelica de Oliveira-Costa, Max Tegmark, Matias Zaldarriaga,
Denis Barkats, Josh O Gundersen, Matt M Hedman, Suzanne T Staggs,
Bruce Winstein 2003, astro-ph/0204021, Phys. Rev. D, 67, 023003
-
Two-Dimensional Topology of the Sloan Digital Sky Survey
Fiona Hoyle, Michael S. Vogeley, J. Richard Gott III, Michael Blanton,
Max Tegmark, David H. Weinberg, J. Brinkmann, N. Bahcall 2002,
astro-ph/0206146, ApJ, 580, 663-671
-
Separating the Early Universe from the Late Universe:
cosmological parameter estimation beyond the black box
M Tegmark & M Zaldarriaga 2002, astro-ph/0207047,
Phys. Rev. D, 66, 103508-1-18
-
E/B decomposition of finite pixelized CMB maps
Emory Bunn, Matias Zaldarriaga, Max Tegmark & Angelica de Oliveira-Costa 2003,
astro-ph/0207338, PRD, 67, 023501
-
The Galaxy Luminosity Function and Luminosity Density at Redshift z=0.1
Michael R. Blanton, David W. Hogg, J. Brinkmann, Andrew J. Connolly, Istvan Csabai, Neta A. Bahcall, Masataka Fukugita,
Jon Loveday, Avery Meiksin, Jeffrey A. Munn, R. C. Nichol, Sadanori Okamura, Thomas Quinn, Donald P. Schneider,
Kazuhiro Shimasaku, Michael A. Strauss, Max Tegmark, Michael S. Vogeley & David H. Weinberg 2003,
astro-ph/0210215, ApJ, 592, 819
-
The end of unified dark matter?
Havard Sandvik, Max Tegmark, Matias Zaldarriaga & Ioav Waga 2004,
astro-ph/0212114, PRD, 69, 123524
-
The last stand before WMAP: cosmological parameters from lensing, CMB and
galaxy clustering
Xiaomin Wang, Max Tegmark, Bhuvnesh Jain & Matias Zaldarriaga 2003, astro-ph/0212417,
PRD, 68, 123001-1-12
-
The Large-Scale Polarization of the Microwave Background and Foreground
Angelica de Oliveira-Costa,
Max Tegmark, Christopher O'Dell, Brian Keating, Peter
Timbie, George Efstathiou & George Smoot 2003,
astro-ph/0212419, PRD, 68, 083003-1-11
-
CMB Polarization at Large Angular Scales:
Data Analysis of the POLAR Experiment
Christopher W. O'Dell, Brian G. Keating, Angelica de Oliveira-Costa,
Max Tegmark & Peter T. Timbie 2003,
astro-ph/0212419, PRD, 68, 42002
-
Beyond Cosmological Parameters, M Tegmark 2003,
in The Emergence of Cosmic Structure,
proc. 13th Annual Astrophysics Conference in Maryland,
S. S. Holt & C. Reynolds eds., AIP
-
Cosmology from Large Scale Structure,
Andrew Hamilton, Nick Gnedin, Max Tegmark, Yongzhong Xu 2003,
astro-ph/0212552,
in Particle Physics,
H.-V. Klapdor-Kleingrothaus \& R. Viollier eds., Springer
-
On Departures From a Power Law in the Galaxy Correlation Function,
Idit Zehavi, David H. Weinberg, Zheng Zheng, Andreas A. Berlind,
Joshua A. Frieman, Roman Scoccimarro, Ravi K. Sheth, Michael R. Blanton,
Max Tegmark, Houjun J. Mo, et al. 2004,
astro-ph/0301280,
ApJ, 608, 16
-
A high resolution foreground cleaned CMB map from WMAP
Max Tegmark, Angelica de Oliveira-Costa & Andrew Hamilton 2003, astro-ph/0302496,
PRD, 68, 123523
-
Anthropic predictions for neutrino masses
Max Tegmark & Alexander Vilenkin 2005, astro-ph/0304536, PRD, 71, 103523
-
The First Data Release of the Sloan Digital Sky Survey,
Kev Abazajian et al 2003 (I'm out of 162nd out of 189 alphabetized authors :),
astro-ph/0305492,
Astron. J., 126, 2081
-
Angular Clustering with Photometric Redshifts in the Sloan Digital Sky Survey:
Bimodality in the Clustering Properties of Galaxies,
Tamas Budavari, Andrew J. Connolly, Alexander S. Szalay, Istvan Szapudi, Istvan Csabai,
Ryan Scranton, Neta A. Bahcall, Jon Brinkmann, Daniel J. Eisenstein, Joshua A. Frieman,
Masataka Fukugita, James E. Gunn, David Johnston, Stephen Kent, Jon N. Loveday,
Robert H. Lupton, Max Tegmark, Aniruddha R. Thakar, Brian Yanny, Donald G. York,
Idit Zehavi 2003,
astro-ph/0305603,
ApJ, 595, 59
-
The Large-Scale Polarization of the Microwave Foreground,
Angelica de Oliveira-Costa,
Max Tegmark, Christopher O'Dell, Brian Keating, Peter
Timbie, George Efstathiou \& George Smoot 2003,
astro-ph/0305590,
in proceedings of
"The Cosmic Microwave Background and its Polarization", New Astronomy Reviews
(eds. S. Hanany & K. A. Olive)
-
Measuring CMB Polarization with BOOMERANG,
T. Montroy, P.A.R. Ade, A. Balbi, J.J. Bock, J.R. Bond, J. Borrill,
A. Boscaleri, P. Cabella, C.R. Contaldi, B.P. Crill, P. de Bernardis,
G. De Gasperis, A. de Oliveira-Costa, G. De Troia, G. di Stefano, K. Ganga,
E. Hivon, V.V. Hristov, A. Iacoangeli, A.H. Jaffe, T.S. Kisner, W.C. Jones,
A.E. Lange, S. Masi, P.D. Mauskopf, C. Mactavish, A. Melchiorri, F. Nati,
P. Natoli, C.B. Netterfield, E. Pascale, F. Piacentini, D. Pogosyan, G. Polenta,
S. Prunet, S. Ricciardi, G. Romeo, J.E. Ruhl, E. Torbet, M. Tegmark, N. Vittorio 2003,
astro-ph/0305593,
in proceedings of
"The Cosmic Microwave Background and its Polarization", New Astronomy Reviews
(eds. S. Hanany & K. A. Olive)
-
A scheme to deal accurately and efficiently with
complex angular masks in galaxy surveys,
Andrew J. S. Hamilton & Max Tegmark 2004,
astro-ph/0306324, MNRAS, 349, 115
-
The Three-Dimensional Power Spectrum of Galaxies from
the Sloan Digital Sky Survey,
Max Tegmark,
Michael Blanton,
Michael A. Strauss,
Fiona S. Hoyle,
David Schlegel,
Roman Scoccimarro,
Michael S. Vogeley,
David H. Weinberg,
Idit Zehavi,
Andreas Berlind,
Tamas Budavari,
Andrew Connolly,
Daniel J. Eisenstein,
Douglas Finkbeiner,
Joshua A. Frieman,
Andrew J. S. Hamilton,
James E. Gunn,
Lam Hui,
Bhuvnesh Jain,
David Johnston,
Stephen Kent,
Huan Lin,
Reiko Nakajima,
Robert C. Nichol,
Adrian Pope,
Ryan Scranton,
Uros Seljak,
Ravi K. Sheth,
Albert Stebbins,
Alexander S. Szalay,
Istvan Szapudi,
Licia Verde,
Yongzhong Xu et al
(64 authors in total) 2004,
astro-ph/0310725,
ApJ, 606, 702-740
-
The significance of the largest scale CMB fluctuations in WMAP,
Angelica de Oliveira-Costa, Max Tegmark, Matias Zaldarriaga & Andrew Hamilton 2004,
astro-ph/0307282, PRD, 69, 063516
-
Physical evidence for dark energy,
R. Scranton, A. J. Connolly, R. C. Nichol, A. Stebbins,
I. Szapudi, D. J. Eisenstein, N. Afshordi, T. Budavari, I. Csabai,
J. A. Frieman, J. E. Gunn, D. Johnson, Y. Loh, R. H. Lupton,
C. J. Miller, E. S. Sheldon, R. S. Sheth, A. S. Szalay,
M. Tegmark, Y. Xu, et al 2003,
astro-ph/0307335
-
A Map of the Universe,
J. Richard Gott III, Mario Juric, David Schlegel, Fiona Hoyle, Michael Vogeley,
Max Tegmark, Neta Bahcall, Jon Brinkmann 2005, astro-ph/0310571, ApJ, 624, 463
-
Cosmological parameters from SDSS and WMAP,
Max Tegmark, Michael Strauss, Michael R. Blanton, Kev Abazajian, Scott Dodelson, Havard Sandvik, Xiaomin
Wang, David H. Weinberg, Idit Zehavi, Neta A. Bahcall, Fiona Hoyle, David Schlegel, Roman Scoccimarro,
Michael S. Vogeley, Andreas Berlind, Tamas Budavari, Andrew Connolly Daniel J. Eisenstein, Douglas
Finkbeiner, Joshua A. Frieman, James E. Gunn, Lam Hui, Bhuvnesh Jain, David Johnston,
Stephen Kent, Huan Lin, Reiko Nakajima, Robert C. Nichol, Jeremiah P. Ostriker, Adrian Pope, Ryan Scranton, Uros Seljak, Ravi K.
Sheth, Albert Stebbins, Alexander S. Szalay, Istvan Szapudi, Yongzhong Xu, James Annis, J. Brinkmann, Scott
Burles, Francisco J. Castander, Istvan Csabai, Jon Loveday, Mamoru Doi, Masataka Fukugita, Greg Hennessy,
David W. Hogg, Zeljko Ivezic, Gillian R. Knapp, Don Q. Lamb, Brian C. Lee, Robert H. Lupton, Timothy A.
McKay, Peter Kunszt, Jeffrey A. Munn, Liam O'Connell, John Peoples, Jeffrey R. Pier,
Michael Richmond, Constance Rockosi, Donald P. Schneider, Christopher Stoughton, Douglas L. Tucker, Daniel E.
Vanden Berk, Brian Yanny and Donald G. York 2004,
astro-ph/0310571, PRD, 69, 103501
-
Maps of the millimetre sky from the BOOMERanG experiment,
P. de Bernardis et al 2003,
astro-ph/0311396
-
CMBfit: Rapid WMAP likelihood calculations with normal parameters,
Havard Sandvik, Max Tegmark, Xiaomin Wang & Matias Zaldarriaga 2004,
astro-ph/0311544, PRD, 69, 063005
-
The Quest for Microwave Foreground X,
Angelica de Oliveira-Costa, Max Tegmark, R.D. Davies, Carlos M. Gutierrez,
A.N. Lasenby, R. Rebolo & R.A. Watson 2004,
astro-ph/0312039, ApJL, 606, L89
-
Cosmological Parameters from Eigenmode Analysis of Sloan Digital Sky Survey Galaxy Redshifts,
A. Pope et al 2004,
astro-ph/0401249, ApJ, 607, 655-660
-
New dark energy constraints from supernovae, microwave background and galaxy clustering,
Yun Wang & Max Tegmark 2004,
astro-ph/0403292, Phys. Rev. Lett., 92, 241302
-
The Second Data Release of the Sloan Digital Sky Survey,
Kev Abazajian et al 2004 (144 authors :) 2004,
astro-ph/0403325,
Astron. J., 128, 502-12
-
The Sloan Digital Sky Survey Commissioning Data: Orion,
Douglas Finkbeiner et al 2004,
Astron. J., 128, 2577
-
Anthropic predictions for vacuum energy and neutrino masses,
Levon Pogosian, Alexander Vilenkin & Max Tegmark 2004,
astro-ph/0404497,
JCAP, 2004-7, 5
-
How accurately can suborbital experiments measure the CMB?,
Angelica de Oliveira-Costa, Max Tegmark, Mark Devlin, Lyman Page, Amber Miller,
Barth Netterfield, Yongzhong Xu 2005,
astro-ph/0406375,
PRD, 71, 043004
-
SDSS galaxy bias from halo mass-bias relation and its cosmological implications,
U Seljak, A Makarov, R Mandelbaum, C Hirata, N Padmanabhan, P McDonald, M Blanton, M Tegmark,
N Bahcall & J Brinkmann 2005, astro-ph/0406594, PRD, 71, 043511
-
Cosmological parameter analysis including SDSS Ly-alpha forest and galaxy bias:
constraints on the primordial spectrum of fluctuations, neutrino mass, and dark energy,
U Seljak, A Makarov, P McDonald, S Anderson, N Bahcall, J Brinkmann, S Burles, R Cen, M Doi,
J Gunn, Z Ivezic, S Kent, R Lupton, J Munn, R Nichol, J Ostriker, D Schlegel,
M Tegmark, D Van den Berk, D Weinberg & D York 2005,
astro-ph/0407372, PRD, 71, 103515
-
Cosmology and the Halo Occupation Distribution from Small-Scale Galaxy
Clustering in the Sloan Digital Sky Survey,
Kevork Abazajian, Zheng Zheng, Idit Zehavi, David H. Weinberg, Joshua A. Frieman, Andreas A. Berlind,
Michael R. Blanton, Neta A. Bahcall, J. Brinkmann, Donald P. Schneider & Max Tegmark 2005,
astro-ph/0408003, ApJ, 625, 613
-
Non-parametric inversion of strong lensing systems,
J M Diego, P Protopapas, H B Sandvik & M Tegmark 2005,
astro-ph/0408418,
MNRAS, 360, 477
-
The Luminosity and Color Dependence of the Galaxy Correlation Function,
I Zehavi, Z Zheng, DH Weinberg, JA Frieman, AA Berlind, MR Blanton, R Scoccimarro, RK
Sheth, MA Strauss, I Kayo, Y Suto, M Fukugita, O Nakamura, NA Bahcall, J Brinkmann, JE
Gunn, GS Hennessy, Z Ivezic, GR Knapp, J Loveday, A Meiksin, DJ Schlegel, DP Schneider, I
Szapudi, M Tegmark, MS Vogeley & DG York 2005,
astro-ph/0408569, ApJ, 630, 1-27
-
Multiple universes, cosmic coincidences, and other dark matters,
Anthony Aguirre & Max Tegmark 2005,
hep-th/0409072, JCAP, 2005-1, 3
-
NYU-VAGC: a galaxy catalog based on new public surveys,
Michael R. Blanton, David J. Schlegel, Michael A. Strauss, J. Brinkmann, Douglas Finkbeiner, Masataka Fukugita, James E. Gunn,
David W. Hogg, Zeljko Ivezic, G. R. Knapp, Robert H. Lupton, Jeffrey A. Munn, Donald P. Schneider, Max Tegmark \& Idit Zehavi 2005,
astro-ph/0410166, Astron. J, 129, 2562-2578
-
The Third Data Release of the Sloan Digital Sky Survey,
K. Abazajian et al. (SDSS collaboration; I'm one of 154 alphabetized authors) 2005,
astro-ph/0410239, Astron. J, 129, 1755
-
What does inflation really predict?,
Max Tegmark 2005, astro-ph/0410281, JCAP, 2005-4, 1
-
The Intermediate-Scale Clustering of Luminous Red Galaxies,
Idit Zehavi, Daniel J. Eisenstein, Robert C. Nichol, Michael R. Blanton, David W. Hogg,
Jon Brinkmann, Jon Loveday, Avery Meiksin, Donald P. Schneider, Max Tegmark 2005,
astro-ph/0411557, ApJ, 621, 22-31
-
Non-parametric mass reconstruction of A1689 from strong lensing data with SLAP,
J. M. Diego, H. B. Sandvik, P. Protopapas, M. Tegmark, N. Benitez & T. Broadhurst 2005,
astro-ph/0412191, MNRAS, 362, 1247-1258
-
Twenty-one Centimeter Tomography with Foregrounds,
Xiaomin Wang, Max Tegmark, Mario Santos & Lloyd Knox 2006,
astro-ph/0501081, ApJ, 650, 529
-
Detection of the Baryon Acoustic Peak in the Large-Scale Correlation Function of SDSS Luminous Red
Galaxies,
D. J. Eisenstein, I. Zehavi, D. W. Hogg, R. Scoccimarro, M. R. Blanton, R. C. Nichol,
R. Scranton, H. Seo, M. Tegmark, Z. Zheng, S. Anderson, J. Annis, N. Bahcall, J. Brinkmann,
S. Burles, F. J. Castander, A. Connolly, I. Csabai, M. Doi, M. Fukugita, J. A. Frieman,
K. Glazebrook, J. E. Gunn, J. S. Hendry, G. Hennessy, Z. Ivezic, S. Kent, G. R. Knapp, H.
Lin, Y. Loh, R. H. Lupton, B. Margon, T. McKay, A. Meiksin,
J. A. Munn, A. Pope, M. Richmond, D. Schlegel, D. Schneider, K. Shimasaku, C. Stoughton, M. Strauss,
M. SubbaRao, A. S. Szalay, I. Szapudi, D. Tucker, B. Yanny \& D. York 2005,
astro-ph/0501171, ApJ, 633, 560-574
-
Uncorrelated Measurements
of the Cosmic Expansion History and Dark Energy from Supernovae,
Yun Wang & Max Tegmark 2005,
astro-ph/0501351, PRD, 71, 103513
-
Cosmological
neutrino bounds for non-cosmologists,
Max Tegmark 2005,
hep-ph/0503257,
in "Neutrino Physics", Proceedings of Nobel Symposium 129, eds.,
L Bergstrom, O. Botner, P. Carlson, P. O. Hulth, and T. Ohlsson
-
Joint Efficient Dark-energy Investigation (JEDI): a Candidate Implementation of the NASA-DOE Joint Dark Energy Mission (JDEM),Wang, Y. et al (I'm one of 12 alphabetized authors), astro-ph/0507043
-
How did it all begin?,
Max Tegmark, for 2005 Young Scholars Competition in honor of Charles Townes, astro-ph/0508429
-
Instrument, Method, Brightness and Polarization Maps from the 2003 flight of BOOMERanG, Masi, S. et al (I'm one of 44 alphabetized authors), astro-ph/0507509, AA, 458, 687-716
-
A Measurement of the Angular Power Spectrum of the CMB Temperature Anisotropy from the 2003 Flight of Boomerang, Jones, W.C., et al (I'm one of 37 alphabetized authors) 2006, astro-ph/0507494, ApJ, 647, 823-832
-
A measurement of the polarization-temperature angular cross power spectrum of the Cosmic Microwave Background from the 2003 flight of BOOMERANG,
Piacentini, F., et al (I'm one of 37 alphabetized authors) 2006, astro-ph/0507507, ApJ, 647, 833-839
-
A Measurement of the CMB EE Spectrum from the 2003 Flight of BOOMERANG, Montroy, T.E., et al (I'm one of 37 alphabetized authors) 2006, astro-ph/0507514, ApJ, 647, 813-822
-
Cosmological Parameters from the 2003 flight of BOOMERANG,
MacTavish, C.J., et al (I'm one of 38 alphabetized authors) 2006, astro-ph/0507503, ApJ, 647, 799-812
-
The Fourth Data Release of the Sloan Digitial Sky Survey,
Adelman-McCarthy, JK, et al 2006, astro-ph/0507711, ApJS, 162, 38-48
-
Limits on non-Gaussianities from WMAP data,P Creminelli, A Nicholis, L Senatore, M Tegmark & M Zaldarriaga 2006, astro-ph/0509029, JCAP, 0605, 004
-
Combined reconstruction of weak and strong lensing data with WSLAP,
J.M. Diego, M. Tegmark, P. Protopapas, H.B. Sandvik, astro-ph/0509103, MNRAS, 375, 958-970
-
How Unlikely is a Doomsday Catastrophe?,
M Tegmark & N Bostrom 2005, astro-ph/0512204, Nature, 438, 754
-
On Math, Matter and Mind,
P Hut, M Alford, M Tegmark 2006, physics/0510188, Found. Physics, 36, 765-794
-
Dimensionless constants, cosmology and other dark matters,
M Tegmark, A Aguirre, M J Rees, F Wilczek 2006, astro-ph/0511774, PRD, 73, 023505
-
CMB multipole measurements in the presence of foregrounds,
A de Oliveira-Costa, M Tegmark 2006, astro-ph/0603369, PRD, 74, 023005
-
Task Force on Cosmic Microwave Background Research,
J Bock et al (I'm one of 14 alphabetized authors), 2006, astro-ph/0604101. Final Report of the DoE/NASA/NSF Interagency Task Force on CMB Research.
-
The Clustering of Luminous Red Galaxies in the Sloan Digital Sky Survey Imaging Data,
N Padmanabhan et al (I'm one of 20 alphabetized authors), 2006, astro-ph/0605302, MNRAS, 378, 852-872
-
Constraining Torsion with Gravity Probe B,
Y Mao, M Tegmark, A Guth & S Cabi, 2006, gr-qc/0608121, PRD, 76, 104029
-
Cosmological Constraints from the SDSS Luminous Red Galaxies, M Tegmark et al 2006, astro-ph/0608632, PRD, 74, 123507
-
The shape of the SDSS DR5 galaxy power spectrum,
W J Percival et al (I'm one of 17 alphabetized authors), 2007, astro-ph/0608636, ApJ, 657, 645-663
-
Limits on f_NL parameters from WMAP 3yr data,
P Creminell, L Senatore, M Zaldarriaga, M Tegmark, 2006, astro-ph/0610600, JCAP, 03, 005
-
Constraining f(R) Gravity as a Scalar Tensor Theory, T Faulkner, M Tegmark, E Bunn, Y Mao, 2007, astro-ph/0612569, PRD, 76, 063505
-
SDSS Galaxy Clustering: Luminosity & Color Dependence and Stochasticity, Molly E.C. Swanson, Max Tegmark, Michael Blanton, Idit Zehavi, astro-ph/0702584, in press MNRAS
-
CMB Polarization with Boomerang 2003, F. Piacentini et al (I'm one of 40 alphabetized authors), 2007, New Astronomy Reviews, 51, pp. 244-249.
-
Searching for non Gaussian signals in the BOOMERanG 2003 CMB maps, G. De Troia et al (I'm one of 41 alphabetized authors), 2007, arxiv:0705.1615 [astro-ph], ApJ, 670, L73-76
-
Searching for non Gaussian signals in the BOOMERanG 2003 CMB maps: Preliminary Results, G. De Troia et al (I'm one of 41 alphabetized authors), 2007, New Astronomy Reviews, 51, 250-255
-
The millimeter sky as seen with BOOMERanG, S. Masi et al (I'm one of 44 alphabetized authors), 20047, New Astronomy Reviews, 51, 236-243
-
Observations of the temperature and polarization anisotropies with BOOMERANG 2003, WC Jones et al (I'm one of 38 alphabetized authors), 2007, New Astronomy Reviews, 50, 945-950
-
The Sixth Data Release of the Sloan Digital Sky Survey, JK Adelman-McCarthy et al (I'm one of 100 alphabetized authors), 2007, arxiv:0707.3413 [astro-ph], ApJS, 172, 634
-
Searching for Inflation in Simple String Theory Models: An Astrophysical Perspective, MP Hertzberg, M. Tegmark, S. Kachru, J. Shelton, and O. Ozcan, 2007, arxiv:0709.0002 [astro-ph], PRD, 76, 103521
-
Inflationary Constraints on Type IIA String Theory, M. P. Hertzberg, S. Kachru, W. Taylor, M Tegmark, arxiv:0711.2512 [hep-th]
-
Methods for Rapidly Processing Angular Masks of Next-Generation Galaxy Surveys, M.
Swanson, M. Tegmark, A. J. S. Hamilton, J. C. Hill, arxiv:0711.4352 [astro-ph]
-
A model of diffuse Galactic Radio Emission from 10 MHz to 100 GHz, A. de Oliveira-Costa, M. Tegmark, B. M. Gaensler, J. Jonas, T. L. Landecker and P. Reich, arxiv:0802.1525 [astro-ph]
-
How accurately can 21 cm tomography constrain cosmology?, Y. Mao, M. Tegmark, M. McQuinn, M. Zaldarriaga and O. Zahn, arxiv:0802.1710 [astro-ph]
Non-cosmology publications
-
Apparent wave-function collapse caused by scattering
M Tegmark 1993, Found. Phys. Lett., 6, 571-590
-
Steady states of harmonic oscillator chains and shortcomings
of harmonic heat baths
M Tegmark & L Yeh 1994, Physica A, 202, 342-362
-
An elementary proof that the biharmonic Green function
of an eccentric ellipse changes sign
H Shapiro & M Tegmark 1994, Soc. Ind. App. Math. Rev., 36,
99-101
-
Decoherence produces coherent states: an explicit
proof for harmonic chains
M Tegmark & H Shapiro 1994, Phys. Rev. E, 50, 2538-2547
-
Does the universe in fact contain almost no information?
M Tegmark 1996, Found. Phys. Lett., 9, 25-42
-
The economics of Lake Kariba
J Oldhoff & M Tegmark 1989, Swedish International Development Agency
-
Particle-like solutions of the SU(2) Einstein-Yang-Mills equations
M Tegmark 1990, B. Sc. thesis, Royal Inst. of Technology, Stockholm,
Sweden
-
Measuring quantum states:
an experimental setup for measuring the spatial
density matrix
M Tegmark 1996, Phys. Rev. A., 54, 2703-2706
-
Is ``the theory of everything'' merely the ultimate
ensemble theory?
M Tegmark 1998, Annals of Physics, 270, 1-51
-
On the dimensionality of spacetime
M Tegmark 1997, Classical and Quantum Gravity, 14, L69-L75
-
The interpretation of quantum mechanics: many worlds
or many words?
M Tegmark 1998, Fortschr. Phys. 46, 855-862
-
The importance of quantum decoherence in brain processes
M Tegmark 2000, quant-ph/9907009,
Phys. Rev. E 61, 4194-4206
-
Why the brain is probably not a quantum computer
M Tegmark 2000,
Information Sciences 128, 155-179
-
100 Years of quantum mysteries
M Tegmark & John Archibald Wheeler 2001, quant-ph/0101063,
Scientific American Feb. 2001, 68-75
-
Parallel Universes
M Tegmark 2003, astro-ph/0302131,
Scientific American May 2003, 40-51 (cover story)
-
The Mathematical Universe, M. Tegmark, 2007, 0704.0646/gr-qc, Founds. Phys. November 2007, 116
-
Many lives in many worlds, M. Tegmark, 2007, Nature 448, 23
-
Shut up and calculate, M. Tegmark, 2007, New Scientist September 15, (cover story)
Books
- Microwave Foregrounds
Eds. A de Oliveira-Costa & M Tegmark 1999 (ASP, San Francisco), 377 page review volume
Overview of my papers (full list here)
Summary
After graduate work on the role of atomic and molecular chemistry
in cosmic reionization, I have mainly focused my research on
issues related to constraining cosmological models.
A suite of papers developed methods for analyzing cosmological data sets
using information theory
and applied them to various CMB experiments and galaxy redshift surveys,
often in collaboration with the experimentalists who had taken the data.
Another series of papers tackled various ``dirty laundry'' issues such
as microwave foregrounds and mass-to-light bias.
Other papers, most recently these,
develop and apply techniques for clarifying the big picture in cosmology:
comparing and combining diverse cosmological probes, cross-checking for
consistency and constraining cosmological models and their free parameters.
My main current research interest is cosmology theory and phenomenology.
I'm particularly enthusiastic about the prospects of combining
current and upcoming data on CMB, LSS, galaxy clusters, lensing,
LyA forest clustering, SN 1, etc. to raise the ambition level beyond the
current cosmological parameter game, testing rather than assuming the
underlying physics.
This paper and
this one
contain my battle cry.
The big picture: constraining cosmological models
A series of papers used information theory to estimate how accurately
different cosmological observables could constrain cosmological parameters, to
aid survey design etc:
CMB,
LSS,
weak lensing,
SN Ia and
CMB+LSS for the
neutrino mass,
the Hubble parameter,
mystery matter,
and in gory detail.
Another series used the latest data to constrain
cosmological parameters in practice:
1998,
2000 (incl. new fast C_l method),
after Boomerang 2000,
after 2001 Boom + DASI+Maxima,
and
with WMAP+SDSS 2003.
Are different observations consistent? Here are tests
1994,
2001
and
2003.
CMB analysis & modeling
I also have a strong interest in low-level nuts-and-bolts analysis and interpretation
of data, firmly believing that the devil is in the details. Indeed, most of my papers are in
this more grueling technical category.
Although CMB is exciting and promising,
there are some skeletons in the closet. Three real-world issues have worried
me a lot: foregrounds, numerical problems and systematic errors. Dozens
of my papers have tackled these real-world issues related to doing
precision cosmology in practice, not merely in principle. These papers all relate to different
parts of this schematic analysis pipeline.
Well-known microwave
foregrounds are synchrotron, free-free and dust emission from our
own Galaxy as well as extragalactic point sources. One of my most
referenced papers discussed how they differed from CMB not only in
their frequency dependence, but also in their spatial clustering properties,
and how this could be used to remove them more efficiently. I've since
generalized this method for real-world foregrounds whose frequency
dependence varies across the sky and to the non-Gaussian case of removing
point sources. In the latter case, weak gravitational
lensing effects also enter.
By cross-correlating different maps, I've helped
quantify the contamination at in the QMAP, Tenefife, COBE and 19 GHz experiments,
detecting synchrotron, dust, free-free and a mystery foreground, all described on
Angelica's foreground page.
My theoretical
work on reionization and the resulting spectral
and spatial distortions can also be thought of
as a foreground messing up the primordial CMB signal, especially when it
is patchy. But one person's noise is somebody else's signal: the kinematic
SZ-effect will allow measurements of cluster bulk flows on 100-500
Mpc scales with error bars of the order of 100 km/s, and Planck may produce
a useful catalog of 40,000 far infra-red point
sources.
Everything I knew about foregrounds as of year 2000 is in our 30-page
monster paper.
By
numerical issues, I mean the challenge of building a data-analysis
pipeline that extracts the information from CMB data in practice, in a
reasonable amount of CPU time, which is easier said than done given the
huge size of upcoming data sets. You'll find my ideas for how do this on
my pipeline page - here's a brief summary
of what I've done. I'm interested in all steps of the pipeline, from experimental
design to pixelization, mapmaking,
map merging, foreground removal, power
spectrum estimation with incomplete sky coverage and parameter
estimation. I think it is useful to think of the entire pipeline in
terms of information theory and data compression, as described in more
detail here and here.
Mapmaking is an important step in the
pipeline whereby huge data sets can be reduced to a more manageable size
without losing any cosmological information. We used such lossless techniques
when making the Saskatoon, HACME,
QMAP
and QMASK
maps, and I'm currently working on other data sets. For maps with less
than about 104 pixels, the brute-force
approach to parameter estimation that I introduced for the 2 year COBE
data and applied to the combined COBE
and Tenerife data sets is feasible and gives minimal error bars, which
is why it was subsequently adopted by the COBE team in their 4 year data
analysis. Linear data compression techniques
constitute a powerful tool for getting the same answer orders of magnitudes
faster. They are also a great tool for spotting systematic
errors,
as we showed with the first
and second
flights of QMAP.
For future megapixel maps, however, another data compression
step will probably have to be added to make the pipeline computationally
feasible: power spectrum estimation. This is complicated by incomplete
sky coverage, but I have shown that the angular power spectrum Cl
can be measured with minimal error bars with a simple quadratic
method. I have applied it to the COBE and
QMASK data,
and extensions of this method have now been successfully applied
to, e.g, the Boomerang and Maxima data sets and to
a full-blown simulation of the megapixel MAP data set by Oh,
Spergel & Hinshaw. This method works for arbitrary incomplete sky
coverage, and good news for experimental design
is that it gives window functions narrow enough to avoid blurring out features
in the power spectrum as long as the sky patch covered is a few degrees
wide in the narrowest direction.
LSS analysis & modeling
Just like the CMB, galaxy redshift surveys are a potential powerful probe
of cosmological parameters, and with a set of skeletons in the closet. Three of them
have worried me a lot: bias, numerical problems and extinction.
Many of my papers have tackled these real-world issues related to doing
precision cosmology in practice, not merely in principle. The problem of
bias refers to the fact that that the underlying matter distribution
(which we would like to measure) can be different from the galaxy distribution
(which we do measure). It has become increasingly clear that bias is (just
like CMB foregrounds!) more complicated than some had assumed. The
simplest assumption - that the galaxy fluctuations are simply proportional
to the density fluctuations - is no longer tenable. This proportionality
constant (called b) depends on scale and time. Moreover, at least on small scales,
the relation is probably nonlinear
stochastic, with a scatter due to gas physics etc
- I've helped model this both analytically
and with
simulations
and demonstrated it
observationally
with the LCRS survey.
Good news is that you can still measure cosmological parameters
by incorporating all these complications into a single unknown function
r(k), the correlation between galaxies and mass, and measure this
using redshift distortions, so all is not lost.
Just as for the
CMB, there are serious numerical problems associated with analyzing
these huge upcoming redhift surveys. Since the observational efforts going
into large-scale structure data collection are so large, both for to galaxy
surveys and CMB experiments, I feel that it is our duty as theorists to
develop fairly optimal tools for the data analysis step, thereby making
the most of the data. In this spirit, I've helped develop new
techniques for estimating the power spectrum P(k) from galaxy surveys
that include the complications of survey geometry,
integral
constraints and extinction errors
and produce
uncorrelated error bars.
I've helped apply this to the
UZC,
PSCz (1
+ 2) and
2dF redshift surveys and
to the
SDSS.
I'm currently having fun working on several further SDSS projects.
Side interests:
I have side interests in
early galaxy formation,
gamma-ray bursts,
quantum decoherence,
math problems
and
crazy stuff,
all described on my main page - click on the above links to
read about the corresponding papers.
This page is maintained by Max Tegmark,
tegmark@mit.edu,
Return
to my home page