MKI Journal Club meets semester Fridays at noon in the Marlar Lounge (building 37, room 252).
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|Kat Deck||Besla, Kallivayalil, Hernquist, van der Marel, Cox, Keres, Simulations of the Megellanic Stream in a First Infall Scenario 1008.2210|
|Adrian Liu||Pengjie Zhang, Albert Stebbins, Confirmation of the Copernican principle at Gpc radial scale and above from the kinetic Sunyaev Zel'dovich effect power spectrum 1009.3967|
|Mike Nowak||Norman Murray Star Formation Efficiencies and Lifetimes of Giant Molecular Clouds in the Milky Way 1007.3270|
|Jinrong Lin||Cackett, Brown, Miller, Wijnands, Quiescent X-ray emission from Cen X-4: a variable thermal component 1007.2823|
|Sam Waldman||Craig J. Hogan, Indeterminacy of Holographic Quantum Geometry 0806.0665|
|Sarah Trowbridge||Gabriele Cescutti, Francesca Matteucci, Galactic astroarchaeology: reconstructing the bulge history by means of the newest data 1010.1469|
|Catherine Grant||Holman, et al. Kepler-9: A System of Multiple Planets Transiting a Sun-Like Star, Confirmed by Timing Variations|
|John Rutherford||Samuel Arbesman, Gregory Laughlin, A Scientometric Prediction of the Discovery of the First Potentially Habitable Planet with a Mass Similar to Earth 1009.2212|
|Mark Bautz||McDonald et al., On the Origin of Extended Halpha Filaments in Cooling Flow Clusters 1008.0392|
|Roberto Sanchis Ojeda||D. Huber, et al., Asteroseismology of red giants from the first four months of Kepler data: Global oscillation parameters for 800 stars 1010.4566|
|Alessandra Silvestri||WMAP's Top Ten|
|Marilena LoVerde (IAS)||
Lensing in the Lyman-alpha Forest: |
In Lyman-alpha forest measurements it is generally assumed that quasars are mere background light sources that are uncorrelated with the forest. I will discuss how gravitational lensing of the quasars violates this assumption. This effect leads to a measurement bias, but more interestingly it provides a valuable signal. This signal will be challenging to observe but would provide a direct measure of how features in the Lyman-alpha forest trace the underlying mass density field thereby testing the hypothesis that fluctuations in the forest are driven by fluctuations in mass, rather than in the ionizing background, helium reionization or winds.
|Rob Simcoe||Anna Frebel, Volker Bromm, Dwarf archaeology: Probing the first enrichment events with low-luminosity galaxies 1010.1261|
|Leo Stein||Demorest, et al., A two-solar-mass neutron star measured using Shapiro delay 1010.5788|
|Jackie Hewitt||Robertson, et al., Early Star-Forming Galaxies and the Reionization of the Universe 1011.0727|
|Leslie Rogers||Wordsworth, et al., Is Gliese 581d habitable? Some constraints from radiative-convective climate modeling 1005.5098|
|No Journal Club: Thanksgiving Break|
|Josh Dillon||Anna Cabre, Enrique Gaztanaga, Have Baryonic Acoustic Oscillations in the galaxy distribution really been measured? 1011.2729|
|Simon Albrecht||Marois, et al., Images of a fourth planet orbiting HR 8799 1011.4918|
|Stephen O'Sullivan||Moss, et al., No evidence for anomalously low variance circles on the sky 1012.1305|
|Glenn Allen||Patnaude, et al., A Decline in the Nonthermal X-ray Emission from Cassiopeia A 1012.0243|