Astronomy:

• Current and past research
• My papers: preprints and reprints
• Recent talks
• CV: postscript | pdf | HTML
• A Pulsar Card for the GBT: the Pulsar Spigot (also see Spigot Papers)
• Quick reference page

Selected Publications:

• A Precise Proper Motion for the Crab Pulsar, and the Difficulty of Testing Spin-Kick Alignment for Young Neutron Stars (D. L. Kaplan, S. Chatterjee, B. M. Gaensler, and J. Anderson 2008, ApJ, in press)
• Timing the Nearby Isolated Neutron Star RX J1856.5-3754 (van Kerkwijk and Kaplan 2008, ApJL, in press, arXiv:0712.3212)
• The Rich Mid-Infrared Environments of Two Highly-Obscured X-ray Binaries: Spitzer Observations of IGR J16318-4848 and GX 301-2 (Moon, Kaplan, Reach, Harrison, Lee, and Martin 2007, ApJ, 671, L53)
• Lost and Found: A New Position and Infrared Counterpart for the X-ray Binary Scutum X-1 (Kaplan et al. 2007, ApJ, 661, 437)
• The Distance to the Isolated Neutron Star RX J0720.4-3125 (Kaplan, van Kerkwijk, and Anderson 2007, ApJ, 660, 1428)
  
• Spectral and Rotational Changes in the Isolated Neutron Star RX J0720.4-3125 (van Kerkwijk, Kaplan, Pavlov, and Mori 2007, ApJ, 659, L149)
  
• Long-Wavelength Excesses in Two Highly-obscured High-Mass X-ray Binaries: Evidence for Circumstellar Dust (Kaplan, Moon, and Reach 2006, ApJ, 649, L107)
  
• A debris disk around an isolated young neutron star (Wang, Chakrabarty, & Kaplan 2006, Nature, 440, 772)
  
• The GBT Pulsar Spigot (Kaplan et al. 2005, PASP, 117, 643)
  
• An X-ray Search for Compact Central Sources in Supernova Remnants I: SNRs G093.3+6.9, G315.4-2.3, G084.2+0.8, & G127.1+0.5 (Kaplan et al. 2004, ApJS, 153, 269)