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A Comparison of X-ray and Mid-Infrared Selection of Obscured AGN
Megan E. Eckart, Ian D. McGreer, Daniel Stern +2
We compare the relative merits of AGN selection at X-ray and mid-infrared wavelengths using data from moderately deep fields observed by both Chandra and Spitzer. The X-ray-selecte…
Radio-Selected Quasars in the Sloan Digital Sky Survey
Ian D. McGreer, David J. Helfand, Richard L. White
We have conducted a pilot survey for z>3.5 quasars by combining the FIRST radio survey with the SDSS. While SDSS already targets FIRST sources for spectroscopy as quasar candidates…
Mass measurement of a single unseen star and planetary detection efficiency for OGLE 2007-BLG-050
V. Batista, Subo Dong, A. Gould +93
We analyze OGLE-2007-BLG-050, a high magnification microlensing event (A ~ 432) whose peak occurred on 2 May, 2007, with pronounced finite-source and parallax effects. We compute p…