AAS 201st Meeting, January, 2003
Session 85. X-Rays
Poster, Wednesday, January 8, 2003, 9:20am-6:30pm, Exhibit Hall AB

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[85.02] X-ray Properties of Optical Sources in the Lockman Hole - Northwest

A. T. Steffen, A. J. Barger (Department of Astronomy, University of Wisconsin - Madison), P. Capak, L. L. Cowie (Institute for Astronomy, University of Hawaii), K. D. Kuntz (Department of Physics, University of Maryland Baltimore County), R. F. Mushotzky (NASA Goddard Space Flight Center), Y. Yang (Department of Astronomy, University of Maryland)

We present Chandra X-ray observations of optical sources in the Lockman Hole - Northwest. Our nine moderately deep (~ 40 ks) Chandra pointings cover an area of 0.36 deg2 to a depth of 2 x 10-15 erg cm-2 s-1 in the soft band (0.5 - 2 keV) and 1.5 x 10-14 erg cm-2 s-1 in the hard band (2 - 8 keV). Using deep BVRIz observations from Subaru's Suprime-CAM we group the optical sources by their observed properties (i.e., magnitude, color, etc...). We use a stacking procedure to measure the X-ray properties of each group of optical sources.

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Bulletin of the American Astronomical Society, 34, #4
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