A CATALOG OF X-RAY POINT SOURCES FROM TWO MEGASECONDS OF CHANDRA OBSERVATIONS OF THE GALACTIC CENTER
- Muno, Michael P.
- Bauer, Franz E.
- Bandyopadhyay, R. M.
- Bower, Geoffrey C.
- Brandt, W. N.
- Broos, P. S.
- Cotera, A.
- Eikenberry, S. S.
- Garmire, Gordon P.
- Hyman, S. D.
- Kassim, N. E.
- Lang, C. C.
- Lazio, T. Joseph W.
- Law, J. C.
- Mauerhan, Jon C.
- Morris, M. R.
- Nagata, T.
- Nishiyama, S.
- Park, S.
- Ramìrez, S. V.
- Stolovy, S. R.
- Wijnands, R.
- Wang, Q. D.
- Wang, Z.
- Yusef-Zadeh, F.
- Baganoff, Frederick K
DOIAbstract
We present a catalog of 9017 X-ray sources identified in Chandra observations of a 2°× 0°.8 field around the Galactic center. This enlarges the number of known X-ray sources in the region by a factor of 2.5. The catalog incorporates all of the ACIS-I observations as of 2007 August, which total 2.25 Ms of exposure. At the distance to the Galactic center (8 kpc), we are sensitive to sources with luminosities of 4 × 10[superscript 32] erg s[superscript −1] (0.5–8.0 keV; 90% confidence) over an area of 1 deg2, and up to an order of magnitude more sensitive in the deepest exposure (1.0 Ms) around Sgr A*. The positions of 60% of our sources are accurate to <1 '' (95% confidence), and 20% have positions accurate to <0''.5. We search for variable s...
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