A Point-Source Catalog from Swift Observations of Unidentified Fermi Sources

Details A Point-Source Catalog from Swift Observations of Unidentified Fermi Sources A Point-Source Catalog from Swift Observations of Unidentified Fermi Sources

2009-08-11

arxiv.org/abs/0908.1389v2

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

20 pages, 1 figure, 16 tables, version including Swift images of the Fermi error contours can be found at http://www.gae.ucm

Scientific paper

We present X-ray point source catalogs obtained from archival Swift observations that have partially or fully covered the 95% confidence error contour of unidentified Fermi sources. In total, 21 out of 37 unidentified Fermi sources have been observed by the X-Ray Telescope (XRT) on board the Swift observatory. Basic properties such as position, positional errors, count rates, and hardness ratios are derived for a total of 18 X-ray point sources found in the sample. From these detections, we discuss potential counterparts to 0FGL J0910.2-5044, 0FGL J1045.6-5937, 0FGL J1115.8-6108, 0FGL J1231.5-1410, 0FGL J1326.6-5302, 0FGL J1604.0-4904, and 0FGL J1805.3-2138. The catalog will assist observers planning future programs to identify 0FGL sources without obvious counterparts.

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