Swift-XRT Survey of Fermi Unassociated Sources


These results are part of the Swift program to follow-up Fermi unassociated sources in an attempt to find X-ray counterparts to the unidentified gamma-ray sources. As new observations are performed, these pages will be updated in nearly real time. Please use these results as a guide and proceed with caution when using them in a publication since they are the result of an automated analysis.

When using these data and results in publications, please reference M.C. Stroh & A.D. Falcone 2013, ApJS, 207, 28; arXiv: 1305.4949 for a description of many of the analysis techniques used to reduce these data (note: a more detailed paper describing the complete data set and analysis is forthcoming). Please contact Abe Falcone and Michael Stroh at unassociated@swift.psu.edu if you have any questions about the program or the analysis, or to simply to let us know that you've made use of these data.


Caution: For completeness, sources are listed if the "detection" exceeds 3 sigma. The significances and images are shown so you can make more stringent significance cuts, if desired.

1FGL J1509.7-0843

Field

Detected Excesses

Swift-XRT image of the field for 1FGL J1509.7-0843 Swift-XRT detections in the field for 1FGL J1509.7-0843

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 15 10 15.68 -08 37 39.21 6.78 (3.8 ± 1.2) x 10-3 12 3.179 3.182

Rejected Excesses (Due to Overlaps or SNR(Sosta) < 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 15 10 02.21 -08 44 56.89 6.65 (3.2 ± 1.2) x 10-3 11 3.019 2.728
2 15 09 59.09 -08 35 44.74 6.41 (3.0 ± 1.1) x 10-3 12 3.117 2.612

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 1FGL J1509.7-0843 Swift-XRT image with known radio, optical and UV sources for 1FGL J1509.7-0843


No known X-ray or gamma ray sources found.

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 682- 7 15 09 37.08 -08 41 34.44 3.11 NLTT
2 NVSS J150924-084824 15 09 24.00 -08 48 24.12 7.04 NVSS
3 NVSS J150933-085014 15 09 33.50 -08 50 15.00 7.09 NVSS
4 PGC 998239 15 09 45.70 -08 51 45.00 7.91 PGC2003
5 NVSS J150927-085027 15 09 27.70 -08 50 26.88 7.97 NVSS
6 PGC 998035 15 09 32.59 -08 52 44.04 9.47 PGC2003
PGC 997970 15 09 33.00 -08 53 03.84 9.75 PGC2003
7 NVSS J150941-083404 15 09 41.40 -08 34 04.08 9.83 NVSS
8 PPM 198314 15 10 23.26 -08 38 48.84 10.55 PPM
9 NVSS J150937-083314 15 09 37.99 -08 33 15.12 10.76 NVSS
10 NVSS J151001-085359 15 10 01.90 -08 54 00.00 10.93 NVSS
11 NVSS J151014-085309 15 10 14.71 -08 53 08.88 11.75 NVSS
12 NVSS J150858-083639 15 08 58.70 -08 36 38.88 13.67 NVSS
13 NVSS J150859-083455 15 08 59.81 -08 34 55.92 14.43 NVSS

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