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 J0338.8+1313

Field

Detected Excesses

Swift-XRT image of the field for 1FGL J0338.8+1313 Swift-XRT detections in the field for 1FGL J0338.8+1313

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 03 38 29.20 +13 02 15.02 3.79 (4.6 ± 0.3) x 10-2 272 16.130 15.680
2 03 38 40.83 +13 07 23.51 4.83 (4.3 ± 0.9) x 10-3 39 5.155 4.694

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 03 38 56.46 +13 12 52.93 5.64 (1.7 ± 0.6) x 10-3 27 2.940 2.670
2 03 39 38.92 +13 09 19.97 5.89 (1.5 ± 0.6) x 10-3 14 2.645 2.609
3 03 38 08.98 +13 12 01.09 5.82 (1.5 ± 0.6) x 10-3 18 2.575 2.554
4 03 38 12.58 +13 06 44.20 6.12 (1.3 ± 0.6) x 10-3 10 2.380 2.310

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 1FGL J0338.8+1313 Swift-XRT image with known radio, optical and UV sources for 1FGL J0338.8+1313


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 NVSS J033858+130744 03 38 58.51 +13 07 44.04 6.29 NVSS
QORG J033858.4+130739 03 38 58.39 +13 07 39.00 6.37 QORGCAT
2 NVSS J033832+131855 03 38 32.50 +13 18 55.08 7.11 NVSS
3 SAO 93534 03 39 18.02 +13 17 46.32 7.20 SAO
PPM 119250 03 39 18.02 +13 17 47.40 7.21 PPM
BD+12 497 03 39 18.05 +13 17 47.40 7.22 ACRS
4 NVSS J033918+131934 03 39 18.10 +13 19 35.04 8.34 NVSS
5 PGC 1423765 03 39 22.80 +13 08 16.08 9.15 PGC2003
6 PGC 90687 03 39 28.30 +13 23 35.16 12.94 PGC2003
7 NVSS J033829+130215 03 38 29.30 +13 02 15.00 13.00 NVSS
QORG J033829.3+130214 03 38 29.30 +13 02 13.92 13.01 QORGCAT
8 NVSS J033935+132456 03 39 34.99 +13 24 56.16 15.04 NVSS

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