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 (3.8 ± 0.2) x 10-2 272 16.130 15.680
2 03 38 40.83 +13 07 23.51 4.83 (3.6 ± 0.8) x 10-3 39 5.126 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 56.66 +13 18 55.74 6.41 (1.3 ± 0.5) x 10-3 12 2.648 2.793
2 03 38 56.46 +13 12 53.18 5.53 (1.7 ± 0.6) x 10-3 28 3.064 2.785
3 03 39 38.92 +13 09 19.97 5.89 (1.2 ± 0.5) x 10-3 14 2.624 2.609
4 03 38 08.98 +13 12 01.09 5.82 (1.2 ± 0.5) x 10-3 18 2.544 2.554
5 03 38 12.58 +13 06 44.20 6.04 (1.1 ± 0.5) x 10-3 10 2.365 2.273

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

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J033839.7+130423 03 38 39.74 +13 04 23.16 10.04 ROSAT
2RXS J033839.7+130423 03 38 39.74 +13 04 23.16 10.04 ROSAT

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
TGSSADR J033832.2+131842 03 38 32.21 +13 18 42.84 7.01 GMRTAS150M
2 NVSS J033832+131855 03 38 32.50 +13 18 55.08 7.11 NVSS
3 NVSS J033918+131934 03 39 18.10 +13 19 35.04 8.34 NVSS
[SPT2015] VLA J0338+1302 03 38 29.30 +13 02 16.08 12.99 FER2FUSRID
4 NVSS J033829+130215 03 38 29.30 +13 02 15.00 13.00 NVSS
5 NVSS J033935+132456 03 39 34.99 +13 24 56.16 15.04 NVSS

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