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 J0239.5+1324

Field

Detected Excesses

Swift-XRT image of the field for 1FGL J0239.5+1324 Swift-XRT detections in the field for 1FGL J0239.5+1324

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 02 38 54.38 +13 15 48.56 5.28 (7.0 ± 1.4) x 10-3 31 4.643 4.889
2 02 39 05.23 +13 27 28.35 4.83 (4.4 ± 1.3) x 10-3 34 3.531 3.382
3 02 39 12.58 +13 20 55.15 4.76 (4.3 ± 1.3) x 10-3 38 3.182 3.221

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 02 39 00.37 +13 16 25.64 5.14 (3.6 ± 1.2) x 10-3 23 2.854 2.896
2 02 39 57.78 +13 33 50.51 6.04 (3.2 ± 1.3) x 10-3 12 2.505 2.496
3 02 40 07.69 +13 28 09.10 5.14 (2.2 ± 1.0) x 10-3 12 2.485 2.144

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 1FGL J0239.5+1324 Swift-XRT image with known radio, optical and UV sources for 1FGL J0239.5+1324

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXP J023858.5+131517 02 38 58.49 +13 15 16.92 12.00 ROSAT
2 XMMSL1 J023854.0+131554 02 38 54.02 +13 15 53.64 12.29 XMM-NEWTON
2RXP J023853.8+131549 02 38 53.78 +13 15 48.96 12.39 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 470- 40A 02 39 31.70 +13 22 16.68 2.17 NLTT
470- 40B 02 39 31.70 +13 22 16.68 2.17 NLTT
2 PGC 1431214 02 39 34.80 +13 26 43.08 2.53 PGC2003
3 WDS J02396+1322 02 39 36.00 +13 22 00.12 2.78 WDS
GB6 J0239+1327 02 39 26.50 +13 27 32.04 3.25 GB6
4 NVSS J023927+132738 02 39 27.10 +13 27 38.16 3.31 NVSS
5 NVSS J023959+132124 02 39 59.81 +13 21 24.84 7.76 NVSS
6 NVSS J023853+132743 02 38 53.30 +13 27 42.84 9.62 NVSS
7 NVSS J023932+133427 02 39 32.90 +13 34 27.84 10.06 NVSS
QORG J023932.7+133432 02 39 32.71 +13 34 32.16 10.12 QORGCAT
8 PGC 1434803 02 39 21.00 +13 34 50.16 10.66 PGC2003
9 NVSS J023911+131431 02 39 11.40 +13 14 31.92 10.93 NVSS
10 NVSS J023857+133157 02 38 57.70 +13 31 58.08 10.95 NVSS
11 NVSS J023956+133402 02 39 56.50 +13 34 01.92 11.52 NVSS
12 QORG J023854.2+131549 02 38 54.19 +13 15 48.96 12.32 QORGCAT
13 PGC 1425702 02 40 14.40 +13 13 14.88 15.47 PGC2003

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