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 48.54 5.24 (7 ± 2) x 10-3 32 4.747 4.990
2 02 39 05.23 +13 27 28.35 4.83 (4.4 ± 1.3) x 10-3 34 3.530 3.382
3 02 39 12.58 +13 20 55.15 4.76 (4.3 ± 1.3) x 10-3 38 3.181 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 2.852 2.896
2 02 39 57.78 +13 33 50.51 6.04 (3.2 ± 1.3) x 10-3 12 2.504 2.496
3 02 40 07.69 +13 28 09.10 5.14 (2.2 ± 1.0) x 10-3 12 2.484 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 SWIFT J023905.6+132718 02 39 05.62 +13 27 18.36 6.68 SWIFT
2 2RXP J023858.5+131517 02 38 58.49 +13 15 16.92 12.00 ROSAT
SWIFT J023854.6+131549 02 38 54.60 +13 15 49.32 12.24 SWIFT
3 XMMSL2 J023853.7+131553 02 38 53.71 +13 15 52.92 12.35 XMM-NEWTON
XMMSL2 J023853.7+131553 02 38 53.71 +13 15 52.92 12.35 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
GB6 J0239+1327 02 39 26.50 +13 27 32.04 3.25 GB6
[SPT2015] VLA J0239+1327 02 39 27.19 +13 27 38.88 3.31 FER2FUSRID
1 NVSS J023927+132738 02 39 27.10 +13 27 38.16 3.31 NVSS
2 NVSS J023959+132124 02 39 59.81 +13 21 24.84 7.76 NVSS
3 NVSS J023853+132743 02 38 53.30 +13 27 42.84 9.61 NVSS
TGSSADR J023853.2+132744 02 38 53.30 +13 27 43.92 9.62 GMRTAS150M
GLEAM J023852+132750 02 38 52.39 +13 27 51.12 9.85 GLEAMEGCAT
4 NVSS J023932+133427 02 39 32.90 +13 34 27.84 10.06 NVSS
5 NVSS J023911+131431 02 39 11.40 +13 14 31.92 10.93 NVSS
6 NVSS J023857+133157 02 38 57.70 +13 31 58.08 10.95 NVSS
TGSSADR J023857.8+133200 02 38 57.79 +13 32 00.96 10.97 GMRTAS150M
GLEAM J023857+133200 02 38 57.19 +13 32 00.96 11.08 GLEAMEGCAT
GLEAM J023956+133356 02 39 56.59 +13 33 56.16 11.45 GLEAMEGCAT
7 NVSS J023956+133402 02 39 56.50 +13 34 01.92 11.52 NVSS
TGSSADR J023957.3+133355 02 39 57.29 +13 33 55.08 11.53 GMRTAS150M
8 TGSSADR J023954.9+133425 02 39 55.01 +13 34 24.96 11.64 GMRTAS150M

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