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.

4FGL J0137.3-3239

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J0137.3-3239 Swift-XRT detections in the field for 4FGL J0137.3-3239

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 01 37 24.71 -32 40 46.69 5.70 (1.8 ± 0.4) x 10-2 26 4.850 4.733

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J0137.3-3239 Swift-XRT image with known radio, optical and UV sources for 4FGL J0137.3-3239

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J013729.2-325102 01 37 29.21 -32 51 02.52 12.05 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
SUMSS J013724-324037 01 37 24.70 -32 40 37.92 1.60 SUMSS
QORG J013724.5-324039 01 37 24.50 -32 40 39.00 1.62 QORGCAT
1 NVSS J013724-324041 01 37 24.70 -32 40 41.88 1.67 NVSS
2 NVSS J013726-323414 01 37 26.40 -32 34 14.16 4.85 NVSS
3 WDS J01377-3236 01 37 42.00 -32 36 00.00 4.94 WDS
4 PPM 277194 01 37 44.83 -32 35 31.56 5.70 PPM
5 NVSS J013754-323646 01 37 54.91 -32 36 47.16 6.98 NVSS
6 PGC 689478 01 37 54.00 -32 34 59.88 7.58 PGC2003
7 NVSS J013759-323940 01 37 59.71 -32 39 39.96 7.65 NVSS
SUMSS J013759-323948 01 37 59.81 -32 39 47.88 7.66 SUMSS
GLEAM J013759-323924 01 38 00.00 -32 39 24.12 7.68 GLEAMEGCAT
8 PGC 689095 01 37 58.10 -32 36 21.96 7.75 PGC2003
9 NVSS J013707-323107 01 37 07.61 -32 31 08.04 8.60 NVSS
GLEAM J013707-323102 01 37 07.90 -32 31 03.00 8.65 GLEAMEGCAT
TGSSADR J013707.6-323102 01 37 07.61 -32 31 03.00 8.67 GMRTAS150M
SUMSS J013707-323103 01 37 07.51 -32 31 03.00 8.68 SUMSS
10 PGC 686164 01 37 41.90 -32 47 06.00 8.93 PGC2003
11 NVSS J013641-323627 01 36 41.30 -32 36 27.00 9.27 NVSS
SUMSS J013641-323626 01 36 41.30 -32 36 25.92 9.28 SUMSS
GLEAM J013641-323623 01 36 41.30 -32 36 24.12 9.28 GLEAMEGCAT
TGSSADR J013641.2-323625 01 36 41.21 -32 36 24.84 9.29 GMRTAS150M
12 A0135-3300 01 38 04.03 -32 44 45.96 10.26 ZCAT
13 NVSS J013806-324507 01 38 06.79 -32 45 06.84 10.93 NVSS
PGC 87862 01 38 06.60 -32 45 21.96 11.04 PGC2003
GLEAM J013659-324926 01 36 59.90 -32 49 26.04 11.52 GLEAMEGCAT
14 NVSS J013659-324925 01 36 59.21 -32 49 24.96 11.57 NVSS
TGSSADR J013659.4-324928 01 36 59.50 -32 49 27.84 11.59 GMRTAS150M
15 PGC 685940 01 37 59.11 -32 47 54.96 11.60 PGC2003
SUMSS J013659-324935 01 36 59.30 -32 49 35.04 11.71 SUMSS
GLEAM J013629-324639 01 36 29.81 -32 46 40.08 13.63 GLEAMEGCAT
16 NVSS J013629-324642 01 36 29.59 -32 46 41.88 13.69 NVSS
TGSSADR J013629.5-324642 01 36 29.50 -32 46 42.96 13.71 GMRTAS150M
SUMSS J013629-324644 01 36 29.50 -32 46 45.12 13.74 SUMSS

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