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 J0037.2-2653

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J0037.2-2653 Swift-XRT detections in the field for 4FGL J0037.2-2653

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 00 37 29.62 -26 50 43.71 5.53 (9 ± 2) x 10-3 27 4.846 4.599
2 00 36 51.34 -26 54 57.91 6.31 (5 ± 2) x 10-3 17 3.497 3.515

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 00 36 41.28 -26 59 10.85 7.09 (2.8 ± 1.1) x 10-3 9 2.550 2.507

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J0037.2-2653 Swift-XRT image with known radio, optical and UV sources for 4FGL J0037.2-2653

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J003728.4-265023 00 37 28.39 -26 50 22.92 4.31 ROSAT
2RXS J003728.2-265007 00 37 28.22 -26 50 07.44 4.48 ROSAT
2RXS J003728.2-265007 00 37 28.22 -26 50 07.44 4.48 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NSV 230 00 37 27.41 -26 55 18.84 3.21 GCVSNSVARS
2 NVSS J003655-265215 00 36 55.99 -26 52 14.88 4.52 NVSS
QORG J003655.9-265215 00 36 55.90 -26 52 14.88 4.53 QORGCAT
3 PGC 762416 00 36 51.50 -26 54 20.88 5.38 PGC2003
4 PGC 761613 00 36 56.71 -26 57 54.00 6.01 PGC2003
QORG J003644.5-265338 00 36 44.50 -26 53 38.04 6.88 QORGCAT
5 NVSS J003644-265335 00 36 44.30 -26 53 35.16 6.93 NVSS
6 OB-258 00 37 41.30 -26 57 29.88 7.01 DIXON
7 PGC 761536 00 37 43.70 -26 58 14.16 7.86 PGC2003
8 PGC 762174 00 36 39.10 -26 55 23.16 8.29 PGC2003
TGSSADR J003753.9-265551 00 37 54.00 -26 55 50.88 8.91 GMRTAS150M
GLEAM J003754-265546 00 37 54.10 -26 55 46.92 8.93 GLEAMEGCAT
9 NVSS J003754-265555 00 37 54.00 -26 55 55.92 8.95 NVSS
10 NVSS J003646-265949 00 36 46.30 -26 59 48.84 9.00 NVSS
11 NVSS J003742-270017 00 37 42.60 -27 00 16.92 9.06 NVSS
GLEAM J003733-270233 00 37 33.79 -27 02 34.08 9.89 GLEAMEGCAT
12 NVSS J003733-270237 00 37 33.60 -27 02 36.96 9.94 NVSS
TGSSADR J003733.6-270238 00 37 33.60 -27 02 38.04 9.95 GMRTAS150M
13 PGC 763827 00 37 53.21 -26 47 30.12 10.39 PGC2003
14 WDS J00378-2701 00 37 48.00 -27 01 00.12 10.40 WDS
15 PPM 243013 00 36 29.62 -26 50 50.28 10.56 PPM
CD-27 177 00 36 29.52 -26 50 49.56 10.58 ACRS
SAO 166407 00 36 29.30 -26 50 49.20 10.63 SAO
16 PPM 243042 00 37 48.50 -27 01 32.16 10.87 PPM
17 PGC 762765 00 38 05.21 -26 52 41.88 11.15 PGC2003
18 PGC 763142 00 38 03.91 -26 50 48.84 11.17 PGC2003
19 NVSS J003708-264218 00 37 08.69 -26 42 18.00 11.36 NVSS
20 NVSS J003640-264437 00 36 40.80 -26 44 36.96 11.81 NVSS
PMN J0036-2644 00 36 41.09 -26 44 26.88 11.89 PMN
21 NVSS J003753-270209 00 37 53.50 -27 02 09.96 12.10 NVSS
22 NVSS J003702-264136 00 37 02.71 -26 41 36.96 12.28 NVSS
23 PGC 764622 00 37 46.99 -26 43 27.84 12.32 PGC2003
24 NVSS J003621-265700 00 36 21.89 -26 56 60.00 12.40 NVSS
25 NVSS J003807-264757 00 38 07.61 -26 47 57.12 12.93 NVSS
QORG J003808.1-264758 00 38 08.11 -26 47 57.84 13.03 QORGCAT
TGSSADR J003631.3-264328 00 36 31.30 -26 43 27.84 14.08 GMRTAS150M
26 NVSS J003631-264325 00 36 31.51 -26 43 24.96 14.10 NVSS
GLEAM J003631-264326 00 36 31.30 -26 43 26.04 14.12 GLEAMEGCAT
27 PGC 764928 00 36 21.79 -26 42 02.88 16.60 PGC2003

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