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.

2FGL J0539.3-0323

Field

Detected Excesses
Swift-XRT image of the field for 2FGL J0539.3-0323 Swift-XRT detections in the field for 2FGL J0539.3-0323

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 05 39 31.00 -03 33 57.94 6.12 (3.3 ± 1.0) x 10-3 18 3.359 3.534
2 05 39 55.76 -03 19 39.89 6.21 (2.6 ± 0.9) x 10-3 14 3.053 3.011

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 05 39 43.71 -03 23 59.22 6.65 (2.0 ± 0.8) x 10-3 14 2.805 2.550

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 2FGL J0539.3-0323 Swift-XRT image with known radio, optical and UV sources for 2FGL J0539.3-0323

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 X053918.12-032831.9 05 39 18.12 -03 28 31.80 4.73 CHANDRA
CXOGSG J053918.1-032833 05 39 18.12 -03 28 33.24 4.75 CHANDRA
X053918.18-032833.5 05 39 18.19 -03 28 33.60 4.75 CHANDRA
2 X053927.10-033006.7 05 39 27.10 -03 30 06.84 6.60 CHANDRA
CXOGSG J053927.0-033006 05 39 27.91 -03 30 06.84 6.60 CHANDRA
3 CXOGSG J053941.2-032735 05 39 41.23 -03 27 35.28 6.67 CHANDRA
X053941.29-032735.0 05 39 41.28 -03 27 34.92 6.68 CHANDRA
4 CXO J053847.8-032223 05 38 47.81 -03 22 23.16 7.96 CHANDRA
5 CXOGSG J053913.6-033143 05 39 13.70 -03 31 42.96 8.02 CHANDRA
X053913.70-033143.3 05 39 13.70 -03 31 43.32 8.03 CHANDRA
6 CXOGSG J053914.9-033209 05 39 15.00 -03 32 09.60 8.41 CHANDRA
X053914.97-033209.7 05 39 14.98 -03 32 09.60 8.41 CHANDRA
7 X053950.32-032752.4 05 39 50.33 -03 27 52.56 8.77 CHANDRA
8 CXOGSG J053925.9-033253 05 39 25.94 -03 32 53.16 9.23 CHANDRA
X053925.95-033253.2 05 39 25.94 -03 32 53.16 9.23 CHANDRA
9 X053931.14-033353.1 05 39 31.15 -03 33 52.92 10.50 CHANDRA
CXO J053931.1-033353 05 39 31.15 -03 33 53.28 10.51 CHANDRA
null 05 39 31.20 -03 33 52.92 10.51 ROSAT
CXOGSG J053931.1-033353 05 39 31.15 -03 33 53.28 10.51 CHANDRA
2RXS J053930.8-033357 05 39 30.84 -03 33 57.96 10.56 ROSAT
2RXS J053930.8-033357 05 39 30.84 -03 33 57.96 10.56 ROSAT
1RXS J053930.6-033403 05 39 30.60 -03 34 03.00 10.63 ROSAT
10 CXOGSG J053939.1-033344 05 39 39.14 -03 33 43.92 11.10 CHANDRA
CXO J053939.1-033344 05 39 39.14 -03 33 44.28 11.10 CHANDRA
11 X053933.44-033446.9 05 39 33.43 -03 34 46.92 11.53 CHANDRA
12 CXOGSG J053936.3-033522 05 39 36.31 -03 35 22.20 12.32 CHANDRA
X053936.30-033522.2 05 39 36.31 -03 35 22.20 12.32 CHANDRA
13 1WGA J0540.0-0318 05 40 04.80 -03 18 57.60 12.38 ROSAT
14 X054006.81-033137.8 05 40 06.82 -03 31 37.92 14.23 CHANDRA
CXOGSG J054006.8-033138 05 40 06.89 -03 31 38.64 14.25 CHANDRA

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
GLEAM J053942-032731 05 39 43.01 -03 27 30.96 7.00 GLEAMEGCAT
TGSSADR J053942.7-032739 05 39 42.70 -03 27 38.88 7.03 GMRTAS150M
1 NVSS J053942-032740 05 39 42.70 -03 27 41.04 7.03 NVSS
2 NVSS J053911-033058 05 39 11.30 -03 30 59.04 7.43 NVSS
3 NVSS J053853-031826 05 38 53.59 -03 18 27.00 8.34 NVSS
4 NVSS J053928-031400 05 39 28.10 -03 14 00.96 10.05 NVSS
5 NVSS J053907-031343 05 39 07.39 -03 13 42.96 10.51 NVSS

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