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 J0658.4+0633

Field

Detected Excesses
Swift-XRT image of the field for 2FGL J0658.4+0633 Swift-XRT detections in the field for 2FGL J0658.4+0633

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 06 58 45.19 +06 37 09.83 4.31 (1.4 ± 0.2) x 10-2 87 8.565 8.509
2 06 58 46.79 +06 31 05.12 5.40 (2.6 ± 0.8) x 10-3 30 3.394 3.267
3 06 58 39.59 +06 38 59.16 5.70 (2.7 ± 0.9) x 10-3 16 3.131 3.102

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 06 58 48.33 +06 30 34.84 5.08 (1.9 ± 0.8) x 10-3 18 2.699 2.505
2 06 57 59.69 +06 42 34.31 5.17 (1.5 ± 0.7) x 10-3 17 2.887 2.259
3 06 58 07.84 +06 36 11.30 5.02 (1.7 ± 0.8) x 10-3 27 2.812 2.232
4 06 58 53.21 +06 38 30.31 6.21 (1.3 ± 0.6) x 10-3 12 2.257 2.163

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 2FGL J0658.4+0633 Swift-XRT image with known radio, optical and UV sources for 2FGL J0658.4+0633

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J065755.0+062444 06 57 55.39 +06 24 44.64 11.69 ROSAT
1RXS J065755.2+062431 06 57 55.20 +06 24 30.96 11.83 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J065810+063450 06 58 10.51 +06 34 50.88 4.37 NVSS
VLSSr J065810.2+063634 06 58 10.30 +06 36 33.84 5.26 VLSSR
TGSSADR J065809.2+063639 06 58 09.31 +06 36 38.88 5.51 GMRTAS150M
2 NVSS J065809+063636 06 58 09.10 +06 36 37.08 5.52 NVSS
[PME2013] J0658+0636 06 58 09.10 +06 36 42.84 5.58 AT2FGLUS
[SPT2015] ATCA J0658+0636 06 58 09.10 +06 36 45.00 5.60 FER2FUSRID
3 NVSS J065844+063711 06 58 45.00 +06 37 10.92 5.91 NVSS
[SPT2015] VLA J0658+0637 06 58 45.00 +06 37 12.00 5.92 FER2FUSRID
[PME2013] J0658+0637 06 58 44.90 +06 37 18.84 5.97 AT2FGLUS
4 NVSS J065900+063453 06 59 00.91 +06 34 54.12 8.56 NVSS
TGSSADR J065843.9+064049 06 58 43.90 +06 40 49.08 8.60 GMRTAS150M
5 NVSS J065844+064048 06 58 43.99 +06 40 49.08 8.60 NVSS
6 NVSS J065829+064302 06 58 29.59 +06 43 03.00 9.74 NVSS
7 NVSS J065847+062454 06 58 47.59 +06 24 55.08 9.85 NVSS
8 0655+0647 06 58 25.70 +06 43 24.96 10.09 NORTH6CM
GB6 J0658+0643 06 58 25.90 +06 43 27.84 10.14 GB6
9 NVSS J065856+064032 06 58 56.90 +06 40 32.16 10.35 NVSS
TGSSADR J065856.9+064039 06 58 56.90 +06 40 40.08 10.45 GMRTAS150M
TGSSADR J065822.7+064343 06 58 22.80 +06 43 44.04 10.45 GMRTAS150M
10 NVSS J065822+064346 06 58 22.90 +06 43 45.84 10.49 NVSS
TGSSADR J065846.4+062324 06 58 46.51 +06 23 24.00 11.04 GMRTAS150M
11 NVSS J065846+062323 06 58 46.39 +06 23 24.00 11.05 NVSS
12 NVSS J065909+063908 06 59 09.10 +06 39 07.92 11.97 NVSS
13 NVSS J065913+062947 06 59 13.10 +06 29 47.04 11.98 NVSS
TGSSADR J065913.1+062946 06 59 13.10 +06 29 45.96 12.00 GMRTAS150M
14 NVSS J065742+062456 06 57 42.00 +06 24 56.16 13.97 NVSS

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