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.

3FGL J0848.5+7018

Field

Detected Excesses
Swift-XRT image of the field for 3FGL J0848.5+7018 Swift-XRT detections in the field for 3FGL J0848.5+7018

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 08 49 58.50 +70 17 58.93 4.05 (3.6 ± 0.3) x 10-2 143 11.430 11.390
2 08 49 03.06 +70 16 25.09 5.76 (4.0 ± 1.2) x 10-3 22 3.571 3.405

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 08 51 29.20 +70 17 52.04 7.27 (2.3 ± 0.8) x 10-3 9 2.552 2.767
2 08 51 03.78 +70 16 24.86 7.09 (2.1 ± 0.8) x 10-3 10 2.559 2.611
3 08 48 43.15 +70 22 51.99 5.82 (2.5 ± 1.0) x 10-3 17 2.517 2.569
4 08 49 41.70 +70 30 59.10 5.96 (2.2 ± 0.9) x 10-3 10 2.265 2.347
5 08 47 54.94 +70 24 33.12 6.52 (1.7 ± 0.8) x 10-3 9 2.315 2.174
6 08 48 09.10 +70 26 16.11 6.04 (1.9 ± 0.9) x 10-3 14 2.584 2.139

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 3FGL J0848.5+7018 Swift-XRT image with known radio, optical and UV sources for 3FGL J0848.5+7018

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 NGC 2650 08 49 58.37 +70 17 57.84 7.32 ROSAT
1RXS J085001.4+701804 08 50 01.39 +70 18 04.68 7.58 ROSAT
1RXS J085001.4+701804 08 50 01.39 +70 18 03.96 7.58 ROSAT
1RXS J085001.4+701804 08 50 01.39 +70 18 04.32 7.58 ROSAT
1RXS J085001.4+701804 08 50 01.39 +70 18 03.96 7.58 ROSAT
2RXS J085001.7+701805 08 50 01.73 +70 18 05.04 7.61 ROSAT
2RXS J085001.7+701805 08 50 01.73 +70 18 05.04 7.61 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
0843+7028 08 48 36.41 +70 17 48.84 0.48 NORTH6CM
GB6 J0848+7017 08 48 39.19 +70 17 45.96 0.71 GB6
1 NVSS J084839+701727 08 48 39.60 +70 17 26.88 0.90 NVSS
TGSSADR J084839.6+701727 08 48 39.60 +70 17 27.96 0.90 GMRTAS150M
WN 0843.7+7028 08 48 38.90 +70 17 18.96 0.96 WENSS
2 NVSS J084835+702339 08 48 36.00 +70 23 39.84 5.63 NVSS
3 NVSS J084708+702204 08 47 08.71 +70 22 05.16 8.05 NVSS
4 GB6 J0850+7014 08 50 00.91 +70 13 59.88 8.57 GB6
GB6 J0846+7019 08 46 49.61 +70 19 41.88 8.74 GB6
TGSSADR J084959.7+701329 08 49 59.81 +70 13 28.92 8.74 GMRTAS150M
5 NVSS J084959+701329 08 49 59.81 +70 13 28.92 8.75 NVSS
VLSSr J084648.7+701925 08 46 48.70 +70 19 26.04 8.76 VLSSR
WN 0845.1+7024 08 50 00.41 +70 13 31.08 8.77 WENSS
VLSSr J085000.0+701327 08 50 00.00 +70 13 27.84 8.77 VLSSR
7C 084509.0+702450 08 50 01.80 +70 13 41.16 8.79 UC7C151MHZ
TGSSADR J084648.1+701928 08 46 48.10 +70 19 28.92 8.82 GMRTAS150M
6 NVSS J084648+701928 08 46 48.10 +70 19 27.84 8.82 NVSS
WN 0841.8+7030 08 46 47.81 +70 19 27.84 8.85 WENSS
7C 084152.6+703040 08 46 47.90 +70 19 41.88 8.88 UC7C151MHZ
TGSSADR J085010.1+701426 08 50 10.20 +70 14 26.88 9.08 GMRTAS150M
7 NVSS J085010+701422 08 50 10.39 +70 14 22.92 9.12 NVSS
8 8C 0841+705 08 46 43.39 +70 19 57.00 9.30 RRS8C38MHZ
9 NVSS J084903+700759 08 49 03.31 +70 07 59.16 10.41 NVSS
10 8C 0845+704 08 50 21.50 +70 13 15.96 10.45 RRS8C38MHZ
WN 0843.8+7040 08 48 44.90 +70 29 12.84 11.23 WENSS
11 NVSS J084845+702914 08 48 45.91 +70 29 15.00 11.26 NVSS
TGSSADR J084846.0+702917 08 48 46.10 +70 29 17.88 11.31 GMRTAS150M
TGSSADR J084859.5+700637 08 48 59.50 +70 06 38.16 11.66 GMRTAS150M
12 NVSS J084642+702524 08 46 42.70 +70 25 23.88 11.73 NVSS
13 NVSS J084900+700633 08 49 00.00 +70 06 33.12 11.75 NVSS
WN 0844.1+7017 08 48 59.90 +70 06 24.12 11.90 WENSS
14 NVSS J084639+700905 08 46 39.91 +70 09 05.04 13.01 NVSS

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