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 J1839.0-0102

Field

Detected Excesses

Swift-XRT image of the field for 2FGL J1839.0-0102 Swift-XRT detections in the field for 2FGL J1839.0-0102

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 18 38 33.18 -01 10 51.88 6.41 (2.4 ± 0.6) x 10-2 17 3.798 3.868
2 18 39 07.14 -01 05 55.91 6.93 (6 ± 2) x 10-3 15 3.402 3.431

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 18 38 58.47 -01 06 42.59 7.97 (3.2 ± 1.3) x 10-3 9 2.312 2.458
2 18 38 26.06 -00 56 34.56 6.31 (2.6 ± 1.4) x 10-3 11 2.338 1.849

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 2FGL J1839.0-0102 Swift-XRT image with known radio, optical and UV sources for 2FGL J1839.0-0102

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J183822.3-010653 18 38 22.32 -01 06 53.28 11.34 ROSAT
1RXS J183822.2-010652 18 38 22.20 -01 06 51.84 11.36 ROSAT
2 null 18 38 19.10 -01 06 47.88 12.04 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J183912-005939 18 39 12.91 -00 59 39.84 3.40 NVSS
[PME2013] J1839-0059 18 39 13.01 -00 59 35.88 3.47 AT2FGLUS
[SPT2015] ATCA J1839-0059 18 39 13.01 -00 59 35.88 3.47 FER2FUSRID
2 NVSS J183923-005858 18 39 23.21 -00 58 58.08 5.84 NVSS
3 NVSS J183840-010515 18 38 40.70 -01 05 15.00 6.50 NVSS
4 PSR J1838-0107 18 38 39.41 -01 07 49.08 8.28 ATNFPULSAR
5 PSR J1838-01 18 38 30.00 -01 01 00.12 8.44 ATNFPULSAR
6 NVSS J183825-010534 18 38 25.80 -01 05 34.08 10.02 NVSS
7 NVSS J183905-011333 18 39 05.81 -01 13 32.88 11.45 NVSS
VLSSr J183846.5-011326 18 38 46.49 -01 13 26.04 12.09 VLSSR
TGSSADR J183846.1-011326 18 38 46.20 -01 13 27.12 12.12 GMRTAS150M
8 NVSS J183846-011327 18 38 46.20 -01 13 27.84 12.13 NVSS
9 NVSS J183945-005146 18 39 45.10 -00 51 47.16 14.66 NVSS

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