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 J1905.8+4942

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J1905.8+4942 Swift-XRT detections in the field for 4FGL J1905.8+4942

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 19 05 49.44 +49 51 44.63 5.53 (5.4 ± 1.2) x 10-3 27 4.623 4.667
2 19 05 46.29 +49 44 54.28 5.59 (4.4 ± 1.2) x 10-3 26 3.897 3.791

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1905.8+4942 Swift-XRT image with known radio, optical and UV sources for 4FGL J1905.8+4942

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J190545.9+494453 19 05 45.91 +49 44 53.16 2.55 ROSAT
2RXS J190545.9+494453 19 05 45.91 +49 44 53.16 2.55 ROSAT
1RXS J190545.8+494455 19 05 45.79 +49 44 55.68 2.59 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 BD+49 2933 19 05 46.25 +49 44 57.12 2.58 ACRS
PPM 57845 19 05 46.25 +49 44 57.48 2.59 PPM
SAO 48081 19 05 46.10 +49 44 59.28 2.62 SAO
2 NVSS J190552+493916 19 05 52.80 +49 39 15.84 3.37 NVSS
WDS J19059+4939 AD 19 05 54.00 +49 38 60.00 3.64 WDS
WDS J19059+4939 AC 19 05 54.00 +49 38 60.00 3.64 WDS
WDS J19059+4939 AB 19 05 54.00 +49 38 60.00 3.64 WDS
3 NVSS J190604+493855 19 06 04.61 +49 38 56.04 4.14 NVSS
QORG J190604.8+493854 19 06 04.80 +49 38 53.88 4.18 QORGCAT
4 NVSS J190540+494634 19 05 40.01 +49 46 35.04 4.49 NVSS
5 NVSS J190618+493955 19 06 18.91 +49 39 55.08 4.96 NVSS
6 WDS J19063+4939 19 06 18.00 +49 38 60.00 5.41 WDS
7 NVSS J190533+493642 19 05 33.19 +49 36 42.12 6.77 NVSS
VLSSr J190524.9+495020 19 05 24.91 +49 50 21.12 8.97 VLSSR
TXS 1904+497 19 05 25.01 +49 50 25.08 9.02 TEXAS
8 NVSS J190524+495025 19 05 25.01 +49 50 26.16 9.04 NVSS
TGSSADR J190524.8+495025 19 05 24.91 +49 50 26.16 9.04 GMRTAS150M
WN 1904.1+4945 19 05 25.01 +49 50 26.16 9.04 WENSS
GB6 J1905+4950 19 05 23.59 +49 50 22.92 9.11 GB6
1904+4945 19 05 22.90 +49 50 22.92 9.18 NORTH20CM
1904+4945 19 05 22.90 +49 50 22.92 9.18 NORTH6CM
9 MITG J1905+4950 19 05 16.70 +49 50 02.04 9.47 MITGB6CM
10 NVSS J190650+493913 19 06 50.59 +49 39 12.96 9.89 NVSS
WN 1904.0+4928 19 05 18.70 +49 33 12.96 10.96 WENSS
11 NVSS J190518+493314 19 05 18.31 +49 33 15.12 10.97 NVSS
TGSSADR J190518.4+493311 19 05 18.50 +49 33 11.88 10.99 GMRTAS150M
QORG J190518.3+493311 19 05 18.31 +49 33 11.16 11.02 QORGCAT
12 NVSS J190443+494449 19 04 43.80 +49 44 48.84 11.44 NVSS
QORG J190439.4+493845 19 04 39.41 +49 38 44.88 12.57 QORGCAT
PGC 2349177 19 04 39.19 +49 38 45.96 12.59 PGC2003
13 NVSS J190439+493844 19 04 39.10 +49 38 44.16 12.62 NVSS
14 NVSS J190706+493731 19 07 06.50 +49 37 31.08 12.91 NVSS
TGSSADR J190706.5+493728 19 07 06.50 +49 37 27.84 12.93 GMRTAS150M
WN 1905.8+4932 19 07 06.79 +49 37 33.96 12.94 WENSS
15 NVSS J190441+494957 19 04 41.90 +49 49 57.00 13.66 NVSS
16 BD+49 2935 19 06 59.88 +49 32 24.72 14.86 ACRS
PPM 57872 19 06 59.90 +49 32 24.72 14.86 PPM
SAO 48103 19 06 59.98 +49 32 24.36 14.88 SAO
17 NVSS J190453+493049 19 04 52.99 +49 30 48.96 15.33 NVSS

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