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.

1FGL J1903.8-3718c

Field

Detected Excesses

Swift-XRT image of the field for 1FGL J1903.8-3718c Swift-XRT detections in the field for 1FGL J1903.8-3718c

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 19 03 15.88 -37 14 07.64 5.20 (1.5 ± 0.3) x 10-2 36 5.893 5.678

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 19 03 07.14 -37 12 55.57 7.48 (2.4 ± 1.2) x 10-3 9 2.237 2.023

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 1FGL J1903.8-3718c Swift-XRT image with known radio, optical and UV sources for 1FGL J1903.8-3718c

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXP J190316.1-371354 19 03 16.30 -37 13 54.84 8.51 ROSAT
2 1WGA J1903.2-3713 19 03 14.40 -37 13 31.44 9.00 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J190411-371505 19 04 11.90 -37 15 05.04 5.25 NVSS
2 NVSS J190323-371810 19 03 23.21 -37 18 11.16 5.74 NVSS
3 NVSS J190437-371759 19 04 37.01 -37 17 60.00 8.97 NVSS
SUMSS J190437-371749 19 04 37.10 -37 17 48.84 8.99 SUMSS
[PME2013] J1904-3715 19 04 39.60 -37 15 43.92 9.86 AT2FGLUS
4 NVSS J190439-371538 19 04 39.60 -37 15 38.88 9.90 NVSS
[SPT2015] ATCA J1904-3715 19 04 40.01 -37 15 42.12 9.96 FER2FUSRID
5 NVSS J190405-372815 19 04 05.11 -37 28 14.88 10.07 NVSS
6 [PME2013] J1904-3717 19 04 44.59 -37 17 57.84 10.47 AT2FGLUS
TGSSADR J190354.2-372900 19 03 54.31 -37 29 00.96 10.49 GMRTAS150M
[SPT2015] ATCA J1904-3717 19 04 44.71 -37 17 56.04 10.50 FER2FUSRID
7 NVSS J190354-372903 19 03 54.41 -37 29 03.12 10.54 NVSS
SUMSS J190354-372905 19 03 54.10 -37 29 04.92 10.57 SUMSS
8 NVSS J190302-371249 19 03 02.30 -37 12 50.04 11.42 NVSS
SUMSS J190302-371251 19 03 01.99 -37 12 51.84 11.45 SUMSS
TGSSADR J190302.0-371243 19 03 01.99 -37 12 43.92 11.51 GMRTAS150M
GLEAM J190300-371245 19 03 01.01 -37 12 46.08 11.68 GLEAMEGCAT
9 NVSS J190426-373020 19 04 26.21 -37 30 20.16 13.62 NVSS

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