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 J1925.4-3811

Field

Detected Excesses

Swift-XRT image of the field for 1FGL J1925.4-3811 Swift-XRT detections in the field for 1FGL J1925.4-3811


No detected excesses found.

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 25 32.00 -38 02 35.47 6.93 (2.0 ± 0.9) x 10-3 8 2.436 2.353
2 19 26 02.09 -38 07 04.95 5.89 (2.2 ± 1.0) x 10-3 14 2.496 2.248

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 1FGL J1925.4-3811 Swift-XRT image with known radio, optical and UV sources for 1FGL J1925.4-3811


No known X-ray or gamma ray sources found.

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J192535-381331 19 25 35.11 -38 13 32.16 2.70 NVSS
SUMSS J192534-381339 19 25 34.51 -38 13 39.00 2.73 SUMSS
2 NVSS J192511-381059 19 25 11.90 -38 10 59.16 2.97 NVSS
SUMSS J192541-381217 19 25 41.50 -38 12 18.00 3.02 SUMSS
3 NVSS J192541-381217 19 25 41.50 -38 12 16.92 3.02 NVSS
4 NVSS J192516-381411 19 25 16.70 -38 14 12.12 3.45 NVSS
SUMSS J192544-381618 19 25 44.21 -38 16 18.84 6.00 SUMSS
5 NVSS J192544-381625 19 25 44.50 -38 16 24.96 6.12 NVSS
6 NVSS J192527-382155 19 25 27.50 -38 21 56.16 10.55 NVSS
SUMSS J192558-382031 19 25 58.61 -38 20 31.92 11.07 SUMSS
TGSSADR J192558.4-382034 19 25 58.51 -38 20 34.08 11.09 GMRTAS150M
7 NVSS J192558-382033 19 25 58.61 -38 20 34.08 11.11 NVSS
GLEAM J192559-382035 19 25 59.30 -38 20 35.16 11.20 GLEAMEGCAT

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