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 J1725.1-1924

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J1725.1-1924 Swift-XRT detections in the field for 4FGL J1725.1-1924

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 17 25 49.01 -19 17 44.28 5.70 (10 ± 3) x 10-3 17 3.865 3.705

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 17 25 41.55 -19 33 22.16 7.27 (5 ± 2) x 10-3 10 2.767 2.588

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1725.1-1924 Swift-XRT image with known radio, optical and UV sources for 4FGL J1725.1-1924

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J172543.1-192251 17 25 43.15 -19 22 51.96 7.51 ROSAT
2 2RXS J172547.9-191757 17 25 47.93 -19 17 57.48 10.56 ROSAT
1RXS J172548.0-191758 17 25 48.00 -19 17 58.56 10.56 ROSAT
3 1RXS J172543.7-191555 17 25 43.70 -19 15 55.08 11.19 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J172459-192629 17 24 59.11 -19 26 30.12 3.77 NVSS
2 NVSS J172446-192453 17 24 46.90 -19 24 54.00 5.91 NVSS
3 NVSS J172448-192707 17 24 48.89 -19 27 06.84 6.16 NVSS
4 PPM 718291 17 24 57.67 -19 31 27.84 8.00 PPM
TGSSADR J172545.8-192206 17 25 45.79 -19 22 06.96 8.28 GMRTAS150M
5 NVSS J172545-192204 17 25 45.91 -19 22 05.16 8.31 NVSS
6 NVSS J172546-192850 17 25 46.39 -19 28 50.16 9.37 NVSS
7 WDS J17258-1918 AB,C 17 25 48.00 -19 18 00.00 10.55 WDS
WDS J17258-1918 AB 17 25 48.00 -19 18 00.00 10.55 WDS
BD-19 4627 17 25 48.79 -19 17 42.36 10.87 ACRS
PPM 233054 17 25 48.79 -19 17 42.00 10.87 PPM
SAO 160539 17 25 48.82 -19 17 41.64 10.88 SAO
TGSSADR J172601.6-192704 17 26 01.61 -19 27 03.96 12.09 GMRTAS150M
8 NVSS J172601-192701 17 26 01.70 -19 27 02.16 12.09 NVSS

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