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 J1654.2-4907c

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J1654.2-4907c Swift-XRT detections in the field for 4FGL J1654.2-4907c

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 16 54 56.08 -48 59 55.81 11.02 (2.2 ± 0.6) x 10-2 5 2.046 3.464

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1654.2-4907c Swift-XRT image with known radio, optical and UV sources for 4FGL J1654.2-4907c

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J165434.6-491455 16 54 34.61 -49 14 54.96 8.34 ROSAT
2 1RXS J165457.1-490026 16 54 57.10 -49 00 26.64 9.67 ROSAT
2RXS J165456.9-490024 16 54 57.00 -49 00 24.48 9.68 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 CD-4811271 16 54 13.97 -49 11 57.84 4.75 ACRS
PPM 322357 16 54 13.99 -49 11 58.56 4.76 PPM
SAO 227372 16 54 14.02 -49 11 58.56 4.76 SAO
2 SAO 227368 16 54 09.84 -49 01 45.48 5.53 SAO
PPM 322352 16 54 09.84 -49 01 44.40 5.54 PPM
CD-4811270 16 54 09.86 -49 01 43.32 5.56 ACRS
3 MGPS J165332-491909 16 53 32.90 -49 19 09.12 13.77 MGPS2
4 MGPS J165521-491901 16 55 21.50 -49 19 00.84 16.04 MGPS2

Penn State University Goddard Space Flight Center Swift