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 J1542.1-5901

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1542.1-5901 Swift-XRT detections in the field for 4FGL J1542.1-5901


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 15 42 42.89 -59 00 49.80 9.05 (4 ± 2) x 10-3 8 2.376 2.358
2 15 41 09.67 -59 12 34.18 6.65 (4 ± 2) x 10-3 10 2.216 2.168
3 15 40 52.55 -59 08 55.22 6.93 (3 ± 2) x 10-3 8 2.412 1.946
4 15 40 52.61 -59 09 55.53 6.52 (2 ± 2) x 10-3 8 2.412 1.640

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1542.1-5901 Swift-XRT image with known radio, optical and UV sources for 4FGL J1542.1-5901

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J154328.0-585500 15 43 28.01 -58 55 00.12 12.05 ROSAT
2RXS J154328.1-585500 15 43 28.10 -58 55 00.48 12.05 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 WZ Nor 15 41 56.93 -59 08 11.76 6.96 GCVS
2 MGPS J154251-590726 15 42 51.10 -59 07 26.04 8.11 MGPS2
3 SAO 242850 15 42 51.91 -58 53 25.44 9.73 SAO
CD-58 6141 15 42 52.03 -58 53 25.80 9.73 ACRS
PPM 344092 15 42 52.01 -58 53 25.44 9.73 PPM
4 Rns 39760 15 43 28.27 -59 03 27.36 10.42 CPSTARS
5 MGPS J154045-590335 15 40 45.19 -59 03 36.00 10.99 MGPS2
6 CD-58 6124 15 41 09.72 -59 09 48.24 11.32 ACRS
PPM 344064 15 41 09.70 -59 09 48.24 11.32 PPM
SAO 242826 15 41 09.65 -59 09 47.88 11.32 SAO
7 MGPS J154208-584931 15 42 08.71 -58 49 31.08 11.89 MGPS2

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