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 J1541.2-5201

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1541.2-5201 Swift-XRT detections in the field for 4FGL J1541.2-5201


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 40 05.05 -52 05 56.88 7.48 (3.0 ± 1.0) x 10-3 10 2.633 2.934
2 15 41 44.15 -51 55 23.80 6.52 (3.5 ± 1.2) x 10-3 13 2.915 2.875

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1541.2-5201 Swift-XRT image with known radio, optical and UV sources for 4FGL J1541.2-5201

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1WGA J1541.0-5203 15 41 01.70 -52 03 15.12 3.21 ROSAT
2 1WGA J1541.0-5158 15 41 03.19 -51 58 17.04 3.73 ROSAT
3 1RXS J154101.8-520435 15 41 01.80 -52 04 35.04 4.16 ROSAT
4 1WGA J1541.8-5155 15 41 51.70 -51 55 48.72 7.52 ROSAT
5 2CXO J154205.6-520836 15 42 05.66 -52 08 36.60 10.39 CHANDRA
2RXP J154205.8-520836 15 42 05.74 -52 08 35.88 10.40 ROSAT
X154205.63-520838.1 15 42 05.64 -52 08 38.04 10.41 CHANDRA
1WGA J1542.0-5208 15 42 05.50 -52 08 42.00 10.44 ROSAT
X154207.14-520833.4 15 42 07.13 -52 08 33.36 10.52 CHANDRA
6 2CXO J154158.0-521014 15 41 58.01 -52 10 14.52 10.90 CHANDRA
4XMM J154158.3-521013 15 41 58.32 -52 10 14.16 10.92 XMM-NEWTON
7 1RXS J154205.9-520918 15 42 05.90 -52 09 18.36 10.93 ROSAT
8 4XMM J154148.9-521126 15 41 48.98 -52 11 26.16 11.25 XMM-NEWTON
Unknown 15 41 00.07 -52 12 29.88 11.58 EXOSAT
9 4XMM J154147.5-521204 15 41 47.50 -52 12 04.32 11.75 XMM-NEWTON
10 1WGA J1541.0-5212 15 41 00.19 -52 12 50.04 11.91 ROSAT
2RXP J154100.2-521249 15 41 00.14 -52 12 49.68 11.91 ROSAT
11 4XMM J154005.5-520553 15 40 05.54 -52 05 53.16 12.06 XMM-NEWTON
12 4XMM J154020.2-521021 15 40 20.26 -52 10 21.72 12.71 XMM-NEWTON
13 4XMM J154222.3-520941 15 42 22.32 -52 09 41.76 13.01 XMM-NEWTON
14 1WGA J1540.4-5150 15 40 24.79 -51 50 40.56 13.37 ROSAT
15 4XMM J154220.6-521119 15 42 20.66 -52 11 19.32 13.95 XMM-NEWTON
16 4XMM J154007.2-521250 15 40 07.25 -52 12 50.40 15.88 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 MGPS J154129-520132 15 41 29.59 -52 01 32.16 1.82 MGPS2
2 MGPS J154110-515714 15 41 10.90 -51 57 14.04 4.15 MGPS2
3 TGSSADR J154047.8-520432 15 40 47.81 -52 04 32.16 5.68 GMRTAS150M
MGPS J154048-520437 15 40 48.00 -52 04 37.92 5.71 MGPS2
4 PPM 772045 15 41 55.87 -52 02 47.04 6.04 PPM
5 TGSSADR J154048.7-515419 15 40 48.79 -51 54 20.16 8.25 GMRTAS150M
MGPS J154048-515417 15 40 48.89 -51 54 16.92 8.26 MGPS2
6 PPM 344082 15 42 10.51 -51 59 27.96 8.29 PPM
SAO 242848 15 42 10.58 -51 59 26.52 8.30 SAO
7 PMN J1540-5153 15 40 49.99 -51 53 33.00 8.81 PMN
8 MGPS J154127-515221 15 41 27.79 -51 52 21.00 9.02 MGPS2
9 QORG J154205.6-520837 15 42 05.59 -52 08 36.96 10.39 QORGCAT
SAO 242845 15 42 07.56 -52 08 21.84 10.44 SAO
PPM 344081 15 42 07.51 -52 08 22.92 10.44 PPM
10 PPM 344044 15 40 08.95 -51 59 26.16 10.77 PPM
SAO 242813 15 40 08.90 -51 59 24.36 10.78 SAO
-51:9352 15 40 07.13 -51 59 40.92 11.01 NLTT
11 PPM 344065 15 41 10.73 -51 50 04.56 11.22 PPM
SAO 242832 15 41 10.75 -51 50 04.56 11.22 SAO
12 MGPS J154151-521229 15 41 51.41 -52 12 29.88 12.37 MGPS2
13 MGPS J154056-514914 15 40 56.11 -51 49 14.88 12.46 MGPS2
TGSSADR J154235.7-521226 15 42 35.81 -52 12 25.92 16.38 GMRTAS150M

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