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 J2151.2-4034

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J2151.2-4034 Swift-XRT detections in the field for 4FGL J2151.2-4034

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 21 51 41.68 -40 33 22.36 5.64 (3.4 ± 0.9) x 10-3 20 3.799 3.664
2 21 52 31.32 -40 34 25.39 9.05 (1.6 ± 0.5) x 10-2 8 2.408 3.162

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 21 51 48.49 -40 27 09.93 5.59 (1.3 ± 0.7) x 10-3 12 2.518 1.968
2 21 50 53.90 -40 43 25.15 6.12 (1.1 ± 0.6) x 10-3 10 2.264 1.861
3 21 50 38.55 -40 43 06.00 5.53 (1.7 ± 0.9) x 10-3 16 2.614 1.850
4 21 50 38.79 -40 43 17.35 5.53 (1.0 ± 0.7) x 10-3 16 2.300 1.425

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J2151.2-4034 Swift-XRT image with known radio, optical and UV sources for 4FGL J2151.2-4034

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J215142.0-403233 21 51 42.00 -40 32 33.36 5.11 ROSAT
2RXS J215142.0-403233 21 51 42.00 -40 32 33.36 5.11 ROSAT
2 2RXS J215216.2-402344 21 52 16.22 -40 23 44.52 15.45 ROSAT
2RXS J215216.2-402344 21 52 16.22 -40 23 44.52 15.45 ROSAT
1RXS J215215.8-402337 21 52 15.79 -40 23 36.96 15.48 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 Rns 57760 21 51 31.13 -40 32 57.12 3.04 CPSTARS
PPM 327640 21 51 31.13 -40 32 57.12 3.05 PPM
2 SUMSS J215122-403924 21 51 22.20 -40 39 24.12 5.27 SUMSS
GLEAM J215122-403929 21 51 22.80 -40 39 29.16 5.37 GLEAMEGCAT
3 PGC 584215 21 51 38.11 -40 37 46.92 5.40 PGC2003
4 GLEAM J215043-402852 21 50 43.39 -40 28 51.96 8.28 GLEAMEGCAT
SUMSS J215042-402854 21 50 42.50 -40 28 54.84 8.38 SUMSS
5 PGC 190617 21 51 25.61 -40 43 49.08 9.73 PGC2003
6 SUMSS J215028-403021 21 50 28.70 -40 30 20.88 9.90 SUMSS
7 PGC 583510 21 51 55.80 -40 41 30.84 10.40 PGC2003
8 PGC 586887 21 51 53.11 -40 23 40.92 12.64 PGC2003
9 SUMSS J215204-404412 21 52 04.61 -40 44 12.12 13.49 SUMSS
TGSSADR J215204.5-404414 21 52 04.61 -40 44 15.00 13.52 GMRTAS150M
GLEAM J215205-404420 21 52 04.99 -40 44 21.12 13.65 GLEAMEGCAT
10 QORG J215216.3-402337 21 52 16.30 -40 23 36.96 15.55 QORGCAT

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