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 J1526.6-2743

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1526.6-2743 Swift-XRT detections in the field for 4FGL J1526.6-2743


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 27 25.34 -27 34 57.75 6.93 (2.9 ± 1.1) x 10-3 11 2.629 2.711
2 15 26 20.83 -27 48 07.37 6.78 (2.9 ± 1.2) x 10-3 11 2.616 2.431
3 15 26 21.76 -27 33 51.22 6.78 (1.9 ± 0.9) x 10-3 9 2.449 2.020

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1526.6-2743 Swift-XRT image with known radio, optical and UV sources for 4FGL J1526.6-2743

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J152649.7-273833 15 26 49.78 -27 38 33.36 5.74 ROSAT
2RXS J152649.7-273833 15 26 49.78 -27 38 33.36 5.74 ROSAT
1RXS J152649.8-273832 15 26 49.80 -27 38 32.64 5.76 ROSAT
2 2RXS J152623.6-275036 15 26 23.66 -27 50 36.24 7.67 ROSAT
2RXS J152623.6-275036 15 26 23.66 -27 50 36.24 7.67 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J152634-274116 15 26 34.30 -27 41 17.16 3.08 NVSS
GLEAM J152641-274739 15 26 40.99 -27 47 39.12 3.69 GLEAMEGCAT
2 NVSS J152640-274740 15 26 40.80 -27 47 39.84 3.71 NVSS
TXS 1523-276 15 26 40.90 -27 47 40.92 3.73 TEXAS
TGSSADR J152640.8-274743 15 26 40.90 -27 47 44.16 3.77 GMRTAS150M
3 PMN J1526-2748 15 26 36.50 -27 48 05.04 4.24 PMN
SPASS J152635-274805 15 26 35.71 -27 48 05.04 4.29 SPASS2P3GH
4 PPM 732143 15 26 42.26 -27 49 05.16 5.13 PPM
5 NVSS J152705-274344 15 27 05.50 -27 43 45.12 5.43 NVSS
QORG J152620.8-274810 15 26 20.81 -27 48 10.08 6.14 QORGCAT
6 NVSS J152620-274811 15 26 20.81 -27 48 11.16 6.16 NVSS
GLEAM J152619-274759 15 26 19.80 -27 47 58.92 6.18 GLEAMEGCAT
TGSSADR J152620.7-274813 15 26 20.81 -27 48 14.04 6.19 GMRTAS150M
TGSSADR J152613.8-274719 15 26 13.80 -27 47 20.04 6.89 GMRTAS150M
7 NVSS J152613-274720 15 26 13.80 -27 47 21.12 6.91 NVSS
8 NVSS J152713-273855 15 27 13.49 -27 38 56.04 8.78 NVSS
9 NVSS J152655-275407 15 26 55.80 -27 54 07.92 10.68 NVSS
10 NVSS J152719-275157 15 27 19.20 -27 51 57.96 11.63 NVSS
QORG J152719.4-275158 15 27 19.39 -27 51 57.96 11.67 QORGCAT
11 PGC 749503 15 27 32.30 -27 48 55.08 12.38 PGC2003
12 NVSS J152548-274851 15 25 48.19 -27 48 51.84 12.67 NVSS
13 NVSS J152725-273458 15 27 25.30 -27 34 59.16 13.30 NVSS
14 NVSS J152605-275508 15 26 05.50 -27 55 09.12 13.66 NVSS

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