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.

3FGL J1544.1-2555

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J1544.1-2555 Swift-XRT detections in the field for 3FGL J1544.1-2555

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 15 43 43.60 -25 56 07.65 5.08 (7 ± 2) x 10-3 34 4.427 4.189

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 43 20.40 -25 47 58.84 6.78 (3.1 ± 1.1) x 10-3 12 2.865 2.816
2 15 44 15.42 -25 55 41.60 6.93 (2.9 ± 1.2) x 10-3 12 2.415 2.415
3 15 43 35.62 -25 56 31.09 6.41 (2.4 ± 1.0) x 10-3 10 2.351 2.293

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J1544.1-2555 Swift-XRT image with known radio, optical and UV sources for 3FGL J1544.1-2555


No known X-ray or gamma ray sources found.

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 SPASS J154410-255012 15 44 10.30 -25 50 12.84 5.08 SPASS2P3GH
2 NVSS J154346-255720 15 43 46.20 -25 57 20.16 5.09 NVSS
GLEAM J154412-255008 15 44 12.79 -25 50 08.88 5.26 GLEAMEGCAT
3 PMN J1544-2550 15 44 16.10 -25 50 17.88 5.36 PMN
TXS 1541-256 15 44 12.70 -25 50 02.04 5.37 TEXAS
TGSSADR J154412.6-255001 15 44 12.60 -25 50 02.04 5.37 GMRTAS150M
[SPT2015] ATCA J1544-2550 15 44 12.60 -25 50 00.96 5.37 FER2FUSRID
[PME2013] J1544-2550 15 44 12.70 -25 50 00.96 5.37 AT2FGLUS
4 NVSS J154412-255000 15 44 12.70 -25 50 00.96 5.38 NVSS
5 NVSS J154401-260150 15 44 01.80 -26 01 50.88 6.71 NVSS
TGSSADR J154401.7-260151 15 44 01.70 -26 01 50.88 6.72 GMRTAS150M
GLEAM J154402-260203 15 44 02.11 -26 02 03.84 6.91 GLEAMEGCAT
6 NVSS J154435-260324 15 44 35.90 -26 03 24.12 10.47 NVSS
7 NVSS J154433-254454 15 44 33.79 -25 44 53.88 11.98 NVSS

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