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.

2FGL J1551.0-4636

Field

Detected Excesses

Swift-XRT image of the field for 2FGL J1551.0-4636 Swift-XRT detections in the field for 2FGL J1551.0-4636


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 51 00.85 -46 36 29.46 7.27 (5 ± 2) x 10-3 14 2.460 2.882
2 15 50 26.91 -46 42 32.78 8.27 (2.5 ± 1.2) x 10-3 7 2.310 2.155

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 2FGL J1551.0-4636 Swift-XRT image with known radio, optical and UV sources for 2FGL J1551.0-4636

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J155006.1-463701 15 50 06.12 -46 37 01.20 10.08 ROSAT
2 2RXS J155006.0-463916 15 50 06.19 -46 39 16.92 10.47 ROSAT
1RXS J155006.0-463921 15 50 06.00 -46 39 21.60 10.49 ROSAT
3 SACSTP J155054.0-462525 15 50 54.00 -46 25 24.96 11.19 SWIFT
4 SACSTP J154955.6-462427 15 49 55.61 -46 24 27.36 16.89 SWIFT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 MGPS J155049-463221 15 50 49.39 -46 32 21.84 4.86 MGPS2
[SPT2015] ATCA J1550-4632 15 50 49.90 -46 32 12.12 4.96 FER2FUSRID
[PME2013] J1550-4632 15 50 49.80 -46 32 12.12 4.96 AT2FGLUS
2 MGPS J155004-464031 15 50 04.90 -46 40 32.16 11.04 MGPS2
3 MGPS J155207-463225 15 52 07.80 -46 32 25.08 11.57 MGPS2

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