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 J1748.9-3923

Field

Detected Excesses

Swift-XRT image of the field for 2FGL J1748.9-3923 Swift-XRT detections in the field for 2FGL J1748.9-3923

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 17 49 17.55 -39 09 40.10 6.93 (5 ± 2) x 10-3 12 2.890 3.170
2 17 48 51.68 -39 25 42.63 5.59 (5 ± 2) x 10-3 22 3.293 3.159

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 2FGL J1748.9-3923 Swift-XRT image with known radio, optical and UV sources for 2FGL J1748.9-3923

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J174951.3-392333 17 49 51.31 -39 23 33.36 10.38 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 [PME2013] J1748-3921 17 48 52.99 -39 21 16.92 2.19 AT2FGLUS
[SPT2015] ATCA J1748-3921 17 48 52.99 -39 21 16.92 2.19 FER2FUSRID
MGPS J174928-392812 17 49 28.01 -39 28 12.00 7.66 MGPS2
2 NVSS J174927-392817 17 49 27.79 -39 28 17.04 7.69 NVSS
3 NVSS J174830-391728 17 48 30.41 -39 17 27.96 7.83 NVSS
MGPS J174830-391730 17 48 30.10 -39 17 30.12 7.85 MGPS2
4 NVSS J174952-392627 17 49 52.90 -39 26 27.96 11.14 NVSS
5 NVSS J174807-391537 17 48 07.80 -39 15 38.16 12.30 NVSS
6 NVSS J174958-391815 17 49 58.20 -39 18 15.12 12.75 NVSS
TGSSADR J174945.5-391418 17 49 45.50 -39 14 17.88 12.91 GMRTAS150M
MGPS J174945-391419 17 49 45.70 -39 14 20.04 12.91 MGPS2
7 NVSS J174945-391415 17 49 45.91 -39 14 15.00 12.99 NVSS
8 NVSS J174808-393413 17 48 08.30 -39 34 14.16 14.50 NVSS

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