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 J1649.8-3010

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J1649.8-3010 Swift-XRT detections in the field for 4FGL J1649.8-3010


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 16 50 38.98 -30 05 56.32 7.09 (2.7 ± 0.9) x 10-3 10 2.596 2.877
2 16 49 12.99 -30 14 05.00 5.96 (2.3 ± 0.9) x 10-3 15 2.496 2.410

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1649.8-3010 Swift-XRT image with known radio, optical and UV sources for 4FGL J1649.8-3010

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J165033.8-301915 16 50 33.82 -30 19 15.24 12.62 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 PPM 748064 16 49 47.06 -30 19 01.20 8.12 PPM
2 [SPT2015] ATCA J1649-3002 16 49 33.79 -30 02 29.04 9.13 FER2FUSRID
3 SAO 208082 16 50 30.72 -30 15 15.48 9.82 SAO
PPM 295538 16 50 30.65 -30 15 17.28 9.82 PPM
CD-3013517 16 50 30.65 -30 15 17.28 9.82 ACRS
4 NVSS J165035-300912 16 50 35.90 -30 09 12.96 10.08 NVSS
5 DQ Sco 16 49 17.54 -30 02 54.24 10.65 GCVS
ESO 164705-3014.8 16 50 16.80 -30 19 55.20 10.70 ESOUPPSALA
PC 13 16 50 16.94 -30 19 54.84 10.72 PLNEBULAE
6 NVSS J165017-301955 16 50 17.21 -30 19 55.92 10.76 NVSS
7 [SPT2015] ATCA J1648-3004 16 48 55.90 -30 04 24.96 13.38 FER2FUSRID
MGPS J165030-302200 16 50 30.70 -30 22 00.84 14.16 MGPS2
8 NVSS J165030-302206 16 50 30.29 -30 22 06.96 14.19 NVSS

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