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 J1720.6+0708

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1720.6+0708 Swift-XRT detections in the field for 4FGL J1720.6+0708

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 17 21 36.89 +07 06 33.63 5.44 (2.7 ± 0.8) x 10-3 17 3.281 3.295

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 17 21 44.98 +07 11 48.32 5.64 (1.6 ± 0.6) x 10-3 13 2.548 2.601
2 17 21 37.31 +07 11 55.76 6.65 (1.3 ± 0.6) x 10-3 9 2.358 2.406

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1720.6+0708 Swift-XRT image with known radio, optical and UV sources for 4FGL J1720.6+0708


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 PPM 163841 17 20 40.46 +07 04 10.20 4.65 PPM
[SPT2015] VLA J1720+0708 17 20 57.91 +07 08 12.84 4.66 FER2FUSRID
BD+07 3341 17 20 40.46 +07 04 09.84 4.66 ACRS
2 NVSS J172058+070800 17 20 58.20 +07 07 59.88 4.76 NVSS
3 NVSS J172041+071423 17 20 41.71 +07 14 22.92 5.60 NVSS
4 NVSS J172102+070545 17 21 02.71 +07 05 45.96 6.54 NVSS
TGSSADR J172102.7+070546 17 21 02.71 +07 05 47.04 6.55 GMRTAS150M
[SPT2015] ATCA J1721+0705 17 21 02.71 +07 05 47.04 6.55 FER2FUSRID
[SPT2015] ATCA J1721+070A 17 21 10.99 +07 05 12.12 8.64 FER2FUSRID
5 NVSS J172111+070512 17 21 11.11 +07 05 12.12 8.68 NVSS
TGSSADR J172111.1+070512 17 21 11.21 +07 05 12.84 8.69 GMRTAS150M
6 V746 Oph 17 20 11.50 +07 15 00.72 9.27 GCVS
7 BD+07 3343 17 20 52.68 +07 17 54.96 9.69 ACRS
PPM 163847 17 20 52.68 +07 17 56.40 9.71 PPM
SAO 122297 17 20 52.63 +07 17 57.48 9.72 SAO
8 BD+07 3345 17 21 17.33 +07 13 15.24 10.42 ACRS
PPM 163860 17 21 17.35 +07 13 15.24 10.43 PPM
9 BD+07 3342 17 20 51.70 +07 18 52.92 10.53 ACRS
PPM 163846 17 20 51.79 +07 18 53.64 10.55 PPM
10 NVSS J172042+071936 17 20 42.50 +07 19 36.12 10.82 NVSS

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