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.

1FGL J1721.1+0713

Field

Detected Excesses

Swift-XRT image of the field for 1FGL J1721.1+0713 Swift-XRT detections in the field for 1FGL J1721.1+0713

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 17 21 36.30 +07 06 34.91 5.31 (2.2 ± 0.7) x 10-3 24 3.186 3.442

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 12.01 +07 10 15.65 5.14 (1.9 ± 0.6) x 10-3 34 2.905 2.935
2 17 21 37.20 +07 11 41.69 5.59 (1.6 ± 0.6) x 10-3 20 2.872 2.823
3 17 21 44.96 +07 11 50.39 5.53 (1.3 ± 0.5) x 10-3 18 2.872 2.536

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 1FGL J1721.1+0713 Swift-XRT image with known radio, optical and UV sources for 1FGL J1721.1+0713


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 BD+07 3345 17 21 17.33 +07 13 15.24 2.05 ACRS
PPM 163860 17 21 17.35 +07 13 15.24 2.05 PPM
2 NVSS J172058+070800 17 20 58.20 +07 07 59.88 5.79 NVSS
3 BD+07 3343 17 20 52.68 +07 17 54.96 6.29 ACRS
PPM 163847 17 20 52.68 +07 17 56.40 6.31 PPM
SAO 122297 17 20 52.63 +07 17 57.48 6.33 SAO
4 NVSS J172041+071423 17 20 41.71 +07 14 22.92 6.92 NVSS
5 PPM 163846 17 20 51.79 +07 18 53.64 7.20 PPM
BD+07 3342 17 20 51.70 +07 18 52.92 7.20 ACRS
6 NVSS J172102+070545 17 21 02.71 +07 05 45.96 7.52 NVSS
7 NVSS J172111+070512 17 21 11.11 +07 05 12.12 7.93 NVSS
8 NVSS J172144+071210 17 21 44.40 +07 12 10.08 8.81 NVSS
9 NVSS J172042+071936 17 20 42.50 +07 19 36.12 9.25 NVSS
10 NVSS J172037+072105 17 20 37.80 +07 21 06.12 11.14 NVSS
11 PPM 163841 17 20 40.46 +07 04 10.20 11.42 PPM
BD+07 3341 17 20 40.46 +07 04 09.84 11.43 ACRS
12 BD+07 3344 17 20 56.95 +07 24 14.76 11.53 ACRS
PPM 163851 17 20 56.93 +07 24 15.12 11.54 PPM
SAO 122299 17 20 56.95 +07 24 16.20 11.55 SAO
13 NVSS J172145+072028 17 21 45.50 +07 20 29.04 11.64 NVSS
14 NVSS J172136+070256 17 21 36.50 +07 02 57.12 12.24 NVSS
15 NVSS J172154+071940 17 21 54.31 +07 19 41.16 12.98 NVSS

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