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 J1728.1-1610

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J1728.1-1610 Swift-XRT detections in the field for 4FGL J1728.1-1610


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 17 28 11.54 -16 18 11.91 6.52 (2.6 ± 1.1) x 10-3 11 2.585 2.341

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1728.1-1610 Swift-XRT image with known radio, optical and UV sources for 4FGL J1728.1-1610


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 TGSSADR J172759.0-160909 17 27 59.11 -16 09 09.00 2.57 GMRTAS150M
2 NVSS J172749-161118 17 27 49.01 -16 11 17.88 5.00 NVSS
3 NVSS J172821-160433 17 28 21.31 -16 04 32.88 6.20 NVSS
4 PPM 718315 17 28 34.06 -16 05 09.60 7.71 PPM
5 807- 67 17 28 51.72 -16 05 09.96 11.32 NLTT
6 NVSS J172855-160257 17 28 55.80 -16 02 57.12 13.24 NVSS
7 NVSS J172846-155911 17 28 46.49 -15 59 11.04 14.07 NVSS
8 HD 158051 17 27 37.39 -15 58 02.64 14.20 HIC
PPM 233099 17 27 37.39 -15 58 02.28 14.20 PPM
HIP 85441 17 27 37.39 -15 58 02.28 14.21 HIPPARCOS
9 SAO 160569 17 28 55.80 -16 01 09.48 14.29 SAO
BD-15 4562 17 28 55.85 -16 01 09.84 14.29 ACRS
PPM 233124 17 28 55.85 -16 01 09.84 14.29 PPM

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