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 J1742.8-2246

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1742.8-2246 Swift-XRT detections in the field for 4FGL J1742.8-2246

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 17 43 15.89 -22 54 15.40 5.49 (3.1 ± 0.6) x 10-2 28 5.168 4.857

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 43 18.51 -22 48 13.87 8.27 (9 ± 4) x 10-3 8 2.653 2.641

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1742.8-2246 Swift-XRT image with known radio, optical and UV sources for 4FGL J1742.8-2246

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J174318.8-225055 17 43 18.86 -22 50 55.68 7.38 ROSAT
1RXS J174318.4-225108 17 43 18.41 -22 51 07.92 7.43 ROSAT
2 XMMSL2 J174315.9-225409 17 43 15.84 -22 54 08.64 9.33 XMM-NEWTON
1BMW 174316.0-225413 17 43 16.01 -22 54 13.32 9.41 ROSAT
1RXH J174316.3-225412 17 43 16.27 -22 54 12.24 9.43 ROSAT
3 1BMW 174245.5-223630 17 42 45.46 -22 36 30.24 10.00 ROSAT
4 2EG J1742-2250 17 42 06.00 -22 51 00.00 11.74 MGGAMMACAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
TGSSADR J174300.2-224439 17 43 00.19 -22 44 39.84 2.20 GMRTAS150M
1 NVSS J174300-224434 17 43 00.00 -22 44 35.16 2.24 NVSS
2 PMN J1743-2247 17 43 16.39 -22 47 45.96 5.39 PMN
TXS 1740-227 17 43 18.89 -22 48 21.96 6.11 TEXAS
3 NVSS J174319-224800 17 43 19.39 -22 48 00.00 6.13 NVSS
TGSSADR J174319.3-224807 17 43 19.30 -22 48 06.84 6.14 GMRTAS150M
4 NVSS J174318-224908 17 43 18.31 -22 49 09.12 6.30 NVSS
5 AS 239 17 43 25.68 -22 46 18.84 7.33 WACKERLING
6 NVSS J174256-225348 17 42 57.00 -22 53 48.84 7.54 NVSS
TGSSADR J174257.1-225348 17 42 57.19 -22 53 48.84 7.54 GMRTAS150M
7 V2110 OPH 17 43 33.22 -22 45 37.08 9.09 DUERBECK
V2110 Oph 17 43 33.36 -22 45 36.00 9.13 GCVS
CV J174333.3-224535 17 43 33.38 -22 45 35.28 9.13 CVCAT
8 NVSS J174312-223701 17 43 12.70 -22 37 00.84 10.25 NVSS
9 NVSS J174307-225707 17 43 07.90 -22 57 07.92 11.30 NVSS
10 NVSS J174253-225737 17 42 53.30 -22 57 38.16 11.32 NVSS
11 NVSS J174203-225146 17 42 03.91 -22 51 46.08 12.75 NVSS

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