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 J1740.7-6750

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1740.7-6750 Swift-XRT detections in the field for 4FGL J1740.7-6750


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 40 59.66 -68 01 28.57 5.64 (3.5 ± 1.2) x 10-3 16 3.435 2.940
2 17 40 16.28 -68 05 20.25 5.82 (1.9 ± 0.9) x 10-3 9 2.547 2.238
3 17 40 25.83 -68 04 24.99 5.49 (2.0 ± 0.9) x 10-3 13 2.383 2.148

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1740.7-6750 Swift-XRT image with known radio, optical and UV sources for 4FGL J1740.7-6750

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J173927.7-674008 17 39 27.72 -67 40 08.76 12.66 ROSAT
2RXS J173927.7-674008 17 39 27.72 -67 40 08.76 12.66 ROSAT
1RXS J173927.4-674006 17 39 27.41 -67 40 05.88 12.72 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 PPM 362853 17 40 44.50 -67 51 14.76 0.71 PPM
HIP 86510 17 40 44.57 -67 51 14.76 0.71 HIPPARCOS
HD 159558 17 40 44.47 -67 51 14.76 0.71 HIC
SAO 253990 17 40 44.71 -67 51 15.48 0.72 SAO
2 PGC 290864 17 40 27.31 -67 52 09.84 2.28 PGC2003
3 [SPT2015] ATCA J1741-6754 17 41 26.11 -67 54 06.84 5.33 FER2FUSRID
[PME2013] J1741-6754 17 41 26.11 -67 54 06.84 5.33 AT2FGLUS
4 PPM 781675 17 41 57.41 -67 50 15.00 6.91 PPM
5 PPM 781662 17 39 46.03 -67 56 30.48 8.10 PPM
6 SUMSS J173911-675444 17 39 11.21 -67 54 43.92 9.71 SUMSS
7 CD-67 2124 17 38 49.56 -67 49 14.16 10.89 ACRS
PPM 362835 17 38 49.54 -67 49 14.16 10.89 PPM
8 SUMSS J173901-675542 17 39 01.99 -67 55 42.96 10.92 SUMSS
9 PPM 781674 17 41 56.38 -68 02 06.72 13.41 PPM
10 SUMSS J174246-673842 17 42 46.90 -67 38 42.00 16.59 SUMSS

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