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 J1822.9-4718

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J1822.9-4718 Swift-XRT detections in the field for 4FGL J1822.9-4718


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 18 23 59.04 -47 19 36.93 6.21 (3.4 ± 1.3) x 10-3 13 2.712 2.658
2 18 22 24.45 -47 25 06.30 7.97 (2.6 ± 1.1) x 10-3 7 2.268 2.362

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1822.9-4718 Swift-XRT image with known radio, optical and UV sources for 4FGL J1822.9-4718


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 SUMSS J182317-471603 18 23 17.59 -47 16 04.08 4.19 SUMSS
TGSSADR J182317.6-471603 18 23 17.71 -47 16 04.08 4.19 GMRTAS150M
GLEAM J182317-471558 18 23 17.50 -47 15 57.96 4.22 GLEAMEGCAT
2 PMN J1822-4718 18 22 29.90 -47 18 42.12 4.56 PMN
3 CD-4712234 18 22 17.57 -47 10 35.04 10.17 ACRS
SAO 228951 18 22 17.62 -47 10 34.32 10.17 SAO
PPM 324006 18 22 17.54 -47 10 35.04 10.17 PPM
4 PPM 763497 18 22 19.58 -47 27 46.80 11.39 PPM
5 SAO 228953 18 22 27.43 -47 28 42.60 11.55 SAO
CD-4712238 18 22 27.38 -47 28 42.96 11.55 ACRS
PPM 324008 18 22 27.31 -47 28 42.96 11.56 PPM
6 SUMSS J182404-470809 18 24 04.61 -47 08 08.88 15.35 SUMSS

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