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.

3FGL J2318.6-3829

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J2318.6-3829 Swift-XRT detections in the field for 3FGL J2318.6-3829

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 23 19 22.13 -38 26 12.98 4.40 (1.1 ± 0.2) x 10-2 64 7.312 7.127
2 23 18 32.16 -38 39 43.15 5.17 (4.4 ± 1.1) x 10-3 25 3.928 4.012

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 23 19 24.83 -38 29 44.83 5.59 (2.3 ± 0.8) x 10-3 18 2.848 2.953
2 23 19 31.58 -38 22 23.06 5.82 (1.8 ± 0.7) x 10-3 16 2.552 2.474
3 23 18 51.77 -38 27 19.73 5.35 (2.0 ± 0.8) x 10-3 18 2.561 2.348

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J2318.6-3829 Swift-XRT image with known radio, optical and UV sources for 3FGL J2318.6-3829


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 NVSS J231905-383342 23 19 05.81 -38 33 42.84 6.41 NVSS
2 NVSS J231823-383526 23 18 23.90 -38 35 26.16 6.43 NVSS
3 NVSS J231756-383103 23 17 56.71 -38 31 04.08 8.52 NVSS
4 NVSS J231754-382544 23 17 54.79 -38 25 44.04 9.70 NVSS
5 NVSS J231832-383946 23 18 32.11 -38 39 47.16 10.09 NVSS
TGSSADR J231832.1-383946 23 18 32.21 -38 39 47.16 10.09 GMRTAS150M
SUMSS J231832-383949 23 18 32.21 -38 39 50.04 10.13 SUMSS
GLEAM J231831-383949 23 18 31.70 -38 39 48.96 10.14 GLEAMEGCAT
6 NVSS J231926-383625 23 19 26.21 -38 36 24.84 11.23 NVSS
7 NVSS J231741-382715 23 17 41.90 -38 27 15.12 11.61 NVSS
8 NVSS J231843-381807 23 18 43.51 -38 18 06.84 11.71 NVSS

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