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 J1841.3-4442

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J1841.3-4442 Swift-XRT detections in the field for 4FGL J1841.3-4442

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 18 41 16.35 -44 45 15.90 5.82 (4.5 ± 1.4) x 10-3 22 3.506 3.212

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 41 33.07 -44 46 27.48 5.49 (2.9 ± 1.1) x 10-3 20 3.035 2.544

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1841.3-4442 Swift-XRT image with known radio, optical and UV sources for 4FGL J1841.3-4442


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 CGMW 4-2608 18 41 32.71 -44 45 51.84 4.36 CGMW
2 SUMSS J184122-444843 18 41 22.61 -44 48 42.84 6.72 SUMSS
3 WDS J18417-4448 18 41 42.00 -44 47 60.00 7.03 WDS
4 WDS J18414-4433 18 41 24.00 -44 32 60.00 9.02 WDS
5 SUMSS J184142-443328 18 41 42.31 -44 33 28.08 9.31 SUMSS
6 GLEAM J184131-445215 18 41 31.10 -44 52 14.88 10.39 GLEAMEGCAT
TGSSADR J184131.3-445215 18 41 31.30 -44 52 14.88 10.40 GMRTAS150M
SUMSS J184131-445217 18 41 31.39 -44 52 17.04 10.43 SUMSS
7 GLEAM J184211-443143 18 42 12.00 -44 31 44.04 13.68 GLEAMEGCAT
TGSSADR J184213.5-443151 18 42 13.61 -44 31 50.88 13.78 GMRTAS150M
SUMSS J184213-443147 18 42 13.61 -44 31 46.92 13.82 SUMSS
8 PGC 532761 18 40 19.39 -44 52 23.88 15.12 PGC2003
9 SUMSS J184227-443158 18 42 27.10 -44 31 58.08 15.43 SUMSS
GLEAM J184226-443140 18 42 26.90 -44 31 41.16 15.59 GLEAMEGCAT
10 PGC 532602 18 40 14.90 -44 53 17.88 16.32 PGC2003

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