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 J1955.3-5032

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1955.3-5032 Swift-XRT detections in the field for 4FGL J1955.3-5032

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 19 55 12.38 -50 30 12.99 4.30 (2.7 ± 0.3) x 10-2 89 8.860 8.625
2 19 55 31.00 -50 33 40.81 6.41 (6 ± 2) x 10-3 19 3.813 3.932

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 19 54 49.28 -50 25 43.10 6.12 (3.1 ± 1.1) x 10-3 14 3.207 2.774
2 19 56 08.17 -50 29 32.28 7.09 (2.4 ± 1.0) x 10-3 9 2.488 2.395

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1955.3-5032 Swift-XRT image with known radio, optical and UV sources for 4FGL J1955.3-5032


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 J195512-503011 19 55 12.50 -50 30 11.16 2.49 SUMSS
2 SUMSS J195534-503434 19 55 34.30 -50 34 35.04 3.17 SUMSS
3 PGC 465812 19 54 46.80 -50 30 09.00 5.73 PGC2003
4 SUMSS J195535-503741 19 55 35.71 -50 37 41.16 5.86 SUMSS
5 SUMSS J195549-503650 19 55 49.01 -50 36 50.04 6.42 SUMSS
6 SUMSS J195452-504037 19 54 52.51 -50 40 36.84 9.33 SUMSS
7 SUMSS J195617-503514 19 56 17.11 -50 35 13.92 9.52 SUMSS
8 PGC 161795 19 54 58.51 -50 22 18.84 10.63 PGC2003
DENISP_G_J1954587-502218 19 54 58.70 -50 22 18.12 10.63 DENISIGAL
9 CD-5012717 19 54 13.13 -50 33 41.76 10.70 ACRS
PPM 348092 19 54 13.10 -50 33 41.76 10.70 PPM
SAO 246328 19 54 12.98 -50 33 41.40 10.72 SAO
10 PGC 463749 19 54 50.30 -50 42 43.92 11.37 PGC2003
11 V381 Tel 19 56 12.00 -50 43 46.20 14.07 GCVS

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