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 J1956.6-7011

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1956.6-7011 Swift-XRT detections in the field for 4FGL J1956.6-7011

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 19 54 58.28 -70 18 19.46 5.49 (6 ± 2) x 10-3 20 3.821 3.705
2 19 56 39.83 -70 11 18.12 5.82 (6 ± 2) x 10-3 25 3.687 3.693
3 19 55 59.04 -70 17 04.30 6.21 (5 ± 2) x 10-3 20 3.254 3.355

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 10.26 -70 22 25.48 7.27 (2.4 ± 1.0) x 10-3 10 2.473 2.344
2 19 54 39.24 -70 12 56.31 6.52 (2.8 ± 1.2) x 10-3 9 2.442 2.268
3 19 57 00.54 -70 10 41.57 6.78 (2.7 ± 1.2) x 10-3 14 2.273 2.236

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1956.6-7011 Swift-XRT image with known radio, optical and UV sources for 4FGL J1956.6-7011


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 J195657-700807 19 56 57.60 -70 08 08.16 3.49 SUMSS
2 PPM 787685 19 55 46.58 -70 12 51.12 4.55 PPM
3 PPM 787684 19 55 39.91 -70 12 19.80 4.93 PPM
CD-70 1732 19 55 39.89 -70 12 19.80 4.93 ACRS
4 PPM 374416 19 54 53.42 -70 11 22.56 8.72 PPM
5 IC 4904 19 58 30.00 -70 10 59.88 9.64 NGC2000
6 SPASS J195439-700950 19 54 39.89 -70 09 51.12 9.95 SPASS2P3GH
7 ESO 195322-7019.1 19 58 38.40 -70 10 58.80 10.35 ESOUPPSALA
PGC 63913 19 58 38.90 -70 11 03.12 10.39 PGC2003
8 SUMSS J195448-700526 19 54 48.31 -70 05 26.16 10.79 SUMSS
9 PKS 1949-702 19 54 27.50 -70 09 56.16 10.98 DIXON
PKS J1954-7009 19 54 27.50 -70 09 56.16 10.98 PKSCAT90
10 GLEAM J195426-701038 19 54 26.30 -70 10 39.00 11.03 GLEAMEGCAT
QORG J195426.2-701040 19 54 26.21 -70 10 40.08 11.03 QORGCAT
SUMSS J195425-701037 19 54 25.39 -70 10 36.84 11.10 SUMSS
1949-703 19 54 24.70 -70 10 37.92 11.16 MRC
PMN J1954-7010 19 54 23.11 -70 10 46.92 11.29 PMN
ATPMN J195421.5-701024 19 54 21.50 -70 10 23.88 11.45 ATPMNCAT
11 SUMSS J195803-702011 19 58 03.29 -70 20 12.12 11.68 SUMSS
GLEAM J195802-702021 19 58 02.30 -70 20 21.12 11.76 GLEAMEGCAT
12 PGC 274124 19 54 28.61 -70 21 42.84 15.12 PGC2003

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