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 J1338.8-4509

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1338.8-4509 Swift-XRT detections in the field for 4FGL J1338.8-4509


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 13 38 23.60 -45 06 48.45 5.59 (3.1 ± 1.1) x 10-3 17 2.971 2.777
2 13 39 41.65 -45 13 36.86 6.12 (2.7 ± 1.0) x 10-3 11 2.781 2.655
3 13 39 24.37 -45 05 41.54 6.52 (2.5 ± 1.0) x 10-3 11 2.661 2.599
4 13 39 16.73 -45 02 59.82 6.12 (1.8 ± 0.9) x 10-3 12 2.294 2.036
5 13 39 07.75 -45 09 31.37 5.89 (1.8 ± 0.9) x 10-3 23 2.480 1.947

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1338.8-4509 Swift-XRT image with known radio, optical and UV sources for 4FGL J1338.8-4509


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 PGC 529386 13 38 47.21 -45 11 52.08 2.24 PGC2003
2 L 402-167 13 39 13.27 -45 04 12.36 6.71 NLTT
3 V747 Cen 13 39 23.76 -45 05 54.24 6.77 GCVS
PPM 318706 13 39 23.76 -45 05 54.24 6.77 PPM
4 TGSSADR J133812.9-451019 13 38 12.89 -45 10 18.84 7.00 GMRTAS150M
SUMSS J133812-451017 13 38 12.79 -45 10 18.12 7.02 SUMSS
5 TGSSADR J133910.7-451712 13 39 10.70 -45 17 12.12 8.03 GMRTAS150M
QORG J133911.0-451711 13 39 10.99 -45 17 11.04 8.04 QORGCAT
SUMSS J133910-451713 13 39 10.80 -45 17 12.84 8.06 SUMSS
6 PPM 318695 13 38 45.91 -45 19 30.00 9.74 PPM
7 PGC 530696 13 38 03.79 -45 04 19.92 10.21 PGC2003
8 PPM 759801 13 39 52.66 -45 03 56.52 12.13 PPM
9 TGSSADR J133802.1-451809 13 38 02.21 -45 18 09.00 12.16 GMRTAS150M
10 SUMSS J133941-450103 13 39 41.11 -45 01 04.08 12.26 SUMSS
SUMSS J133800-451803 13 38 00.79 -45 18 02.88 12.27 SUMSS
PGC 528232 13 38 00.41 -45 17 60.00 12.29 PGC2003
ABELL738S 13 38 00.02 -45 17 58.92 12.33 ABELL
TGSSADR J133941.3-450058 13 39 41.30 -45 00 57.96 12.35 GMRTAS150M
11 TGSSADR J133746.3-451638 13 37 46.30 -45 16 39.00 13.51 GMRTAS150M
SUMSS J133746-451637 13 37 46.20 -45 16 37.92 13.51 SUMSS
12 PGC 528073 13 37 45.00 -45 18 51.84 14.93 PGC2003

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