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 J1335.5-4546

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1335.5-4546 Swift-XRT detections in the field for 4FGL J1335.5-4546

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 13 35 50.22 -45 37 12.64 5.96 (9 ± 2) x 10-3 19 4.065 3.837

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 36 03.15 -45 54 27.35 5.89 (4 ± 2) x 10-3 16 2.691 2.364
2 13 36 17.15 -45 51 55.50 5.59 (5 ± 2) x 10-3 18 2.559 2.230

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1335.5-4546 Swift-XRT image with known radio, optical and UV sources for 4FGL J1335.5-4546

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 XMMSL2 J133550.6-453715 13 35 50.66 -45 37 15.24 9.69 XMM-NEWTON
XMMSL2 J133550.6-453715 13 35 50.66 -45 37 15.24 9.69 XMM-NEWTON
2 2RXS J133554.6-453519 13 35 54.60 -45 35 19.68 11.74 ROSAT
2RXS J133554.6-453519 13 35 54.60 -45 35 19.68 11.74 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 SAO 224264 13 35 22.10 -45 43 24.60 3.40 SAO
PPM 318645 13 35 22.13 -45 43 23.88 3.40 PPM
CD-45 8556 13 35 22.10 -45 43 23.88 3.41 ACRS
2 A1332-4525 13 35 30.91 -45 40 19.20 6.04 ZCAT
3 PPM 759747 13 35 49.32 -45 40 34.32 6.55 PPM
4 PGC 520831 13 35 30.41 -45 57 03.96 10.71 PGC2003
5 ESO 133312-4539.0 13 36 14.16 -45 54 18.00 10.85 ESOUPPSALA
6 SAO 224266 13 35 30.31 -45 34 33.60 11.81 SAO
NN 13 35 30.31 -45 34 32.52 11.82 ACRS
PPM 318647 13 35 30.36 -45 34 32.16 11.83 PPM
7 PGC 47897 13 35 13.80 -45 57 56.88 12.00 PGC2003
8 PPM 759729 13 34 24.94 -45 43 11.64 12.08 PPM
ESO 133211-4542.7 13 35 12.96 -45 58 08.40 12.22 ESOUPPSALA
9 PPM 759754 13 36 39.19 -45 42 36.00 12.36 PPM
10 PPM 318638 13 34 55.34 -45 35 44.52 12.38 PPM
PGC 47894 13 35 13.10 -45 58 21.00 12.42 PGC2003
11 330- 8 13 36 25.32 -45 55 17.40 12.92 NLTT
12 WDS J13364-4556 13 36 24.00 -45 55 59.88 13.26 WDS

Penn State University Goddard Space Flight Center Swift