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 J1335.0-5656

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J1335.0-5656 Swift-XRT detections in the field for 4FGL J1335.0-5656

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 13 34 33.40 -57 03 17.10 9.05 (9 ± 2) x 10-3 8 2.575 4.123

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 31.45 -57 00 12.75 7.09 (3 ± 2) x 10-3 7 2.420 2.001

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1335.0-5656 Swift-XRT image with known radio, optical and UV sources for 4FGL J1335.0-5656


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 ET Cen 13 34 59.90 -56 51 34.92 5.28 GCVS
2 [PME2013] J1335-5700 13 35 58.51 -57 00 55.08 8.44 AT2FGLUS
[SPT2015] ATCA J1335-5700 13 35 58.61 -57 00 55.08 8.45 FER2FUSRID
3 MGPS J133415-570251 13 34 15.19 -57 02 52.08 9.01 MGPS2
4 PPM 770872 13 36 12.86 -56 56 42.36 9.35 PPM
5 MGPS J133354-565359 13 33 54.31 -56 53 58.92 9.96 MGPS2
6 PPM 770869 13 36 09.36 -57 04 59.16 12.04 PPM

Penn State University Goddard Space Flight Center Swift