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 J1259.0-8148

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1259.0-8148 Swift-XRT detections in the field for 4FGL J1259.0-8148

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 13 00 59.43 -81 48 09.72 5.59 (9 ± 2) x 10-3 25 4.510 4.456

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 12 58 54.41 -81 59 36.06 7.27 (3.1 ± 1.1) x 10-3 10 2.666 2.897
2 12 57 29.59 -81 39 40.73 6.93 (2.6 ± 1.0) x 10-3 11 2.325 2.544
3 12 55 04.81 -81 45 13.17 4.71 (3.4 ± 1.4) x 10-3 23 3.283 2.409
4 12 56 09.48 -81 41 45.40 5.28 (3.3 ± 1.4) x 10-3 17 2.643 2.374
5 12 56 01.20 -81 43 06.64 5.82 (2.6 ± 1.2) x 10-3 11 2.517 2.206
6 12 54 55.48 -81 47 52.78 5.49 (2.1 ± 1.1) x 10-3 13 2.417 1.842
7 12 56 18.42 -81 41 29.97 5.24 (1.5 ± 1.0) x 10-3 21 2.333 1.537
8 12 55 04.83 -81 45 13.13 4.71 (1.7 ± 1.2) x 10-3 23 2.298 1.479
9 12 54 53.52 -81 45 19.30 4.86 (1.9 ± 1.3) x 10-3 27 2.694 1.465

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1259.0-8148 Swift-XRT image with known radio, optical and UV sources for 4FGL J1259.0-8148


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 18- 12 12 56 57.46 -81 47 13.56 4.81 NLTT
2 SUMSS J125619-814649 12 56 19.01 -81 46 49.08 6.23 SUMSS
GLEAM J125617-814634 12 56 17.90 -81 46 33.96 6.36 GLEAMEGCAT
3 SUMSS J130114-814301 13 01 14.50 -81 43 00.84 7.60 SUMSS
GLEAM J130117-814249 13 01 17.11 -81 42 48.96 7.81 GLEAMEGCAT

Penn State University Goddard Space Flight Center Swift