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.

1FGL J0523.5-2529

Field

Detected Excesses

Swift-XRT image of the field for 1FGL J0523.5-2529 Swift-XRT detections in the field for 1FGL J0523.5-2529

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 05 23 16.80 -25 27 35.70 4.16 (6.1 ± 0.7) x 10-3 107 8.755 8.962
2 05 23 24.10 -25 27 30.06 4.56 (3.0 ± 0.5) x 10-3 61 5.790 5.825
3 05 23 37.84 -25 31 41.87 4.42 (2.2 ± 0.5) x 10-3 65 4.806 4.809
4 05 23 38.98 -25 33 41.52 4.60 (1.7 ± 0.4) x 10-3 49 4.624 4.163
5 05 23 18.62 -25 33 07.52 4.67 (1.6 ± 0.4) x 10-3 39 3.881 3.978
6 05 23 43.52 -25 27 13.10 4.88 (1.5 ± 0.4) x 10-3 41 3.730 3.950
7 05 23 43.82 -25 24 22.62 4.80 (1.3 ± 0.4) x 10-3 29 3.857 3.681
8 05 23 15.88 -25 35 03.87 4.69 (1.3 ± 0.4) x 10-3 28 3.379 3.544
9 05 23 13.68 -25 23 18.79 5.11 (1.1 ± 0.3) x 10-3 25 3.365 3.371
10 05 23 08.73 -25 16 59.77 5.49 (1.1 ± 0.3) x 10-3 17 3.283 3.355
11 05 23 52.29 -25 29 53.13 5.14 (10 ± 3) x 10-4 25 2.995 3.142
12 05 23 08.07 -25 23 57.24 5.59 (9 ± 3) x 10-4 18 2.868 3.069

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 05 23 15.15 -25 20 49.98 5.31 (9 ± 3) x 10-4 20 2.588 2.972
2 05 24 03.34 -25 33 56.95 5.31 (8 ± 3) x 10-4 17 3.110 2.963
3 05 23 53.48 -25 26 06.38 4.90 (9 ± 3) x 10-4 27 2.763 2.936
4 05 22 44.74 -25 29 23.40 5.08 (9 ± 3) x 10-4 16 2.746 2.766
5 05 23 16.39 -25 34 42.10 4.66 (10 ± 4) x 10-4 40 2.877 2.738
6 05 23 19.47 -25 15 50.53 5.31 (7 ± 3) x 10-4 17 2.894 2.709
7 05 23 34.27 -25 19 08.77 4.95 (7 ± 3) x 10-4 23 2.751 2.529
8 05 23 34.85 -25 17 15.10 5.20 (6 ± 3) x 10-4 14 2.599 2.218

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 1FGL J0523.5-2529 Swift-XRT image with known radio, optical and UV sources for 1FGL J0523.5-2529

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1WGA J0523.2-2527 05 23 12.91 -25 27 24.48 5.19 ROSAT
2 1RXS J052328.4-253649 05 23 28.39 -25 36 49.68 7.02 ROSAT
3 1RXS J052248.6-253117 05 22 48.60 -25 31 17.40 10.14 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
PGC 778299 05 23 50.11 -25 29 45.96 3.84 PGC2003
1 NVSS J052350-252940 05 23 51.00 -25 29 39.84 4.04 NVSS
2 NVSS J052333-253411 05 23 33.10 -25 34 12.00 4.31 NVSS
WISH B0521.8-2530 05 23 51.50 -25 28 14.16 4.47 WISH
3 NVSS J052351-253150 05 23 51.79 -25 31 50.16 4.64 NVSS
4 NVSS J052352-252748 05 23 52.01 -25 27 48.96 4.75 NVSS
5 NVSS J052350-253258 05 23 50.11 -25 32 58.92 4.94 NVSS
QORG J052350.3-253258 05 23 50.30 -25 32 57.84 4.96 QORGCAT
6 QORG J052313.0-252736 05 23 13.01 -25 27 36.00 5.08 QORGCAT
7 NVSS J052307-252639 05 23 07.30 -25 26 39.12 6.65 NVSS
8 QORG J052328.7-253652 05 23 28.70 -25 36 51.84 7.05 QORGCAT
9 PPM 248829 05 23 13.90 -25 23 22.20 7.83 PPM
CD-25 2406 05 23 13.87 -25 23 22.20 7.83 ACRS
SAO 170376 05 23 13.87 -25 23 22.20 7.83 SAO
10 NVSS J052422-252854 05 24 22.70 -25 28 54.12 11.24 NVSS
11 NVSS J052420-253639 05 24 19.99 -25 36 38.88 12.57 NVSS
12 PGC 779523 05 22 41.90 -25 23 18.96 13.29 PGC2003

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