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.

3FGL J0744.1-2523

Field

Detected Excesses
Swift-XRT image of the field for 3FGL J0744.1-2523 Swift-XRT detections in the field for 3FGL J0744.1-2523

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 07 43 38.93 -25 30 14.81 3.84 (5.4 ± 0.5) x 10-3 181 12.030 11.430
2 07 43 30.29 -25 28 09.73 4.17 (1.6 ± 0.3) x 10-3 66 5.991 5.941
3 07 43 45.22 -25 30 58.06 4.25 (1.4 ± 0.3) x 10-3 53 5.548 5.607
4 07 43 47.92 -25 32 45.21 4.31 (1.0 ± 0.2) x 10-3 53 4.773 4.510
5 07 43 46.42 -25 25 08.59 4.24 (1.0 ± 0.2) x 10-3 64 4.402 4.324
6 07 43 52.08 -25 24 04.90 4.36 (10 ± 2) x 10-4 57 4.528 4.146
7 07 43 36.98 -25 16 08.94 4.34 (7 ± 2) x 10-4 38 3.771 3.665
8 07 44 52.06 -25 05 03.95 6.52 (4.1 ± 1.2) x 10-4 13 3.236 3.409
9 07 44 03.57 -25 16 26.15 4.33 (7 ± 2) x 10-4 44 3.831 3.370
10 07 44 08.30 -25 23 58.96 4.49 (7 ± 2) x 10-4 57 3.126 3.315
11 07 44 28.41 -25 27 47.18 4.36 (7 ± 2) x 10-4 45 3.325 3.265

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 07 44 47.50 -25 24 42.07 4.30 (6 ± 2) x 10-4 46 3.427 2.967
2 07 43 54.40 -25 25 10.91 4.50 (6 ± 2) x 10-4 47 3.121 2.952
3 07 44 33.61 -25 16 57.58 4.57 (4 ± 2) x 10-4 32 2.767 2.481
4 07 44 30.93 -25 14 26.59 4.39 (4 ± 2) x 10-4 30 3.218 2.381
5 07 44 10.96 -25 13 34.73 4.35 (4 ± 2) x 10-4 34 2.885 2.377
6 07 43 47.10 -25 17 37.40 4.33 (4 ± 2) x 10-4 49 2.749 2.318

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 3FGL J0744.1-2523 Swift-XRT image with known radio, optical and UV sources for 3FGL J0744.1-2523


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 [PME2013] J0743-2525 07 43 52.51 -25 25 30.00 4.39 AT2FGLUS
2 NVSS J074424-251613 07 44 24.00 -25 16 14.16 8.30 NVSS
3 NVSS J074355-251612 07 43 55.70 -25 16 13.08 8.46 NVSS
4 NVSS J074401-251457 07 44 01.90 -25 14 57.12 9.23 NVSS
TGSSADR J074448.6-252921 07 44 48.70 -25 29 21.84 10.13 GMRTAS150M
5 NVSS J074448-252920 07 44 48.79 -25 29 20.04 10.14 NVSS
6 NVSS J074335-253046 07 43 35.50 -25 30 47.16 10.47 NVSS
TGSSADR J074334.9-253054 07 43 34.99 -25 30 54.00 10.65 GMRTAS150M
MWACS J0743.4-2520 07 43 26.21 -25 20 21.84 10.67 MWACS
VLSSr J074325.5-252003 07 43 25.61 -25 20 03.84 10.92 VLSSR
7 NVSS J074325-252003 07 43 25.61 -25 20 03.12 10.92 NVSS
TGSSADR J074325.4-252004 07 43 25.51 -25 20 03.84 10.94 GMRTAS150M
8 NVSS J074323-253109 07 43 22.99 -25 31 09.84 12.95 NVSS
TGSSADR J074322.9-253110 07 43 22.90 -25 31 10.92 12.98 GMRTAS150M
9 OI-270 07 43 24.41 -25 16 13.08 13.03 DIXON
10 NVSS J074343-253541 07 43 43.49 -25 35 40.92 13.24 NVSS

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