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 J0744.1-2523

Field

Detected Excesses
Swift-XRT image of the field for 1FGL J0744.1-2523 Swift-XRT detections in the field for 1FGL 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 39.02 -25 30 14.61 3.85 (5.4 ± 0.5) x 10-3 179 11.910 11.440
2 07 43 30.27 -25 28 09.66 4.17 (1.6 ± 0.3) x 10-3 66 6.025 5.918
3 07 43 45.22 -25 30 57.61 4.26 (1.4 ± 0.3) x 10-3 52 5.530 5.585
4 07 43 47.82 -25 32 44.24 4.31 (1.1 ± 0.2) x 10-3 53 4.818 4.533
5 07 43 46.46 -25 25 05.35 4.23 (10 ± 2) x 10-4 65 4.494 4.236
6 07 43 52.13 -25 24 04.48 4.37 (10 ± 2) x 10-4 60 4.530 4.148
7 07 43 37.06 -25 16 05.55 4.35 (8 ± 2) x 10-4 39 3.934 3.815
8 07 44 31.34 -25 26 00.92 4.45 (7 ± 2) x 10-4 45 3.456 3.542
9 07 44 28.42 -25 27 50.39 4.37 (7 ± 2) x 10-4 47 3.291 3.383
10 07 43 54.24 -25 25 09.26 4.47 (6 ± 2) x 10-4 48 3.150 3.078
11 07 44 09.96 -25 24 16.73 4.42 (6 ± 2) x 10-4 65 3.102 3.020
12 07 44 47.41 -25 24 41.67 4.29 (6 ± 2) x 10-4 46 3.318 3.004

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 03.56 -25 16 25.87 4.33 (5 ± 2) x 10-4 44 3.658 2.879
2 07 44 57.19 -25 24 33.91 4.59 (4 ± 2) x 10-4 20 2.623 2.805
3 07 44 31.25 -25 14 30.80 4.39 (5 ± 2) x 10-4 35 3.204 2.769
4 07 44 19.03 -25 21 07.64 4.52 (5 ± 2) x 10-4 46 2.757 2.576
5 07 44 10.70 -25 13 53.55 4.37 (5 ± 2) x 10-4 37 2.913 2.563

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 1FGL J0744.1-2523 Swift-XRT image with known radio, optical and UV sources for 1FGL 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 4.16 AT2FGLUS
2 NVSS J074355-251612 07 43 55.70 -25 16 13.08 7.87 NVSS
3 NVSS J074424-251613 07 44 24.00 -25 16 14.16 8.07 NVSS
4 NVSS J074401-251457 07 44 01.90 -25 14 57.12 8.70 NVSS
MWACS J0743.4-2520 07 43 26.21 -25 20 21.84 10.10 MWACS
VLSSr J074325.5-252003 07 43 25.61 -25 20 03.84 10.34 VLSSR
5 NVSS J074325-252003 07 43 25.61 -25 20 03.12 10.34 NVSS
TGSSADR J074325.4-252004 07 43 25.51 -25 20 03.84 10.36 GMRTAS150M
6 NVSS J074335-253046 07 43 35.50 -25 30 47.16 10.44 NVSS
TGSSADR J074334.9-253054 07 43 34.99 -25 30 54.00 10.61 GMRTAS150M
TGSSADR J074448.6-252921 07 44 48.70 -25 29 21.84 10.75 GMRTAS150M
7 NVSS J074448-252920 07 44 48.79 -25 29 20.04 10.76 NVSS
8 OI-270 07 43 24.41 -25 16 13.08 12.40 DIXON
9 NVSS J074323-253109 07 43 22.99 -25 31 09.84 12.84 NVSS
TGSSADR J074322.9-253110 07 43 22.90 -25 31 10.92 12.87 GMRTAS150M

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