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 39.06 -25 30 14.85 3.90 (6.3 ± 0.6) x 10-3 152 11.050 10.550
2 07 43 30.42 -25 28 09.87 4.34 (1.8 ± 0.3) x 10-3 56 5.506 5.446
3 07 43 45.35 -25 30 59.52 4.52 (1.3 ± 0.3) x 10-3 40 4.564 4.575
4 07 43 47.98 -25 32 47.81 4.52 (1.3 ± 0.3) x 10-3 43 4.590 4.287
5 07 43 52.15 -25 24 06.63 4.52 (1.2 ± 0.3) x 10-3 51 4.186 4.004
6 07 43 46.58 -25 25 07.02 4.37 (1.0 ± 0.3) x 10-3 52 4.124 3.705
7 07 44 28.42 -25 27 44.80 4.57 (8 ± 3) x 10-4 38 2.760 3.125
8 07 43 54.03 -25 25 08.02 4.63 (8 ± 3) x 10-4 44 3.286 3.096

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 43 36.92 -25 16 12.39 4.55 (7 ± 2) x 10-4 30 3.225 2.997
2 07 44 33.62 -25 17 02.42 4.67 (7 ± 2) x 10-4 32 3.102 2.881
3 07 44 03.61 -25 16 30.33 4.60 (7 ± 2) x 10-4 37 3.323 2.817
4 07 44 23.41 -25 14 42.69 4.55 (4 ± 2) x 10-4 31 2.764 1.940

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 WDS J07442-2528 07 44 12.00 -25 28 00.12 4.55 WDS
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
5 WDS J07437-2530 07 43 42.00 -25 30 00.00 8.86 WDS
6 WDS J07435-2520 07 43 30.00 -25 19 59.88 9.43 WDS
7 PPM 253048 07 43 39.12 -25 30 13.68 9.47 PPM
HD 62555 07 43 39.12 -25 30 13.68 9.47 HIC
HIP 37660 07 43 39.12 -25 30 13.68 9.47 HIPPARCOS
CD-25 4966 07 43 39.12 -25 30 14.04 9.48 ACRS
SAO 174395 07 43 39.12 -25 30 14.40 9.48 SAO
HR 2992 07 43 39.10 -25 30 14.04 9.48 BSC5P
8 SAO 174409 07 44 04.20 -25 13 32.16 10.03 SAO
PPM 253065 07 44 04.42 -25 13 31.80 10.03 PPM
9 WDS J07444-2533 07 44 24.00 -25 33 00.00 10.09 WDS
VLSS J0743.4-2520 07 43 25.70 -25 20 04.92 10.30 VLSS
10 NVSS J074325-252003 07 43 25.61 -25 20 03.12 10.34 NVSS
11 NVSS J074335-253046 07 43 35.50 -25 30 47.16 10.44 NVSS
12 WDS J07436-2516 07 43 36.00 -25 16 00.12 10.54 WDS
13 NVSS J074448-252920 07 44 48.79 -25 29 20.04 10.76 NVSS
14 WDS J07433-2521 07 43 18.00 -25 21 00.00 11.73 WDS
15 PPM 727849 07 43 43.49 -25 12 42.12 12.22 PPM
16 OI-270 07 43 24.41 -25 16 13.08 12.40 DIXON
17 NVSS J074323-253109 07 43 22.99 -25 31 09.84 12.84 NVSS

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