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 J0724.1-3522

Field

Detected Excesses

Swift-XRT image of the field for 1FGL J0724.1-3522 Swift-XRT detections in the field for 1FGL J0724.1-3522

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 07 24 01.78 -35 13 05.91 6.78 (3.3 ± 1.0) x 10-3 13 2.850 3.253
2 07 24 47.02 -35 32 13.07 6.04 (4.4 ± 1.3) x 10-3 17 3.366 3.241

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 24 19.76 -35 19 09.71 7.71 (2.2 ± 0.9) x 10-3 9 2.383 2.387
2 07 24 49.88 -35 23 11.03 5.31 (5 ± 7) x 10-4 19 3.484 0.819

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 1FGL J0724.1-3522 Swift-XRT image with known radio, optical and UV sources for 1FGL J0724.1-3522


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 PGC 649685 07 23 59.11 -35 22 37.92 2.14 PGC2003
2 NVSS J072440-351958 07 24 40.70 -35 19 58.08 6.76 NVSS
3 SAO 197967 07 24 41.93 -35 20 26.16 6.87 SAO
CD-35 3578 07 24 41.95 -35 20 25.44 6.88 ACRS
PPM 283936 07 24 42.12 -35 20 25.44 6.91 PPM
4 PGC 649045 07 23 36.00 -35 25 41.16 7.65 PGC2003
5 NVSS J072439-352643 07 24 39.91 -35 26 43.08 7.73 NVSS
6 NVSS J072348-352840 07 23 48.79 -35 28 41.16 7.75 NVSS
7 NVSS J072342-351600 07 23 42.31 -35 16 00.12 8.26 NVSS
8 PGC 651695 07 23 57.60 -35 13 21.00 9.13 PGC2003
9 NVSS J072452-352720 07 24 52.39 -35 27 20.16 10.19 NVSS
MGPS J072452-352721 07 24 52.39 -35 27 20.88 10.20 MGPS2
10 NVSS J072433-351254 07 24 33.41 -35 12 55.08 10.47 NVSS
11 NVSS J072344-353136 07 23 44.40 -35 31 36.12 10.72 NVSS
12 NVSS J072327-351538 07 23 27.19 -35 15 38.16 10.78 NVSS
13 PGC 649495 07 23 14.81 -35 23 29.04 11.19 PGC2003
14 PGC 648043 07 23 29.30 -35 30 29.16 11.65 PGC2003
15 NVSS J072324-351332 07 23 24.19 -35 13 32.16 12.61 NVSS
MGPS J072323-351335 07 23 23.90 -35 13 36.12 12.62 MGPS2
MGPS J072338-353318 07 23 38.50 -35 33 18.00 12.80 MGPS2
16 NVSS J072338-353319 07 23 38.50 -35 33 20.16 12.81 NVSS
17 PPM 740075 07 25 02.40 -35 29 16.08 12.94 PPM
18 NVSS J072448-353327 07 24 48.60 -35 33 28.08 13.85 NVSS
19 PGC 647560 07 25 07.30 -35 32 49.92 15.92 PGC2003

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