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 J1141.8-1403

Field

Detected Excesses

Swift-XRT image of the field for 1FGL J1141.8-1403 Swift-XRT detections in the field for 1FGL J1141.8-1403

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 11 41 41.73 -14 07 55.17 3.70 (7.5 ± 0.4) x 10-2 427 19.420 19.660
2 11 40 43.95 -14 02 14.73 5.44 (4.3 ± 0.9) x 10-3 26 4.778 4.773
3 11 41 23.74 -14 08 54.93 6.04 (2.7 ± 0.9) x 10-3 14 3.245 3.086

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 11 42 21.92 -14 00 30.84 6.31 (1.6 ± 0.6) x 10-3 15 2.627 2.663
2 11 41 18.30 -14 04 43.13 6.41 (1.7 ± 0.6) x 10-3 16 2.828 2.627
3 11 42 30.17 -14 06 19.06 6.65 (1.5 ± 0.6) x 10-3 12 2.482 2.540
4 11 41 36.88 -14 02 34.48 6.93 (1.4 ± 0.6) x 10-3 11 2.346 2.364
5 11 41 45.02 -14 10 31.39 6.41 (1.6 ± 0.7) x 10-3 12 2.613 2.246

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 1FGL J1141.8-1403 Swift-XRT image with known radio, optical and UV sources for 1FGL J1141.8-1403

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J114142.2-140757 11 41 42.19 -14 07 57.00 4.94 ROSAT
1RXS J114142.2-140757 11 41 42.19 -14 07 57.36 4.95 ROSAT
6dFGS J1141418-140755 11 41 41.81 -14 07 54.84 4.95 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
WISH B1139.3-1344 11 41 55.39 -14 01 04.08 2.69 WISH
1 NVSS J114156-140057 11 41 55.99 -14 00 57.96 2.84 NVSS
2 PGC 928806 11 41 46.01 -14 06 48.96 3.51 PGC2003
WISH B1139.1-1351 11 41 41.90 -14 07 45.12 4.80 WISH
3 NVSS J114141-140753 11 41 41.81 -14 07 53.04 4.93 NVSS
QORG J114141.8-140755 11 41 41.81 -14 07 54.84 4.96 QORGCAT
4 NVSS J114147-135810 11 41 47.90 -13 58 10.92 5.55 NVSS
5 PGC 930480 11 41 28.10 -13 59 24.00 7.20 PGC2003
6 PGC 928084 11 42 11.90 -14 10 14.88 8.17 PGC2003
7 NVSS J114133-141028 11 41 33.31 -14 10 28.92 8.23 NVSS
8 PMN J1141-1404 11 41 17.50 -14 04 04.08 8.40 PMN
9 NVSS J114117-140447 11 41 17.71 -14 04 48.00 8.42 NVSS
CRATES J114117-140404 11 41 17.71 -14 04 46.92 8.43 CRATES
WISH B1138.7-1348 11 41 17.59 -14 04 44.04 8.44 WISH
QORG J114117.6-140447 11 41 17.59 -14 04 46.92 8.45 QORGCAT
10 WISH B1139.0-1354 11 41 33.41 -14 11 17.16 8.89 WISH
11 NVSS J114159-135428 11 41 59.59 -13 54 29.16 9.33 NVSS
12 PGC 931492 11 41 33.60 -13 54 52.92 9.84 PGC2003
13 PGC 930022 11 42 32.50 -14 01 17.04 10.08 PGC2003
14 PGC 931845 11 41 35.30 -13 53 20.04 11.08 PGC2003
15 PGC 928107 11 42 29.59 -14 10 05.16 11.15 PGC2003
16 NVSS J114240-140310 11 42 40.51 -14 03 10.08 11.73 NVSS
17 N3823 11 42 08.40 -13 52 08.76 12.15 ZCAT
18 PGC 927972 11 42 33.19 -14 10 54.12 12.33 PGC2003
MCG-02-30-017 11 42 08.40 -13 51 39.60 12.61 MCG
19 PGC 36331 11 42 15.19 -13 52 00.12 12.92 PGC2003
NGC 3823 11 42 15.19 -13 52 00.12 12.92 RC3
20 PGC 930959 11 41 02.90 -13 57 20.16 13.50 PGC2003
21 PGC 3093645 11 42 19.01 -13 51 45.00 13.56 PGC2003

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