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 J1249.3-2812

Field

Detected Excesses

Swift-XRT image of the field for 1FGL J1249.3-2812 Swift-XRT detections in the field for 1FGL J1249.3-2812

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 12 49 19.45 -28 08 33.17 3.69 (9.4 ± 0.5) x 10-2 452 19.970 20.190
2 12 50 05.69 -28 12 19.20 4.35 (1.5 ± 0.2) x 10-2 76 8.548 7.899
3 12 49 00.08 -28 12 24.41 5.53 (5.2 ± 1.2) x 10-3 27 4.522 4.493

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 12 49 00.01 -28 09 03.38 6.21 (2.3 ± 0.8) x 10-3 12 2.725 2.704
2 12 48 35.22 -28 11 48.69 6.52 (2.0 ± 0.8) x 10-3 13 2.472 2.606
3 12 49 52.73 -28 14 25.40 6.21 (1.6 ± 0.7) x 10-3 11 2.338 2.131
4 12 49 17.58 -28 02 19.91 6.12 (1.1 ± 0.6) x 10-3 15 2.290 1.792
5 12 49 19.45 -28 08 32.92 3.69 N/A 452 2.405 N/A

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 1FGL J1249.3-2812 Swift-XRT image with known radio, optical and UV sources for 1FGL J1249.3-2812

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J124917.8-280657 12 49 17.81 -28 06 56.88 5.89 ROSAT
2 1RXS J125006.3-281211 12 50 06.31 -28 12 11.16 9.51 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 PGC 3082073 12 49 06.79 -28 11 38.04 3.77 PGC2003
QORG J124919.2-280836 12 49 19.20 -28 08 35.88 4.21 QORGCAT
PGC 745327 12 49 19.30 -28 08 35.16 4.22 PGC2003
2 NVSS J124919-280833 12 49 19.30 -28 08 34.08 4.24 NVSS
3 NVSS J124952-281606 12 49 52.20 -28 16 05.88 7.24 NVSS
4 NVSS J124859-281845 12 48 59.59 -28 18 45.00 7.96 NVSS
5 PGC 742867 12 49 46.01 -28 20 26.88 9.22 PGC2003
6 PGC 3096191 12 50 05.50 -28 12 18.00 9.33 PGC2003
CTS K06.04 12 50 05.50 -28 12 18.00 9.33 VERONCAT
HB91 1247-279 12 50 05.47 -28 11 55.68 9.35 EXGALEMOBJ
A1247-2755 12 50 05.47 -28 11 55.68 9.35 ZCAT
QORG J125005.6-281218 12 50 05.59 -28 12 18.00 9.35 QORGCAT
HB93 1247-279 12 50 05.50 -28 11 55.68 9.35 QSO
7 PPM 730974 12 50 12.02 -28 13 53.76 10.82 PPM
8 NVSS J125010-280915 12 50 10.01 -28 09 15.12 10.88 NVSS
9 PGC 83586 12 50 12.70 -28 12 15.84 10.91 PGC2003
QORG J124839.1-281807 12 48 39.10 -28 18 06.84 11.11 QORGCAT
10 NVSS J124838-281807 12 48 39.00 -28 18 06.84 11.14 NVSS
PPM 730975 12 50 13.46 -28 14 16.08 11.18 PPM
11 PGC 743838 12 50 12.79 -28 15 46.08 11.34 PGC2003
12 909- 66 12 50 14.23 -28 14 13.20 11.34 NLTT
13 PGC 742970 12 48 41.21 -28 19 59.88 11.77 PGC2003
14 NVSS J125015-280848 12 50 15.79 -28 08 48.12 12.24 NVSS
15 NVSS J125017-281520 12 50 17.50 -28 15 20.88 12.24 NVSS
16 PGC 742229 12 48 56.11 -28 23 35.88 12.41 PGC2003
17 PPM 730972 12 50 03.31 -28 22 19.20 13.05 PPM
18 NVSS J124842-282243 12 48 42.70 -28 22 44.04 13.40 NVSS
19 PPM 730964 12 48 47.64 -28 24 05.40 13.81 PPM
20 PGC 746826 12 50 10.61 -28 01 12.00 15.55 PGC2003

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