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 J1226.0+2954

Field

Detected Excesses

Swift-XRT image of the field for 1FGL J1226.0+2954 Swift-XRT detections in the field for 1FGL J1226.0+2954

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 12 26 08.28 +29 59 42.52 4.97 (8 ± 2) x 10-3 35 5.401 4.880
2 12 25 36.90 +29 54 20.76 5.53 (5.0 ± 1.3) x 10-3 24 3.825 3.821

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 26 15.21 +30 00 37.25 5.82 (2.0 ± 0.9) x 10-3 16 2.442 2.127
2 12 26 08.28 +29 59 42.74 4.97 (1.5 ± 1.0) x 10-3 35 2.614 1.519

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 1FGL J1226.0+2954 Swift-XRT image with known radio, optical and UV sources for 1FGL J1226.0+2954

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 SWIFT J122608.4+295944 12 26 08.45 +29 59 44.52 5.14 SWIFT
2 SWIFT J122537.1+295420 12 25 37.10 +29 54 20.52 5.44 SWIFT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
WN 1223.4+3015 12 25 56.71 +29 58 39.00 4.04 WENSS
1 NVSS J122556+295852 12 25 56.59 +29 58 51.96 4.25 NVSS
FIRST J122556.6+295854 12 25 56.59 +29 58 54.12 4.28 FIRST
TGSSADR J122556.3+295855 12 25 56.40 +29 58 54.84 4.31 GMRTAS150M
WN 1223.2+3012 12 25 42.60 +29 56 04.92 4.41 WENSS
FIRST J122542.2+295616 12 25 42.19 +29 56 16.08 4.56 FIRST
2 NVSS J122542+295615 12 25 42.19 +29 56 16.08 4.56 NVSS
3 FIRST J122540.4+295243 12 25 40.51 +29 52 42.96 5.13 FIRST
4 FIRST J122542.1+294944 12 25 42.19 +29 49 45.12 6.64 FIRST
5 FIRST J122615.8+300357 12 26 15.91 +30 03 56.88 9.64 FIRST
6 NVSS J122619+294524 12 26 19.70 +29 45 24.12 10.13 NVSS
FIRST J122619.0+294520 12 26 19.01 +29 45 20.16 10.14 FIRST
FIRST J122524.1+294730 12 25 24.19 +29 47 30.84 10.98 FIRST
7 NVSS J122524+294727 12 25 24.00 +29 47 27.96 11.04 NVSS
8 FIRST J122615.1+294324 12 26 15.10 +29 43 24.96 11.73 FIRST
9 FIRST J122547.1+300646 12 25 47.21 +30 06 46.08 12.41 FIRST
10 FIRST J122520.3+300423 12 25 20.30 +30 04 23.16 13.18 FIRST
FIRST J122527.1+300538 12 25 27.10 +30 05 39.12 13.23 FIRST
11 NVSS J122527+300549 12 25 27.60 +30 05 49.92 13.32 NVSS
WN 1222.9+3022 12 25 28.10 +30 06 00.00 13.41 WENSS
12 FIRST J122528.9+300624 12 25 28.99 +30 06 24.84 13.66 FIRST
13 NVSS J122639+300621 12 26 39.31 +30 06 20.88 14.09 NVSS
FIRST J122639.8+300616 12 26 39.91 +30 06 16.92 14.10 FIRST
WN 1222.7+3021 12 25 13.70 +30 04 45.84 14.47 WENSS
FIRST J122513.2+300440 12 25 13.20 +30 04 40.08 14.48 FIRST
14 NVSS J122513+300441 12 25 13.20 +30 04 41.16 14.50 NVSS

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