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.

3FGL J2354.0+2722

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J2354.0+2722 Swift-XRT detections in the field for 3FGL J2354.0+2722

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 23 53 30.39 +27 20 44.71 4.69 (4.3 ± 0.9) x 10-3 42 5.084 4.834
2 23 53 58.27 +27 16 35.79 5.14 (3.1 ± 0.9) x 10-3 28 3.954 3.625

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 23 54 03.31 +27 23 28.63 5.89 (1.6 ± 0.6) x 10-3 22 2.637 2.857
2 23 54 13.24 +27 17 04.89 5.82 (1.5 ± 0.6) x 10-3 17 2.956 2.737
3 23 53 45.10 +27 13 02.66 5.59 (1.3 ± 0.5) x 10-3 15 2.592 2.498
4 23 54 32.21 +27 19 40.92 6.12 (1.1 ± 0.5) x 10-3 14 2.595 2.435
5 23 54 05.50 +27 14 38.44 5.70 (1.2 ± 0.5) x 10-3 16 2.568 2.409
6 23 53 30.76 +27 20 39.63 4.76 (1.2 ± 0.6) x 10-3 39 2.425 2.123

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J2354.0+2722 Swift-XRT image with known radio, optical and UV sources for 3FGL J2354.0+2722


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 NVSS J235402+272328 23 54 02.21 +27 23 29.04 1.16 NVSS
2 NVSS J235420+272010 23 54 20.50 +27 20 09.96 4.99 NVSS
3 NVSS J235427+272412 23 54 27.50 +27 24 11.88 6.29 NVSS
TGSSADR J235427.6+272412 23 54 27.70 +27 24 11.88 6.32 GMRTAS150M
4 NVSS J235335+272537 23 53 35.40 +27 25 37.92 6.43 NVSS
5 NVSS J235405+272856 23 54 05.11 +27 28 57.00 6.64 NVSS
6 NVSS J235428+272633 23 54 28.10 +27 26 34.08 7.42 NVSS
7 NVSS J235400+273216 23 54 01.01 +27 32 17.16 9.89 NVSS
8 NVSS J235428+271212 23 54 28.20 +27 12 12.96 11.90 NVSS
9 NVSS J235433+271136 23 54 33.10 +27 11 35.88 13.00 NVSS

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