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.

4FGL J2207.1+2222

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J2207.1+2222 Swift-XRT detections in the field for 4FGL J2207.1+2222

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 22 07 04.07 +22 22 32.12 5.20 (9 ± 2) x 10-3 32 5.178 5.026

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 22 07 16.47 +22 28 38.91 6.93 (2.9 ± 1.1) x 10-3 11 2.538 2.618

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J2207.1+2222 Swift-XRT image with known radio, optical and UV sources for 4FGL J2207.1+2222

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J220703.6+222232 22 07 03.65 +22 22 32.52 1.45 ROSAT
2RXS J220703.6+222232 22 07 03.65 +22 22 32.52 1.45 ROSAT
2 2RXS J220619.6+221536 22 06 19.68 +22 15 36.00 13.48 ROSAT
2RXS J220619.6+221536 22 06 19.68 +22 15 36.00 13.48 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J220704+222234 22 07 04.20 +22 22 35.04 1.32 NVSS
2 BD+21 4690 22 07 15.36 +22 29 14.28 6.90 ACRS
PPM 114054 22 07 15.41 +22 29 14.64 6.91 PPM
TGSSADR J220640.1+222403 22 06 40.20 +22 24 02.88 7.06 GMRTAS150M
3 NVSS J220640+222400 22 06 40.10 +22 24 01.08 7.07 NVSS
TGSSADR J220731.1+221653 22 07 31.10 +22 16 54.12 7.42 GMRTAS150M
4 NVSS J220731+221651 22 07 31.10 +22 16 50.88 7.44 NVSS
5 BD+21 4693 22 07 28.03 +22 28 35.76 7.44 ACRS
6 NVSS J220639+222511 22 06 39.91 +22 25 12.00 7.46 NVSS
PPM 114061 22 07 28.10 +22 28 37.20 7.47 PPM
7 NVSS J220642+222631 22 06 42.70 +22 26 30.84 7.48 NVSS
8 PPM 114044 22 06 50.83 +22 28 42.96 7.66 PPM
BD+21 4689 22 06 50.83 +22 28 42.96 7.66 ACRS
9 NVSS J220705+221133 22 07 05.40 +22 11 34.08 10.94 NVSS
TGSSADR J220705.4+221132 22 07 05.50 +22 11 33.00 10.96 GMRTAS150M

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