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 J2054.2+6904

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J2054.2+6904 Swift-XRT detections in the field for 4FGL J2054.2+6904

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 20 52 00.45 +68 58 18.46 4.33 (3.8 ± 0.5) x 10-3 73 7.944 7.692
2 20 53 53.00 +69 01 44.95 4.76 (2.4 ± 0.4) x 10-3 48 5.460 5.727
3 20 53 57.76 +69 05 18.67 4.47 (2.2 ± 0.4) x 10-3 59 5.363 5.196
4 20 54 58.04 +68 51 10.39 6.31 (1.0 ± 0.3) x 10-3 18 3.677 4.001
5 20 52 03.49 +69 00 23.97 5.08 (1.0 ± 0.3) x 10-3 23 3.755 3.620
6 20 52 48.95 +68 53 22.91 5.00 (9 ± 3) x 10-4 25 3.556 3.479
7 20 54 01.47 +68 57 00.34 5.28 (9 ± 3) x 10-4 22 3.221 3.209
8 20 54 29.26 +69 04 00.08 5.02 (9 ± 3) x 10-4 33 3.106 3.080
9 20 53 50.43 +69 11 39.86 5.76 (7 ± 2) x 10-4 18 2.742 3.061

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 20 56 02.04 +68 59 01.79 5.64 (6 ± 2) x 10-4 21 2.462 2.564
2 20 54 37.91 +69 12 29.04 5.40 (6 ± 3) x 10-4 17 2.593 2.485
3 20 55 54.94 +69 09 34.15 6.93 (5 ± 2) x 10-4 10 2.392 2.472
4 20 54 22.45 +69 09 58.38 4.95 (5 ± 2) x 10-4 23 2.530 2.220

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J2054.2+6904 Swift-XRT image with known radio, optical and UV sources for 4FGL J2054.2+6904

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 SACSSP J205429.2+690417 20 54 29.21 +69 04 17.40 1.21 SWIFT
SACSTP J205428.5+690400 20 54 28.49 +69 03 59.76 1.27 SWIFT
2 SACSSP J205359.1+690519 20 53 59.14 +69 05 19.32 1.67 SWIFT
SACSHP J205359.0+690519 20 53 58.99 +69 05 18.60 1.68 SWIFT
SACSTP J205358.9+690519 20 53 58.94 +69 05 18.60 1.68 SWIFT
3 SACSSP J205431.2+690219 20 54 31.18 +69 02 18.96 2.66 SWIFT
4 SACSTP J205337.0+690357 20 53 37.03 +69 03 57.24 3.55 SWIFT
5 SACSTP J205345.6+690744 20 53 45.60 +69 07 44.40 4.14 SWIFT
6 SACSTP J205459.2+690128 20 54 59.21 +69 01 28.20 4.97 SWIFT
7 SACSTP J205402.9+685654 20 54 02.93 +68 56 53.52 7.81 SWIFT
8 SACSTP J205604.3+685853 20 56 04.30 +68 58 52.68 11.25 SWIFT
SACSSP J205604.3+685853 20 56 04.30 +68 58 52.68 11.25 SWIFT
9 SACSSP J205203.8+690021 20 52 03.82 +69 00 21.24 12.57 SWIFT
SACSTP J205203.6+690021 20 52 03.58 +69 00 20.88 12.60 SWIFT
10 SACSSP J205250.3+685323 20 52 50.26 +68 53 22.92 13.62 SWIFT
SACSTP J205248.9+685323 20 52 48.86 +68 53 22.92 13.69 SWIFT
SACSHP J205248.6+685320 20 52 48.62 +68 53 20.04 13.74 SWIFT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 CGPS J205506+690709 20 55 06.50 +69 07 09.12 5.16 CGPSNGPCAT
2 NVSS J205418+685852 20 54 18.31 +68 58 53.04 5.74 NVSS
CGPS J205419+685847 20 54 19.10 +68 58 48.00 5.83 CGPSNGPCAT
3 PPM 22474 20 55 20.33 +69 13 44.76 10.77 PPM
BD+68 1168 20 55 20.45 +69 13 44.40 10.77 ACRS
4 NVSS J205533+691307 20 55 33.79 +69 13 08.04 10.97 NVSS
5 NVSS J205619+691019 20 56 19.80 +69 10 19.92 12.41 NVSS
CGPS J205620+691023 20 56 20.71 +69 10 23.88 12.51 CGPSNGPCAT
TGSSADR J205227.5+691556 20 52 27.50 +69 15 56.88 14.89 GMRTAS150M
CGPS J205227+691556 20 52 27.50 +69 15 56.88 14.89 CGPSNGPCAT
6 NVSS J205227+691558 20 52 27.31 +69 15 59.04 14.93 NVSS
7 CGPS J205203+691532 20 52 03.10 +69 15 32.04 16.09 CGPSNGPCAT

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