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 J2128.0+3623

Field

Detected Excesses
Swift-XRT image of the field for 1FGL J2128.0+3623 Swift-XRT detections in the field for 1FGL J2128.0+3623

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 21 27 42.60 +36 13 08.46 4.47 (3.0 ± 0.4) x 10-2 66 8.276 7.177
2 21 28 14.14 +36 29 28.35 6.52 (7 ± 2) x 10-3 14 3.275 3.146

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 21 28 24.85 +36 21 32.31 6.65 (5 ± 2) x 10-3 14 2.857 2.852
2 21 27 23.36 +36 17 33.49 7.48 (5 ± 2) x 10-3 9 2.758 2.647
3 21 28 22.82 +36 15 44.22 7.97 (4 ± 2) x 10-3 8 2.386 2.370

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 1FGL J2128.0+3623 Swift-XRT image with known radio, optical and UV sources for 1FGL J2128.0+3623

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
[MML2015] 5BZB J2127+3613 21 27 43.20 +36 13 05.88 11.32 null
2RXS J212741.4+361310 21 27 41.47 +36 13 10.20 11.36 ROSAT
1 XMMSL2 J212742.8+361302 21 27 43.10 +36 13 03.00 11.36 XMM-NEWTON
1RXS J212741.4+361310 21 27 41.40 +36 13 09.84 11.37 ROSAT
XMMSL2 J212742.8+361302 21 27 42.67 +36 13 02.28 11.40 XMM-NEWTON
2 1RXS J212718.4+361221 21 27 18.41 +36 12 20.88 14.35 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J212734+362322 21 27 34.20 +36 23 22.92 5.49 NVSS
2 NVSS J212842+362500 21 28 42.79 +36 25 00.84 8.43 NVSS
WN 2126.6+3611 21 28 42.79 +36 25 03.00 8.43 WENSS
TGSSADR J212842.8+362501 21 28 42.91 +36 25 01.92 8.44 GMRTAS150M
GB6 J2128+3625 21 28 43.30 +36 25 09.84 8.54 GB6
3 2126+3612 21 28 45.41 +36 25 27.12 9.01 NORTH6CM
B2.3 2125+36A 21 27 24.31 +36 17 58.92 9.46 DIXON
GB6 J2127+3617 21 27 24.31 +36 17 51.00 9.55 GB6
VLSSr J212724.2+361735 21 27 24.19 +36 17 35.16 9.73 VLSSR
TGSSADR J212724.1+361733 21 27 24.19 +36 17 34.08 9.75 GMRTAS150M
WN 2125.3+3604 21 27 24.00 +36 17 34.08 9.77 WENSS
4 NVSS J212723+361734 21 27 23.90 +36 17 34.08 9.78 NVSS
TXS 2125+360 21 27 22.90 +36 17 48.84 9.79 TEXAS
2125+3604 21 27 23.50 +36 17 39.12 9.79 NORTH6CM
VLSSr J212743.1+361316 21 27 43.20 +36 13 15.96 11.14 VLSSR
WN 2125.6+3559B 21 27 43.20 +36 13 08.04 11.28 WENSS
TGSSADR J212743.1+361305 21 27 43.20 +36 13 05.88 11.31 GMRTAS150M
CRATES J212743+361251 21 27 43.01 +36 13 05.88 11.32 CRATES
5 NVSS J212733+363338 21 27 33.60 +36 33 38.16 11.32 NVSS
CRATES J212743+361251 21 27 43.01 +36 13 05.88 11.32 CRATES
CRATES J212743+361251 21 27 43.01 +36 13 05.88 11.32 CRATES
[MML2015] 5BZB J2127+3613 21 27 43.01 +36 13 05.88 11.32 ROMABZCAT
6 NVSS J212743+361305 21 27 43.01 +36 13 05.16 11.33 NVSS
2125+3559 21 27 43.90 +36 12 56.16 11.42 NORTH6CM
2125+3559 21 27 43.90 +36 12 56.16 11.42 NORTH20CM
GB6 J2127+3612 21 27 43.51 +36 12 51.12 11.52 GB6
7 MITG J2127+3612 21 27 40.61 +36 12 51.12 11.72 MITGB6CM
8 NVSS J212817+361227 21 28 18.00 +36 12 27.00 11.82 NVSS
9 WN 2125.6+3559 21 27 41.90 +36 12 21.96 12.09 WENSS
B2.3 2125+35 21 27 43.20 +36 12 06.12 12.26 DIXON
WN 2126.8+3618 21 28 54.10 +36 32 08.16 13.49 WENSS
TGSSADR J212854.0+363209 21 28 54.10 +36 32 09.96 13.49 GMRTAS150M
10 NVSS J212854+363211 21 28 54.31 +36 32 12.12 13.55 NVSS
GB6 J2128+3632 21 28 55.10 +36 32 24.00 13.81 GB6
11 MITG J2128+3633 21 28 49.90 +36 33 52.92 14.03 MITGB6CM

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