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 J0921.6+2339

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J0921.6+2339 Swift-XRT detections in the field for 3FGL J0921.6+2339

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 09 21 45.57 +23 35 49.72 6.78 (9 ± 3) x 10-3 14 3.400 3.484

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 09 21 12.13 +23 41 23.07 7.27 (4 ± 2) x 10-3 8 2.161 2.129

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J0921.6+2339 Swift-XRT image with known radio, optical and UV sources for 3FGL J0921.6+2339

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 [MML2015] 5BZB J0921+2335 09 21 45.36 +23 35 48.12 3.75 null
SWIFT J092145.1+233546 09 21 45.19 +23 35 46.68 3.76 SWIFT
2 2RXS J092147.1+233333 09 21 47.16 +23 33 33.84 6.01 ROSAT
2RXS J092147.1+233333 09 21 47.16 +23 33 33.84 6.01 ROSAT
1RXS J092145.5+233324 09 21 45.50 +23 33 24.48 6.07 ROSAT
3 SWIFT J092118.2+233401 09 21 18.29 +23 34 01.92 7.23 SWIFT
4 SWIFT J092135.2+233134 09 21 35.23 +23 31 34.32 7.83 SWIFT
5 [MML2015] 5BZB J0922+2346 09 22 16.39 +23 46 45.48 11.20 null

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 FIRST J092139.9+233858 09 21 39.91 +23 38 57.84 0.36 FIRST
2 NVSS J092145+233548 09 21 45.41 +23 35 48.84 3.75 NVSS
FIRST J092145.3+233548 09 21 45.41 +23 35 48.12 3.75 FIRST
[MML2015] 5BZB J0921+2335 09 21 45.41 +23 35 48.12 3.75 ROMABZCAT
TGSSADR J092145.6+233549 09 21 45.60 +23 35 48.84 3.76 GMRTAS150M
GB6 J0921+2335 09 21 45.50 +23 35 40.92 3.88 GB6
3 NVSS J092121+233842 09 21 21.70 +23 38 43.08 4.18 NVSS
FIRST J092121.6+233843 09 21 21.60 +23 38 44.16 4.20 FIRST
TGSSADR J092121.5+233843 09 21 21.60 +23 38 43.08 4.22 GMRTAS150M
4 FIRST J092142.4+234342 09 21 42.50 +23 43 42.96 4.42 FIRST
5 FIRST J092144.2+233301 09 21 44.30 +23 33 02.16 6.38 FIRST
6 FIRST J092115.4+234707 09 21 15.50 +23 47 07.08 9.57 FIRST
7 FIRST J092128.4+232955 09 21 28.51 +23 29 56.04 9.75 FIRST
FIRST J092225.4+233744 09 22 25.51 +23 37 44.04 10.59 FIRST
TGSSADR J092225.5+233744 09 22 25.51 +23 37 45.12 10.60 GMRTAS150M
8 NVSS J092225+233742 09 22 25.51 +23 37 41.88 10.61 NVSS
GLEAM J092215+234644 09 22 15.50 +23 46 44.04 11.02 GLEAMEGCAT
FIRST J092215.7+234639 09 22 15.79 +23 46 40.08 11.04 FIRST
FIRST J092216.3+234635 09 22 16.30 +23 46 35.04 11.08 FIRST
9 NVSS J092206+233006 09 22 06.79 +23 30 06.84 11.11 NVSS
TGSSADR J092216.2+234639 09 22 16.20 +23 46 40.08 11.11 GMRTAS150M
FIRST J092206.7+233005 09 22 06.79 +23 30 06.12 11.12 FIRST
TGSSADR J092206.7+233004 09 22 06.70 +23 30 05.04 11.12 GMRTAS150M
10 NVSS J092216+234640 09 22 16.20 +23 46 41.16 11.12 NVSS
FIRST J092216.3+234645 09 22 16.39 +23 46 45.12 11.19 FIRST
[MML2015] 5BZB J0922+2346 09 22 16.39 +23 46 45.84 11.20 ROMABZCAT
GB6 J0922+2347 09 22 16.10 +23 47 08.88 11.42 GB6
11 FIRST J092048.0+233906 09 20 48.00 +23 39 06.12 11.85 FIRST
TGSSADR J092047.9+233905 09 20 47.90 +23 39 06.12 11.88 GMRTAS150M
12 OK+230 09 20 47.71 +23 41 13.92 12.06 DIXON

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