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 J0020.9+0323

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J0020.9+0323 Swift-XRT detections in the field for 3FGL J0020.9+0323

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 00 20 27.72 +03 34 13.36 5.05 (1.6 ± 0.3) x 10-2 42 6.107 6.234
2 00 20 43.54 +03 26 58.10 6.65 (5 ± 2) x 10-3 14 3.159 3.385

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 00 21 16.06 +03 28 49.04 7.09 (3.9 ± 1.3) x 10-3 11 2.848 2.908
2 00 20 49.89 +03 23 52.17 6.31 (5 ± 2) x 10-3 16 2.788 2.867
3 00 20 37.54 +03 25 16.48 6.93 (3.2 ± 1.4) x 10-3 11 2.492 2.263

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J0020.9+0323 Swift-XRT image with known radio, optical and UV sources for 3FGL J0020.9+0323

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 3XMM J002019.6+032954 00 20 19.70 +03 29 54.60 10.86 XMM-NEWTON
2 3XMM J002020.3+033034 00 20 20.35 +03 30 34.56 11.13 XMM-NEWTON
3 3XMM J002012.3+032638 00 20 12.34 +03 26 38.04 11.15 XMM-NEWTON
4 3XMM J002014.5+032935 00 20 14.59 +03 29 35.16 11.77 XMM-NEWTON
5 3XMM J002027.6+033410 00 20 27.67 +03 34 10.56 12.55 XMM-NEWTON
2RXS J002027.7+033419 00 20 27.72 +03 34 19.20 12.66 ROSAT
2RXS J002027.7+033419 00 20 27.72 +03 34 19.20 12.66 ROSAT
6 3XMM J002029.2+033457 00 20 29.23 +03 34 57.72 13.01 XMM-NEWTON
7 3XMM J002007.5+032903 00 20 07.56 +03 29 03.84 13.10 XMM-NEWTON
8 3XMM J002022.0+033419 00 20 22.90 +03 34 19.20 13.48 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J002054+032309 00 20 54.91 +03 23 09.96 0.57 NVSS
FIRST J002050.2+032358 00 20 50.30 +03 23 57.84 1.32 FIRST
2 NVSS J002050+032357 00 20 50.21 +03 23 57.12 1.34 NVSS
GLEAM J002049+032414 00 20 49.61 +03 24 14.04 1.56 GLEAMEGCAT
TGSSADR J002048.1+032440 00 20 48.19 +03 24 39.96 2.06 GMRTAS150M
3 NVSS J002048+032440 00 20 48.00 +03 24 41.04 2.10 NVSS
FIRST J002048.0+032441 00 20 48.00 +03 24 42.12 2.10 FIRST
FIRST J002054.2+031854 00 20 54.19 +03 18 55.08 4.82 FIRST
4 NVSS J002054+031847 00 20 54.29 +03 18 47.88 4.93 NVSS
TGSSADR J002120.1+032154 00 21 20.09 +03 21 54.00 6.42 GMRTAS150M
5 NVSS J002120+032153 00 21 20.09 +03 21 52.92 6.42 NVSS
FIRST J002120.1+032154 00 21 20.21 +03 21 54.00 6.43 FIRST
6 NVSS J002111+031710 00 21 11.21 +03 17 09.96 7.64 NVSS
7 FIRST J002017.2+032350 00 20 17.21 +03 23 51.00 9.54 FIRST
8 NVSS J002105+033306 00 21 05.30 +03 33 06.84 9.71 NVSS
FIRST J002105.6+033308 00 21 05.59 +03 33 09.00 9.76 FIRST
FIRST J002133.1+032049 00 21 33.19 +03 20 49.92 9.85 FIRST
9 NVSS J002133+032052 00 21 33.29 +03 20 52.08 9.85 NVSS
TGSSADR J002133.4+032049 00 21 33.50 +03 20 49.92 9.91 GMRTAS150M
10 NVSS J002015+032252 00 20 15.79 +03 22 53.04 9.93 NVSS
11 FIRST J002113.5+031422 00 21 13.49 +03 14 22.92 10.37 FIRST
TGSSADR J002113.5+031419 00 21 13.61 +03 14 20.04 10.42 GMRTAS150M
12 FIRST J002137.6+032503 00 21 37.70 +03 25 04.08 10.63 FIRST
13 MITG J0020+0312 00 20 53.59 +03 12 05.04 11.64 MITGB6CM
14 NVSS J002142+032550 00 21 42.50 +03 25 50.88 11.93 NVSS
TGSSADR J002137.7+032950 00 21 37.70 +03 29 49.92 12.20 GMRTAS150M
15 NVSS J002137+032949 00 21 37.90 +03 29 48.84 12.21 NVSS
FIRST J002137.8+032952 00 21 37.90 +03 29 52.08 12.24 FIRST
16 NVSS J002135+033129 00 21 35.40 +03 31 28.92 12.64 NVSS
TGSSADR J002135.4+033141 00 21 35.40 +03 31 41.88 12.77 GMRTAS150M
FIRST J002135.8+033143 00 21 35.81 +03 31 44.04 12.86 FIRST
GLEAM J002136+033226 00 21 36.29 +03 32 26.88 13.43 GLEAMEGCAT
17 NVSS J002137+033233 00 21 37.01 +03 32 33.00 13.63 NVSS
TGSSADR J002136.9+033235 00 21 36.91 +03 32 35.88 13.63 GMRTAS150M
FIRST J002136.9+033236 00 21 36.91 +03 32 35.88 13.65 FIRST
18 NVSS J002133+033542 00 21 33.70 +03 35 42.00 15.31 NVSS

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