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 J2209.8-0450

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J2209.8-0450 Swift-XRT detections in the field for 3FGL J2209.8-0450

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 22 09 41.35 -04 51 08.20 5.02 (7.2 ± 1.4) x 10-3 37 5.314 5.010
2 22 09 28.63 -04 54 55.90 5.35 (5.7 ± 1.2) x 10-3 30 4.927 4.845
3 22 09 31.51 -04 45 28.38 5.82 (5.7 ± 1.2) x 10-3 25 4.650 4.760
4 22 09 41.40 -04 38 27.84 5.59 (5.1 ± 1.1) x 10-3 25 4.744 4.584
5 22 09 55.43 -04 33 55.82 6.12 (4.0 ± 0.9) x 10-3 20 4.269 4.213
6 22 09 44.77 -04 53 33.90 7.27 (2.7 ± 0.9) x 10-3 13 2.949 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 22 09 34.37 -04 39 46.26 7.97 (2.3 ± 0.8) x 10-3 10 2.721 2.979
2 22 10 12.74 -05 00 54.14 7.71 (1.6 ± 0.7) x 10-3 7 2.320 2.326

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J2209.8-0450 Swift-XRT image with known radio, optical and UV sources for 3FGL J2209.8-0450

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J220942.1-045116 22 09 42.14 -04 51 16.20 2.50 ROSAT
2RXS J220942.1-045116 22 09 42.14 -04 51 16.20 2.50 ROSAT
1RXS J220942.1-045120 22 09 42.10 -04 51 20.52 2.52 ROSAT
2 2E 2206.9-0454 22 09 35.35 -04 39 40.68 12.06 EINSTEIN
2E 2206.9-0454 22 09 35.35 -04 39 40.32 12.06 EINSTEIN
null 22 09 35.23 -04 39 40.32 12.07 EINSTEIN

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J220941-045111 22 09 41.71 -04 51 11.88 2.59 NVSS
FIRST J220941.7-045110 22 09 41.71 -04 51 11.16 2.59 FIRST
2 FIRST J220944.7-044632 22 09 44.81 -04 46 32.88 4.80 FIRST
FIRST J220953.5-044604 22 09 53.50 -04 46 05.16 4.92 FIRST
3 NVSS J220953-044604 22 09 53.50 -04 46 04.08 4.93 NVSS
4 FIRST J221001.6-044457 22 10 01.70 -04 44 57.84 6.48 FIRST
5 FIRST J220926.0-044907 22 09 25.99 -04 49 06.96 6.76 FIRST
6 NVSS J221005-044502 22 10 05.11 -04 45 02.88 6.76 NVSS
GLEAM J221004-044456 22 10 04.39 -04 44 56.04 6.78 GLEAMEGCAT
FIRST J221005.4-044502 22 10 05.40 -04 45 02.88 6.80 FIRST
TGSSADR J221005.3-044501 22 10 05.40 -04 45 01.08 6.82 GMRTAS150M
7 FIRST J220927.4-044550 22 09 27.41 -04 45 51.12 8.02 FIRST
8 NVSS J220917-045851 22 09 17.69 -04 58 50.88 11.64 NVSS
TGSSADR J221036.5-044716 22 10 36.50 -04 47 17.16 11.68 GMRTAS150M
9 NVSS J221036-044718 22 10 36.60 -04 47 17.88 11.68 NVSS
FIRST J220917.0-045845 22 09 16.99 -04 58 45.12 11.69 FIRST
FIRST J221036.6-044717 22 10 36.70 -04 47 17.88 11.70 FIRST
GLEAM J221036-044710 22 10 36.79 -04 47 09.96 11.77 GLEAMEGCAT
10 NVSS J221027-050131 22 10 27.50 -05 01 32.16 13.75 NVSS
FIRST J221027.7-050131 22 10 27.70 -05 01 32.16 13.78 FIRST
11 FIRST J221033.1-050132 22 10 33.19 -05 01 32.88 14.70 FIRST

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