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 J2037.0-3329

Field

Detected Excesses

Swift-XRT image of the field for 1FGL J2037.0-3329 Swift-XRT detections in the field for 1FGL J2037.0-3329

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 20 36 49.55 -33 28 29.23 3.65 (1.09 ± 0.05) x 10-1 577 22.690 22.960
2 20 36 18.56 -33 30 06.61 5.76 (3.2 ± 0.9) x 10-3 18 3.533 3.470

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 37 38.71 -33 25 15.29 5.82 (2.2 ± 0.7) x 10-3 17 3.239 2.948
2 20 37 08.78 -33 24 49.72 6.52 (2.1 ± 0.8) x 10-3 15 2.411 2.702
3 20 36 33.22 -33 36 48.74 5.70 (1.4 ± 0.6) x 10-3 16 2.423 2.198

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 1FGL J2037.0-3329 Swift-XRT image with known radio, optical and UV sources for 1FGL J2037.0-3329

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
2RXS J203650.9-332816 20 36 50.98 -33 28 16.68 3.25 ROSAT
2RXS J203650.9-332816 20 36 50.98 -33 28 16.68 3.25 ROSAT
1RXS J203650.9-332817 20 36 50.90 -33 28 17.04 3.26 ROSAT
1RXS J203650.9-332817 20 36 50.90 -33 28 17.04 3.26 ROSAT
1RXS J203650.9-332817 20 36 50.90 -33 28 19.20 3.42 ROSAT
1 XMMSL2 J203650.0-332828 20 36 49.87 -33 28 28.20 3.43 XMM-NEWTON
XMMSL2 J203650.0-332828 20 36 49.87 -33 28 28.20 3.43 XMM-NEWTON
1RXS J203650.9-332817 20 36 49.49 -33 28 30.72 3.50 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J203650-332831 20 36 49.99 -33 28 31.08 3.39 NVSS
2 NVSS J203721-333736 20 37 21.00 -33 37 36.84 9.03 NVSS
GLEAM J203634-333546 20 36 34.80 -33 35 47.04 9.29 GLEAMEGCAT
3 NVSS J203634-333559 20 36 34.20 -33 35 58.92 9.53 NVSS
TGSSADR J203634.0-333559 20 36 34.10 -33 36 00.00 9.56 GMRTAS150M
SUMSS J203633-333601 20 36 34.01 -33 36 01.08 9.59 SUMSS
4 NVSS J203625-333415 20 36 25.10 -33 34 14.88 9.95 NVSS
5 NVSS J203641-331931 20 36 41.11 -33 19 32.16 10.93 NVSS
6 NVSS J203622-334000 20 36 22.51 -33 40 00.12 14.14 NVSS

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