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 49.48 -33 28 29.22 3.59 (1.25 ± 0.04) x 10-1 1028 30.200 30.660
2 20 36 18.40 -33 30 04.08 4.76 (4.3 ± 0.9) x 10-3 42 5.359 5.063
3 20 36 04.01 -33 29 02.38 4.95 (3.7 ± 0.8) x 10-3 33 5.211 5.017
4 20 36 55.27 -33 25 19.98 6.12 (1.6 ± 0.5) x 10-3 15 2.980 3.022

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 38.57 -33 25 14.71 5.64 (1.5 ± 0.5) x 10-3 19 3.300 2.783
2 20 37 08.36 -33 24 26.52 5.53 (1.4 ± 0.6) x 10-3 20 3.218 2.577
3 20 36 49.48 -33 28 29.22 3.59 (6 ± 8) x 10-4 1026 5.492 0.735
4 20 36 49.48 -33 28 29.22 3.59 N/A 1028 3.775 N/A
5 20 36 49.48 -33 28 29.22 3.59 N/A 1033 3.484 N/A
6 20 36 49.48 -33 28 29.39 3.59 N/A 1026 2.724 N/A

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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