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 J1733.5-3941

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J1733.5-3941 Swift-XRT detections in the field for 3FGL J1733.5-3941

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 17 32 35.30 -39 39 31.37 6.41 (8 ± 2) x 10-3 19 3.934 4.202

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 17 33 27.44 -39 42 16.30 7.71 (3.4 ± 1.4) x 10-3 9 2.422 2.316

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J1733.5-3941 Swift-XRT image with known radio, optical and UV sources for 3FGL J1733.5-3941


No known X-ray or gamma ray sources found.

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
MGPS J173327-394213 17 33 27.31 -39 42 14.04 0.99 MGPS2
1 NVSS J173327-394214 17 33 27.31 -39 42 15.12 1.01 NVSS
2 NVSS J173309-393954 17 33 09.60 -39 39 55.08 4.83 NVSS
3 NVSS J173329-393515 17 33 29.90 -39 35 16.08 6.72 NVSS
4 NVSS J173338-393437 17 33 38.81 -39 34 36.84 7.45 NVSS
5 NVSS J173308-395102 17 33 09.00 -39 51 02.16 10.13 NVSS

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