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 J1846.0-0831

Field

Detected Excesses

Swift-XRT image of the field for 1FGL J1846.0-0831 Swift-XRT detections in the field for 1FGL J1846.0-0831


No detected excesses found.

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 18 46 27.03 -08 30 54.17 6.12 (3.2 ± 1.1) x 10-3 19 3.033 2.990
2 18 45 55.32 -08 28 08.22 6.31 (2.9 ± 1.1) x 10-3 15 2.551 2.580
3 18 46 18.32 -08 20 24.42 6.93 (2.0 ± 0.9) x 10-3 8 2.318 2.286

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 1FGL J1846.0-0831 Swift-XRT image with known radio, optical and UV sources for 1FGL J1846.0-0831

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J184625.8-082656 18 46 25.80 -08 26 56.40 6.59 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J184619-083528 18 46 19.70 -08 35 27.96 5.56 NVSS
2 NVSS J184634-082801 18 46 34.61 -08 28 00.84 7.88 NVSS
3 NVSS J184644-083139 18 46 44.40 -08 31 39.00 9.66 NVSS
4 NVSS J184524-083251 18 45 24.41 -08 32 52.08 10.26 NVSS

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