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.

2FGL J1835.4+1036

Field

Detected Excesses

Swift-XRT image of the field for 2FGL J1835.4+1036 Swift-XRT detections in the field for 2FGL J1835.4+1036

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 18 35 51.99 +10 30 59.40 5.76 (8 ± 2) x 10-3 22 4.409 4.055

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 2FGL J1835.4+1036 Swift-XRT image with known radio, optical and UV sources for 2FGL J1835.4+1036

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J183551.5+103055 18 35 51.50 +10 30 55.08 8.45 ROSAT
2RXS J183551.4+103054 18 35 51.48 +10 30 54.36 8.46 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J183519+103506 18 35 19.20 +10 35 06.00 2.25 NVSS
[SPT2015] VLA J1835+1035 18 35 19.20 +10 35 06.00 2.25 FER2FUSRID
[SPT2015] VLA J1835+1033 18 35 32.81 +10 33 24.84 3.58 FER2FUSRID
2 NVSS J183532+103317 18 35 32.69 +10 33 16.92 3.70 NVSS
3 NVSS J183514+104359 18 35 14.40 +10 43 59.16 7.92 NVSS
4 NVSS J183542+102901 18 35 42.00 +10 29 02.04 8.53 NVSS
5 NVSS J183552+103058 18 35 52.51 +10 30 57.96 8.59 NVSS
6 NVSS J183454+104235 18 34 54.19 +10 42 34.92 9.86 NVSS
TGSSADR J183453.9+104233 18 34 53.90 +10 42 33.84 9.89 GMRTAS150M
7 NVSS J183559+103110 18 35 59.81 +10 31 10.92 9.92 NVSS
GB6 J1835+1043 18 35 59.71 +10 43 44.04 10.92 GB6
8 NVSS J183600+104404 18 36 00.60 +10 44 03.84 11.31 NVSS
DA459 18 36 11.71 +10 25 32.88 15.75 DIXON
9 NVSS J183613+102539 18 36 13.61 +10 25 39.00 16.02 NVSS

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