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.

4FGL J1841.6+7113

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1841.6+7113 Swift-XRT detections in the field for 4FGL J1841.6+7113

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 18 42 28.22 +71 14 25.52 6.78 (4.4 ± 1.2) x 10-3 15 3.422 3.657

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 41 07.06 +71 14 17.44 7.27 (3.4 ± 1.2) x 10-3 11 2.725 2.844
2 18 42 02.26 +71 16 14.84 7.09 (2.6 ± 1.1) x 10-3 11 2.439 2.517
3 18 40 09.34 +71 08 15.06 7.71 (2.0 ± 0.8) x 10-3 8 2.376 2.359

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1841.6+7113 Swift-XRT image with known radio, optical and UV sources for 4FGL J1841.6+7113

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 XMMSL2 J184026.0+710345 18 40 26.04 +71 03 45.36 11.58 XMM-NEWTON
XMMSL2 J184026.0+710345 18 40 26.04 +71 03 45.36 11.58 XMM-NEWTON
2 1RXS J184028.2+712356 18 40 28.20 +71 23 56.40 11.85 ROSAT
2RXS J184028.3+712357 18 40 28.37 +71 23 57.84 11.86 ROSAT
2RXS J184028.3+712357 18 40 28.37 +71 23 57.84 11.86 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J184133+711117 18 41 33.00 +71 11 17.16 2.43 NVSS
QORG J184132.6+711109 18 41 32.59 +71 11 08.88 2.57 QORGCAT
2 GB6 J1842+7115 18 42 05.90 +71 15 28.08 2.72 GB6
3 NVSS J184202+711614 18 42 02.59 +71 16 14.88 3.14 NVSS
WN 1842.6+7113 18 42 01.80 +71 16 17.04 3.14 WENSS
TGSSADR J184202.4+711616 18 42 02.50 +71 16 15.96 3.16 GMRTAS150M
4 PGC 2741238 18 41 03.70 +71 10 09.12 4.59 PGC2003
5 NVSS J184113+712139 18 41 13.70 +71 21 38.88 8.32 NVSS
6 NVSS J184242+710631 18 42 42.00 +71 06 32.04 8.64 NVSS
PGC 2740796 18 42 42.60 +71 06 32.04 8.66 PGC2003
QORG J184242.8+710631 18 42 42.79 +71 06 30.96 8.69 QORGCAT
7 NVSS J184047+710515 18 40 47.59 +71 05 15.00 9.42 NVSS
8 SAO 9226 18 43 42.79 +71 05 46.68 12.58 SAO
PPM 9975 18 43 42.77 +71 05 44.52 12.60 PPM
BD+70 1024 18 43 42.82 +71 05 44.88 12.60 ACRS
9 PGC 62214 18 39 49.99 +71 02 30.84 14.28 PGC2003
QORG J183916.6+712439 18 39 16.61 +71 24 38.88 15.97 QORGCAT
10 NVSS J183916+712440 18 39 16.20 +71 24 39.96 16.01 NVSS

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