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 J0340.4+5302

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J0340.4+5302 Swift-XRT detections in the field for 4FGL J0340.4+5302

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 03 39 31.85 +53 06 44.66 5.76 (4.3 ± 1.1) x 10-3 23 4.387 4.056
2 03 40 37.21 +53 19 23.80 6.78 (2.8 ± 0.9) x 10-3 11 2.828 3.117

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J0340.4+5302 Swift-XRT image with known radio, optical and UV sources for 4FGL J0340.4+5302

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J034118.5+530819 03 41 18.50 +53 08 19.68 9.95 ROSAT
2 2RXS J033928.5+530720 03 39 28.51 +53 07 21.00 10.11 ROSAT
1RXS J033928.5+530724 03 39 28.51 +53 07 23.88 10.14 ROSAT
3 1WGA J0339.4+5306 03 39 24.29 +53 07 11.64 10.59 ROSAT
4 1RXS J034125.8+525531 03 41 25.80 +52 55 31.44 11.15 ROSAT
2RXS J034125.8+525530 03 41 25.87 +52 55 30.00 11.17 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
CGPS J034015+530603 03 40 15.10 +53 06 03.96 4.24 CGPSNGPCAT
1 NVSS J034014+530609 03 40 14.71 +53 06 09.00 4.35 NVSS
2 CGPS J034000+530000 03 40 00.10 +53 00 00.00 4.51 CGPSNGPCAT
3 NVSS J034005+530658 03 40 05.30 +53 06 59.04 5.75 NVSS
CGPS J034004+530704 03 40 04.90 +53 07 04.08 5.86 CGPSNGPCAT
4 NVSS J033957+525815 03 39 57.10 +52 58 14.88 5.89 NVSS
5 NVSS J034116+525902 03 41 16.80 +52 59 02.04 8.21 NVSS
TGSSADR J034117.1+525909 03 41 17.21 +52 59 08.88 8.22 GMRTAS150M
WN 0337.5+5249 03 41 17.40 +52 59 12.84 8.22 WENSS
CGPS J034117+525901 03 41 17.11 +52 59 02.04 8.26 CGPSNGPCAT
QORG J034127.0+530129 03 41 27.00 +53 01 28.92 9.14 QORGCAT
WN 0337.6+5251 03 41 27.19 +53 01 32.16 9.16 WENSS
6 NVSS J034127+530122 03 41 27.19 +53 01 23.16 9.18 NVSS
TGSSADR J034127.3+530122 03 41 27.41 +53 01 22.08 9.21 GMRTAS150M
CGPS J034127+530124 03 41 27.50 +53 01 24.96 9.22 CGPSNGPCAT
7 NVSS J034046+531205 03 40 46.49 +53 12 06.12 10.37 NVSS
8 QORG J033924.1+530718 03 39 24.10 +53 07 18.12 10.66 QORGCAT
PGC 2798000 03 39 38.40 +52 52 53.04 11.77 PGC2003
CGPS J033937+525257 03 39 37.10 +52 52 57.00 11.84 CGPSNGPCAT
9 NVSS J033937+525239 03 39 37.61 +52 52 39.00 12.03 NVSS
10 CGPS J033908+525902 03 39 08.40 +52 59 03.12 12.15 CGPSNGPCAT
CGPS J034121+525310 03 41 21.19 +52 53 11.04 12.22 CGPSNGPCAT
11 NVSS J034121+525311 03 41 21.41 +52 53 12.12 12.22 NVSS
CGPS J034107+531245 03 41 07.20 +53 12 45.00 12.23 CGPSNGPCAT
CGPS J033931+531114 03 39 31.61 +53 11 13.92 12.24 CGPSNGPCAT
TGSSADR J033931.6+531115 03 39 31.61 +53 11 16.08 12.25 GMRTAS150M
12 NVSS J033931+531115 03 39 31.20 +53 11 15.00 12.28 NVSS
13 NVSS J034106+531251 03 41 07.01 +53 12 51.12 12.29 NVSS
CGPS J034134+530940 03 41 34.80 +53 09 41.04 12.72 CGPSNGPCAT
14 NVSS J034134+530943 03 41 34.70 +53 09 42.84 12.73 NVSS
CGPS J033908+530906 03 39 08.21 +53 09 06.12 13.63 CGPSNGPCAT
15 NVSS J033908+530910 03 39 08.40 +53 09 10.08 13.64 NVSS
16 CGPS J033908+531347 03 39 08.11 +53 13 48.00 16.52 CGPSNGPCAT

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