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 J0402.2+6810

Field

Detected Excesses

Swift-XRT image of the field for 1FGL J0402.2+6810 Swift-XRT detections in the field for 1FGL J0402.2+6810

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 04 02 07.76 +68 01 24.73 5.08 (10 ± 2) x 10-3 42 6.137 6.372
2 04 03 20.33 +68 08 19.96 5.89 (4.1 ± 1.1) x 10-3 21 4.069 3.844

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 04 03 42.89 +68 15 33.83 6.65 (1.9 ± 0.8) x 10-3 9 2.527 2.452

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 1FGL J0402.2+6810 Swift-XRT image with known radio, optical and UV sources for 1FGL J0402.2+6810


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
1 NVSS J040305+681128 04 03 04.99 +68 11 29.04 4.51 NVSS
2 NVSS J040118+681234 04 01 18.79 +68 12 34.92 5.76 NVSS
3 NVSS J040249+680251 04 02 49.61 +68 02 51.00 8.36 NVSS
0357+6810 04 02 33.50 +68 19 00.12 8.47 NORTH6CM
GB6 J0402+6819 04 02 27.31 +68 19 05.16 8.48 GB6
WN 0357.5+6811 04 02 30.91 +68 19 23.16 8.81 WENSS
TGSSADR J040230.7+681923 04 02 30.70 +68 19 23.16 8.82 GMRTAS150M
4 NVSS J040231+681923 04 02 31.10 +68 19 23.88 8.84 NVSS
VLSSr J040231.6+681924 04 02 31.61 +68 19 24.96 8.86 VLSSR
5 NVSS J040243+682039 04 02 43.70 +68 20 39.12 10.30 NVSS
6 NVSS J040345+681749 04 03 45.10 +68 17 49.92 10.85 NVSS

Penn State University Goddard Space Flight Center Swift