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 07.86 +68 01 24.55 4.90 (1.1 ± 0.2) x 10-2 49 6.591 6.865
2 04 03 20.25 +68 08 20.39 5.76 (4.6 ± 1.1) x 10-3 23 4.036 4.101

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 02 47.30 +68 04 52.08 8.62 (2.1 ± 0.7) x 10-3 9 2.467 2.770
2 04 04 37.63 +68 09 16.68 6.12 (1.9 ± 0.8) x 10-3 8 2.505 2.389
3 04 03 43.26 +68 15 33.81 5.96 (2.0 ± 0.8) x 10-3 12 2.451 2.364
4 04 03 36.58 +68 09 00.35 7.48 (1.7 ± 0.7) x 10-3 9 2.271 2.352
5 04 00 42.00 +68 05 01.05 7.71 (1.6 ± 0.7) x 10-3 8 2.284 2.330
6 04 04 22.36 +68 12 04.03 5.70 (1.8 ± 0.8) x 10-3 9 2.467 2.155
7 04 04 23.46 +68 12 52.59 5.82 (1.3 ± 0.8) x 10-3 7 2.259 1.569

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
QORG J040305.4+681128 04 03 05.40 +68 11 27.96 4.54 QORGCAT
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
4 NVSS J040231+681923 04 02 31.10 +68 19 23.88 8.84 NVSS
QORG J040230.6+681926 04 02 30.60 +68 19 26.04 8.86 QORGCAT
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
7 PPM 14622 04 03 26.26 +68 19 54.48 11.24 PPM
BD+67 302 04 03 26.28 +68 19 54.48 11.24 ACRS
SAO 12997 04 03 27.22 +68 19 52.68 11.27 SAO

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