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.

3FGL J2042.4+4209

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J2042.4+4209 Swift-XRT detections in the field for 3FGL J2042.4+4209

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 20 41 47.36 +42 00 33.31 5.64 (3.4 ± 1.0) x 10-3 17 3.647 3.409

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 20 42 30.10 +42 19 59.32 6.12 (2.2 ± 0.8) x 10-3 13 2.733 2.832
2 20 41 21.06 +42 13 42.89 5.96 (1.7 ± 0.9) x 10-3 10 2.512 1.982

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J2042.4+4209 Swift-XRT image with known radio, optical and UV sources for 3FGL J2042.4+4209


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 J204221+420940 20 42 21.91 +42 09 41.04 1.12 NVSS
2 MITG J2042+4210 20 42 20.40 +42 10 24.96 1.79 MITGB6CM
3 GPA 081.96-0.09 20 42 39.60 +42 09 50.04 2.35 GPA
4 NVSS J204213+420949 20 42 13.20 +42 09 48.96 2.71 NVSS
5 MITG J2042+4209 20 42 47.69 +42 09 01.08 3.77 MITGB6CM
6 NVSS J204206+420849 20 42 06.60 +42 08 49.92 3.87 NVSS
7 [WBH2005] G81.972-0.007 20 42 19.20 +42 13 27.12 4.51 WBHGP20CM
8 NVSS J204202+420958 20 42 01.99 +42 09 57.96 4.77 NVSS
9 MITG J2042+4204 20 42 34.99 +42 04 26.04 4.96 MITGB6CM
10 NVSS J204201+421034 20 42 01.20 +42 10 35.04 5.05 NVSS
11 NVSS J204258+421046 20 42 58.01 +42 10 45.84 5.89 NVSS
12 GB6 J2042+4203 20 42 41.50 +42 03 11.16 6.55 GB6
13 NVSS J204219+420235 20 42 19.61 +42 02 35.88 6.75 NVSS
[WBH2005] G81.828-0.118 20 42 18.70 +42 02 33.00 6.84 WBHGP20CM
14 NVSS J204301+421224 20 43 01.39 +42 12 24.84 7.07 NVSS
15 NVSS J204237+420207 20 42 37.90 +42 02 08.16 7.32 NVSS
16 NVSS J204250+421525 20 42 49.99 +42 15 25.92 7.51 NVSS
17 NVSS J204255+421437 20 42 55.61 +42 14 36.96 7.53 NVSS
18 NVSS J204209+420146 20 42 09.70 +42 01 46.92 8.11 NVSS
19 NVSS J204258+421458 20 42 58.99 +42 14 58.92 8.23 NVSS
20 NVSS J204212+421704 20 42 12.60 +42 17 03.84 8.34 NVSS
21 R75 20 42 30.10 +42 00 48.96 8.38 DIXON
22 MITG J2043+4213 20 43 07.20 +42 13 32.88 8.56 MITGB6CM
23 MITG J2043+4208a 20 43 15.50 +42 08 04.92 8.98 MITGB6CM
24 NVSS J204301+420207 20 43 01.90 +42 02 08.16 9.53 NVSS
25 MITG J2042+4218a 20 42 14.30 +42 18 25.92 9.55 MITGB6CM
26 MITG J2043+4202 20 43 06.00 +42 02 25.08 9.86 MITGB6CM
27 NVSS J204233+421859 20 42 34.01 +42 18 59.04 9.87 NVSS
28 NVSS J204140+421355 20 41 40.10 +42 13 54.84 9.96 NVSS
29 MITG J2042+4218b 20 42 51.10 +42 18 23.04 10.18 MITGB6CM
30 NVSS J204143+421534 20 41 43.20 +42 15 34.92 10.39 NVSS
31 NVSS J204242+421914 20 42 42.10 +42 19 14.16 10.41 NVSS
32 MITG J2041+4205 20 41 33.50 +42 05 17.16 10.73 MITGB6CM
33 GB6 J2042+4158 20 42 26.59 +41 58 23.16 10.81 GB6
34 GB6 J2042+4219 20 42 02.21 +42 19 08.04 10.98 GB6
35 NVSS J204202+422001 20 42 02.90 +42 20 02.04 11.74 NVSS
36 [WBH2005] G82.115-0.166 20 43 28.20 +42 14 20.04 12.39 WBHGP20CM
37 NVSS J204258+422049 20 42 58.70 +42 20 49.92 13.00 NVSS
38 MITG J2043+4157a 20 43 00.79 +41 57 18.00 13.41 MITGB6CM
39 WSRTGP 2041+4210 20 43 05.21 +42 21 07.92 13.85 WSRTGP
40 NVSS J204135+421935 20 41 36.00 +42 19 36.12 14.10 NVSS
41 MITG J2041+4158 20 41 37.01 +41 58 30.00 14.21 MITGB6CM
42 MITG J2041+4218 20 41 26.71 +42 18 10.08 14.38 MITGB6CM
43 NVSS J204135+422059 20 41 35.11 +42 20 58.92 15.26 NVSS

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