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 J0426.5+5437

Field

Detected Excesses
Swift-XRT image of the field for 1FGL J0426.5+5437 Swift-XRT detections in the field for 1FGL J0426.5+5437

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 04 26 14.36 +54 43 49.25 6.31 (3.6 ± 1.1) x 10-3 16 3.540 3.415

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 28 03.75 +54 34 39.15 8.27 (1.9 ± 0.8) x 10-3 7 2.386 2.352

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 1FGL J0426.5+5437 Swift-XRT image with known radio, optical and UV sources for 1FGL J0426.5+5437

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J042550.7+543851 04 25 50.71 +54 38 51.36 6.53 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J042651+543612 04 26 51.70 +54 36 11.88 2.90 NVSS
WN 0422.1+5434 04 26 08.81 +54 41 40.92 5.42 WENSS
CGPS J042608+544142 04 26 08.81 +54 41 42.00 5.42 CGPSNGPCAT
2 NVSS J042608+544142 04 26 08.71 +54 41 42.00 5.43 NVSS
TGSSADR J042608.8+544142 04 26 08.81 +54 41 43.08 5.44 GMRTAS150M
7C 042208.5+543455 04 26 08.30 +54 41 42.00 5.48 GP7C151MHZ
3 NVSS J042645+544440 04 26 45.50 +54 44 39.84 6.97 NVSS
4 NVSS J042602+543244 04 26 02.21 +54 32 44.88 7.01 NVSS
CGPS J042646+544451 04 26 46.10 +54 44 51.00 7.16 CGPSNGPCAT
5 CGPS J042627+543013 04 26 27.79 +54 30 12.96 7.72 CGPSNGPCAT
CGPS J042658+544552 04 26 58.10 +54 45 51.84 8.66 CGPSNGPCAT
6 NVSS J042658+544552 04 26 58.99 +54 45 52.92 8.72 NVSS
7 CGPS J042639+544651 04 26 39.60 +54 46 50.88 9.01 CGPSNGPCAT
VLSSr J042525.6+543639 04 25 25.61 +54 36 38.88 10.16 VLSSR
WN 0421.4+5429 04 25 24.41 +54 36 39.96 10.34 WENSS
CGPS J042524+543636 04 25 24.41 +54 36 37.08 10.34 CGPSNGPCAT
8 NVSS J042524+543636 04 25 24.31 +54 36 37.08 10.35 NVSS
TGSSADR J042524.3+543636 04 25 24.31 +54 36 37.08 10.35 GMRTAS150M
TGSSADR J042552.9+542844 04 25 52.99 +54 28 45.12 10.99 GMRTAS150M
CGPS J042552+542846 04 25 52.51 +54 28 45.84 11.01 CGPSNGPCAT
9 NVSS J042552+542841 04 25 52.61 +54 28 41.88 11.06 NVSS
WN 0421.8+5421 04 25 51.79 +54 28 32.88 11.24 WENSS
CGPS J042723+542851 04 27 23.90 +54 28 51.96 11.42 CGPSNGPCAT
10 NVSS J042723+542845 04 27 23.90 +54 28 45.84 11.51 NVSS
WN 0423.1+5419 04 27 09.79 +54 26 26.16 12.47 WENSS
TGSSADR J042709.3+542621 04 27 09.41 +54 26 21.84 12.51 GMRTAS150M
11 NVSS J042709+542620 04 27 09.41 +54 26 21.12 12.53 NVSS
CGPS J042709+542620 04 27 09.50 +54 26 21.12 12.54 CGPSNGPCAT
12 CGPS J042748+542553 04 27 48.70 +54 25 53.04 16.02 CGPSNGPCAT

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