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 3.543 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 2.385 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
QORG J042652.1+543611 04 26 52.10 +54 36 11.16 2.95 QORGCAT
WN 0422.1+5434 04 26 08.81 +54 41 40.92 5.42 WENSS
2 NVSS J042608+544142 04 26 08.71 +54 41 42.00 5.43 NVSS
7C 042208.5+543455 04 26 08.30 +54 41 42.00 5.48 GP7C151MHZ
3 SAO 24608 04 26 26.09 +54 43 14.16 5.54 SAO
HIP 20720 04 26 26.04 +54 43 14.16 5.54 HIPPARCOS
HD 232951 04 26 26.04 +54 43 14.52 5.55 HIC
PPM 29141 04 26 26.02 +54 43 14.52 5.55 PPM
BD+54 807 04 26 26.04 +54 43 15.24 5.56 ACRS
4 NVSS J042645+544440 04 26 45.50 +54 44 39.84 6.97 NVSS
5 NVSS J042602+543244 04 26 02.21 +54 32 44.88 7.01 NVSS
QORG J042602.2+543244 04 26 02.21 +54 32 44.16 7.02 QORGCAT
6 PGC 2471506 04 26 34.70 +54 30 06.12 7.76 PGC2003
7 NVSS J042658+544552 04 26 58.99 +54 45 52.92 8.72 NVSS
8 WDS J04254+5438 04 25 24.00 +54 37 59.88 10.32 WDS
WN 0421.4+5429 04 25 24.41 +54 36 39.96 10.34 WENSS
9 NVSS J042524+543636 04 25 24.31 +54 36 37.08 10.35 NVSS
10 IQ Cam 04 26 06.91 +54 28 18.12 10.41 RITTERRBIN
IQ Cam 04 26 06.91 +54 28 18.12 10.41 GCVS
11 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
12 NVSS J042723+542845 04 27 23.90 +54 28 45.84 11.51 NVSS
13 BD+54 770 04 27 57.43 +54 38 08.88 11.89 ACRS
PPM 29163 04 27 57.48 +54 38 08.16 11.89 PPM
WN 0423.1+5419 04 27 09.79 +54 26 26.16 12.47 WENSS
14 NVSS J042709+542620 04 27 09.41 +54 26 21.12 12.53 NVSS
15 HD 232946 04 25 33.50 +54 49 07.32 14.37 HIC
PPM 29131 04 25 33.48 +54 49 07.32 14.37 PPM
BD+54 766 04 25 33.48 +54 49 07.32 14.37 ACRS
HIP 20655 04 25 33.48 +54 49 07.68 14.37 HIPPARCOS
SAO 24599 04 25 33.46 +54 49 07.68 14.38 SAO

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