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 J2309.0+5428

Field

Detected Excesses
Swift-XRT image of the field for 3FGL J2309.0+5428 Swift-XRT detections in the field for 3FGL J2309.0+5428

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 23 08 48.54 +54 26 12.20 4.61 (8.6 ± 1.3) x 10-3 61 6.595 6.479

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 23 08 54.58 +54 30 33.16 5.64 (2.1 ± 0.8) x 10-3 19 2.535 2.791

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 3FGL J2309.0+5428 Swift-XRT image with known radio, optical and UV sources for 3FGL J2309.0+5428

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J230852.3+542559 23 08 52.39 +54 25 59.88 2.82 ROSAT
1RXS J230852.2+542559 23 08 52.20 +54 25 59.16 2.84 ROSAT
1RXS J230852.2+542559 23 08 52.20 +54 25 59.16 2.84 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J230848+542612 23 08 48.79 +54 26 12.84 2.89 NVSS
2 NVSS J230900+543132 23 09 00.60 +54 31 32.16 2.98 NVSS
WN 2306.7+5405 23 08 55.30 +54 22 09.12 6.45 WENSS
3 NVSS J230854+542208 23 08 54.91 +54 22 08.04 6.47 NVSS
TGSSADR J230855.0+542206 23 08 55.01 +54 22 06.96 6.49 GMRTAS150M
TGSSADR J230954.2+543606 23 09 54.19 +54 36 06.12 10.85 GMRTAS150M
4 NVSS J230955+543628 23 09 55.51 +54 36 28.08 11.24 NVSS
WN 2307.7+5420 23 09 55.90 +54 36 30.96 11.31 WENSS
TGSSADR J230956.7+543642 23 09 56.81 +54 36 42.84 11.54 GMRTAS150M
5 NVSS J230811+543814 23 08 11.30 +54 38 13.92 12.02 NVSS

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