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 J2300.0+4053

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J2300.0+4053 Swift-XRT detections in the field for 3FGL J2300.0+4053

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 23 00 12.36 +40 52 23.33 3.66 (4.3 ± 0.2) x 10-2 544 21.740 22.380
2 23 00 23.96 +41 07 25.84 3.93 (1.38 ± 0.12) x 10-2 164 12.470 11.960
3 22 58 49.96 +40 56 10.90 3.94 (1.29 ± 0.12) x 10-2 141 11.070 10.890
4 22 58 55.45 +40 55 58.23 4.12 (3.9 ± 0.8) x 10-3 53 6.663 5.178
5 22 59 19.27 +40 48 49.98 5.02 (2.0 ± 0.5) x 10-3 30 4.711 4.358
6 22 59 19.57 +40 56 51.42 5.05 (2.0 ± 0.5) x 10-3 29 4.271 4.227
7 22 59 21.73 +40 53 00.09 4.92 (1.4 ± 0.4) x 10-3 21 3.489 3.255

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 22 59 43.58 +40 56 17.08 5.59 (1.0 ± 0.4) x 10-3 23 2.999 2.951
2 22 59 27.34 +40 52 26.07 5.05 (1.0 ± 0.4) x 10-3 31 3.471 2.618
3 22 58 47.05 +40 46 28.32 6.41 (8 ± 3) x 10-4 10 2.547 2.608
4 22 59 27.44 +40 52 26.33 5.08 (7 ± 3) x 10-4 31 2.656 2.335
5 22 58 34.37 +40 53 40.43 5.76 (7 ± 3) x 10-4 10 2.434 2.307
6 22 59 32.20 +40 47 49.77 5.53 (7 ± 3) x 10-4 16 2.885 2.234

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J2300.0+4053 Swift-XRT image with known radio, optical and UV sources for 3FGL J2300.0+4053

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 XMMSL2 J230012.6+405229 23 00 12.46 +40 52 28.92 1.67 XMM-NEWTON
XMMSL2 J230012.6+405229 23 00 12.46 +40 52 28.92 1.67 XMM-NEWTON
1RXS J230012.3+405225 23 00 12.31 +40 52 24.96 1.69 ROSAT
1RXS J230012.3+405225 23 00 12.31 +40 52 24.96 1.69 ROSAT
2RXS J230012.3+405223 23 00 12.36 +40 52 23.88 1.71 ROSAT
2RXS J230012.3+405223 23 00 12.36 +40 52 23.88 1.71 ROSAT
1RXS J230012.3+405225 23 00 12.48 +40 52 24.24 1.72 ROSAT
2 XMMSL2 J225923.2+404453 22 59 23.35 +40 44 53.16 11.84 XMM-NEWTON
XMMSL2 J225923.2+404453 22 59 23.35 +40 44 53.16 11.84 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
WN 2257.8+4036 23 00 12.31 +40 52 31.08 1.63 WENSS
1 NVSS J230012+405224 23 00 12.50 +40 52 23.88 1.72 NVSS
2 NVSS J230004+404806 23 00 04.20 +40 48 06.84 5.47 NVSS
3 NVSS J225951+405856 22 59 51.70 +40 58 55.92 5.98 NVSS
4 NVSS J230018+405951 23 00 18.60 +40 59 52.08 6.74 NVSS
5 NVSS J230035+404751 23 00 34.99 +40 47 52.08 7.94 NVSS
6 NVSS J230008+404500 23 00 08.81 +40 45 01.08 8.58 NVSS
WN 2257.8+4028 23 00 08.81 +40 44 58.92 8.61 WENSS
TGSSADR J230008.9+404457 23 00 08.90 +40 44 57.84 8.63 GMRTAS150M
7 NVSS J225904+404913 22 59 04.90 +40 49 14.16 12.31 NVSS
8 NVSS J225932+404301 22 59 32.11 +40 43 00.84 12.33 NVSS
WN 2258.1+4049 23 00 27.60 +41 05 17.88 12.43 WENSS
9 NVSS J230048+404408 23 00 48.91 +40 44 08.88 12.46 NVSS
10 NVSS J230027+410521 23 00 27.60 +41 05 21.84 12.49 NVSS
WN 2258.4+4027 23 00 48.50 +40 44 03.12 12.50 WENSS
WN 2257.0+4048 22 59 19.51 +41 04 50.16 14.25 WENSS
11 NVSS J225919+410449 22 59 19.39 +41 04 49.08 14.25 NVSS

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