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.

4FGL J1824.2+1231

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1824.2+1231 Swift-XRT detections in the field for 4FGL J1824.2+1231

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 18 24 08.69 +12 32 33.77 6.52 (1.0 ± 0.3) x 10-2 18 3.858 3.906

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1824.2+1231 Swift-XRT image with known radio, optical and UV sources for 4FGL J1824.2+1231

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J182436.1+124347 18 24 36.12 +12 43 48.00 13.00 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 PGC 2809768 18 24 05.40 +12 30 10.08 2.96 PGC2003
2 PGC 2809797 18 24 24.60 +12 35 02.04 3.91 PGC2003
3 NVSS J182430+122703 18 24 30.89 +12 27 02.88 6.07 NVSS
TGSSADR J182348.3+123210 18 23 48.31 +12 32 09.96 6.65 GMRTAS150M
4 NVSS J182348+123209 18 23 48.31 +12 32 08.88 6.65 NVSS
5 PGC 1409839 18 23 54.60 +12 27 14.04 6.86 PGC2003
6 PGC 2809765 18 24 04.01 +12 38 20.04 7.10 PGC2003
7 NVSS J182433+123815 18 24 33.31 +12 38 15.00 7.77 NVSS
8 PPM 134685 18 24 50.40 +12 32 40.92 8.56 PPM
BD+12 3513 18 24 50.42 +12 32 40.92 8.57 ACRS
9 NVSS J182356+122401 18 23 56.59 +12 24 02.16 9.05 NVSS
10 WDS J18241+1241 18 24 06.00 +12 40 59.88 9.48 WDS
11 PPM 134665 18 24 06.24 +12 22 21.36 9.72 PPM
BD+12 3509 18 24 06.24 +12 22 21.00 9.73 ACRS
12 NVSS J182347+123923 18 23 47.59 +12 39 24.12 10.19 NVSS
13 NVSS J182403+124213 18 24 04.01 +12 42 12.96 10.78 NVSS
14 NVSS J182458+122643 18 24 58.01 +12 26 44.16 11.56 NVSS
15 NVSS J182353+124216 18 23 53.90 +12 42 15.84 11.72 NVSS
16 NVSS J182357+122033 18 23 57.79 +12 20 33.00 12.06 NVSS
17 PGC 1407756 18 24 43.10 +12 20 21.12 13.30 PGC2003
18 OU+139 18 24 55.80 +12 43 44.04 15.45 DIXON

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