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 J0031.2-2320

Field

Detected Excesses
Swift-XRT image of the field for 3FGL J0031.2-2320 Swift-XRT detections in the field for 3FGL J0031.2-2320

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 00 31 20.50 -23 34 03.04 3.68 (4.7 ± 0.2) x 10-2 447 22.030 19.840
2 00 30 39.92 -23 28 18.30 4.97 (2.6 ± 0.6) x 10-3 33 4.930 4.335
3 00 31 11.22 -23 34 20.83 5.35 (1.8 ± 0.5) x 10-3 20 3.421 3.585
4 00 31 29.83 -23 31 05.99 5.31 (1.7 ± 0.5) x 10-3 20 3.603 3.448
5 00 30 32.07 -23 23 23.78 5.89 (1.5 ± 0.4) x 10-3 20 2.755 3.432
6 00 31 16.56 -23 24 47.66 5.40 (1.6 ± 0.5) x 10-3 27 3.354 3.063

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 00 31 07.97 -23 25 04.84 5.17 (1.3 ± 0.5) x 10-3 29 2.866 2.847
2 00 31 07.56 -23 25 05.46 5.20 (1.5 ± 0.5) x 10-3 27 2.840 2.791
3 00 31 43.80 -23 26 29.97 5.82 (1.1 ± 0.4) x 10-3 15 2.750 2.703
4 00 31 24.60 -23 22 20.46 6.04 (1.0 ± 0.4) x 10-3 19 2.589 2.611
5 00 31 22.18 -23 30 29.98 5.59 (1.0 ± 0.4) x 10-3 18 2.570 2.496
6 00 30 39.38 -23 30 37.23 5.40 (9 ± 4) x 10-4 16 2.519 2.356
7 00 31 14.61 -23 32 59.51 5.17 (4 ± 3) x 10-4 19 2.768 1.222

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 3FGL J0031.2-2320 Swift-XRT image with known radio, optical and UV sources for 3FGL J0031.2-2320

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J003124.1-232214 00 31 24.14 -23 22 14.52 2.67 ROSAT
2RXS J003124.1-232214 00 31 24.14 -23 22 14.52 2.67 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 PGC 801740 00 31 21.00 -23 21 33.12 1.67 PGC2003
2 NVSS J003135-232033 00 31 35.81 -23 20 33.00 4.74 NVSS
TGSSADR J003135.7-232032 00 31 35.81 -23 20 33.00 4.74 GMRTAS150M
WISH B0029.0-2337 00 31 35.90 -23 20 43.08 4.77 WISH
GLEAM J003135-232033 00 31 35.90 -23 20 34.08 4.77 GLEAMEGCAT
3 PGC 802060 00 31 37.20 -23 19 50.88 5.12 PGC2003
4 PGC 801877 00 31 44.21 -23 20 45.96 6.68 PGC2003
5 PPM 242918 00 31 40.82 -23 24 38.52 7.17 PPM
6 NVSS J003108-231314 00 31 08.40 -23 13 14.16 7.48 NVSS
7 PGC 198161 00 31 28.01 -23 28 06.96 8.11 PGC2003
GLEAM J003039-232300 00 30 39.10 -23 22 59.88 8.63 GLEAMEGCAT
8 NVSS J003038-232305 00 30 39.00 -23 23 04.92 8.67 NVSS
WISH B0028.1-2339 00 30 38.90 -23 23 04.92 8.68 WISH
TGSSADR J003038.8-232305 00 30 38.90 -23 23 04.92 8.70 GMRTAS150M
MWACS J0030.6-2323 00 30 39.00 -23 23 17.88 8.73 MWACS
9 PPM 242907 00 31 04.78 -23 29 15.00 9.01 PPM
CD-24 183 00 31 04.73 -23 29 15.00 9.01 ACRS
HIP 2443 00 31 04.75 -23 29 15.00 9.01 HIPPARCOS
10 SAO 166328 00 31 21.12 -23 11 39.48 9.01 SAO
SAO 166326 00 31 04.61 -23 29 14.64 9.01 SAO
CD-23 185 00 31 20.93 -23 11 38.76 9.02 ACRS
SAO 166326 00 31 04.73 -23 29 15.72 9.02 HIC
PPM 242912 00 31 20.93 -23 11 38.40 9.02 PPM
11 NVSS J003047-232759 00 30 48.00 -23 28 00.12 9.70 NVSS
12 PGC 802050 00 31 57.79 -23 19 53.04 9.82 PGC2003
13 SAO 166321 00 30 31.97 -23 23 15.72 10.27 SAO
CD-24 182 00 30 31.94 -23 23 15.36 10.27 ACRS
PPM 242900 00 30 31.94 -23 23 15.36 10.27 PPM
14 PGC 800074 00 31 28.90 -23 30 42.84 10.64 PGC2003
15 NVSS J003138-231124 00 31 38.81 -23 11 25.08 10.65 NVSS
16 PGC 801658 00 30 27.79 -23 22 00.84 10.96 PGC2003
17 CD-24 188 00 31 49.01 -23 31 25.32 13.36 ACRS
PPM 242921 00 31 49.06 -23 31 24.96 13.36 PPM
SAO 166334 00 31 49.01 -23 31 27.48 13.39 SAO
18 PPM 723572 00 32 00.96 -23 09 54.36 14.98 PPM

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