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 J1220.1-2458

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1220.1-2458 Swift-XRT detections in the field for 4FGL J1220.1-2458

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 12 20 14.45 -24 59 49.16 3.80 (6.9 ± 0.4) x 10-2 276 14.880 15.520

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 12 20 35.47 -25 01 35.34 6.12 (2.6 ± 1.0) x 10-3 15 2.879 2.737
2 12 20 23.84 -24 54 46.29 6.04 (2.5 ± 1.0) x 10-3 18 2.746 2.541
3 12 19 26.74 -25 06 08.38 5.82 (2.5 ± 1.0) x 10-3 11 2.571 2.416
4 12 19 35.43 -24 57 12.70 6.12 (2.2 ± 0.9) x 10-3 16 2.588 2.410
5 12 19 50.23 -25 11 50.08 6.52 (2.2 ± 0.9) x 10-3 9 2.392 2.410
6 12 20 04.40 -25 07 36.17 5.49 (1.8 ± 0.9) x 10-3 16 2.572 1.963
7 12 20 14.44 -24 59 48.84 3.80 (3 ± 2) x 10-3 274 2.424 1.467
8 12 20 14.47 -24 59 48.54 3.80 (3 ± 3) x 10-3 274 2.386 1.138

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1220.1-2458 Swift-XRT image with known radio, optical and UV sources for 4FGL J1220.1-2458

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J122001.3-250031 12 20 01.30 -25 00 30.96 3.12 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J122014-245949 12 20 14.40 -24 59 48.84 1.60 NVSS
QORG J122014.6-245949 12 20 14.59 -24 59 48.84 1.61 QORGCAT
TGSSADR J122014.6-245949 12 20 14.71 -24 59 48.84 1.62 GMRTAS150M
2 PGC 782957 12 20 15.79 -25 04 23.88 6.10 PGC2003
3 PGC 785550 12 20 04.70 -24 50 27.96 8.06 PGC2003
TGSSADR J121934.5-245714 12 19 34.51 -24 57 14.04 8.43 GMRTAS150M
4 NVSS J121934-245711 12 19 34.51 -24 57 11.88 8.45 NVSS
GLEAM J121934-245716 12 19 34.20 -24 57 15.84 8.49 GLEAMEGCAT
5 WISH B1216.9-2441 12 19 33.70 -24 57 52.92 8.55 WISH
6 PMN J1219-2457 12 19 29.59 -24 57 28.08 9.51 PMN
7 NVSS J122004-244732 12 20 04.39 -24 47 31.92 10.95 NVSS
8 PGC 781974 12 20 02.90 -25 09 54.00 11.68 PGC2003
9 PGC 785658 12 20 46.51 -24 49 46.92 11.72 PGC2003
10 NVSS J122020-244647 12 20 20.81 -24 46 48.00 11.78 NVSS
GLEAM J121940-250758 12 19 40.80 -25 07 59.16 11.83 GLEAMEGCAT
11 NVSS J121940-250801 12 19 40.39 -25 08 02.04 11.93 NVSS
12 NVSS J122056-245213 12 20 56.40 -24 52 14.16 11.93 NVSS
WISH B1218.4-2446 12 21 00.70 -25 02 52.08 12.05 WISH
GLEAM J122100-250259 12 21 00.70 -25 03 00.00 12.10 GLEAMEGCAT
WISH B1218.4-2446 12 21 00.50 -25 03 11.16 12.13 WISH
13 NVSS J122100-250306 12 21 00.79 -25 03 06.12 12.17 NVSS
TGSSADR J122100.8-250308 12 21 00.91 -25 03 07.92 12.18 GMRTAS150M
GLEAM J122024-244627 12 20 24.19 -24 46 27.12 12.28 GLEAMEGCAT
14 NVSS J122025-244623 12 20 25.10 -24 46 23.88 12.38 NVSS
15 PGC 782210 12 19 38.40 -25 08 35.16 12.64 PGC2003
16 PGC 786173 12 19 36.60 -24 46 53.04 13.94 PGC2003
GLEAM J122058-250836 12 20 58.70 -25 08 35.88 14.82 GLEAMEGCAT
TGSSADR J122058.1-244750 12 20 58.20 -24 47 49.92 14.96 GMRTAS150M
17 NVSS J122058-244747 12 20 58.20 -24 47 47.04 15.01 NVSS
QORG J122100.2-244755 12 21 00.19 -24 47 54.96 15.24 QORGCAT
18 NVSS J122060-250855 12 21 00.00 -25 08 56.04 15.25 NVSS
VLSSr J122101.5-244812 12 21 01.61 -24 48 11.88 15.28 VLSSR
GLEAM J122101-244801 12 21 01.90 -24 48 02.16 15.45 GLEAMEGCAT
WISH B1218.4-2431 12 21 01.99 -24 47 57.84 15.50 WISH
TGSSADR J122103.2-244812 12 21 03.31 -24 48 12.96 15.56 GMRTAS150M
19 NVSS J122103-244810 12 21 03.31 -24 48 10.08 15.59 NVSS
TXS 1218-245 12 21 03.91 -24 48 02.16 15.79 TEXAS

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