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 J1220.5-2745

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1220.5-2745 Swift-XRT detections in the field for 4FGL J1220.5-2745


No detected excesses found.

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 17.19 -27 45 14.48 6.65 (3.2 ± 1.1) x 10-3 13 2.989 2.835
2 12 20 32.99 -27 35 58.52 6.41 (2.3 ± 1.0) x 10-3 10 2.426 2.358
3 12 20 22.50 -27 53 04.79 6.31 (2.3 ± 1.0) x 10-3 11 2.561 2.226

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1220.5-2745 Swift-XRT image with known radio, optical and UV sources for 4FGL J1220.5-2745


No known X-ray or gamma ray sources found.

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 SAO 180701 12 20 36.38 -27 48 50.76 2.93 SAO
CD-27 8627 12 20 36.29 -27 48 52.56 2.96 ACRS
PPM 260190 12 20 36.29 -27 48 52.56 2.96 PPM
2 PGC 749895 12 20 04.30 -27 47 11.04 6.89 PGC2003
PMN J1220-2752 12 20 22.51 -27 52 42.96 7.32 PMN
VLSSr J122022.8-275258 12 20 22.90 -27 52 59.16 7.54 VLSSR
GLEAM J122022-275259 12 20 22.20 -27 52 59.88 7.60 GLEAMEGCAT
TGSSADR J122022.6-275304 12 20 22.70 -27 53 03.84 7.64 GMRTAS150M
3 NVSS J122022-275304 12 20 22.61 -27 53 03.84 7.64 NVSS
TXS 1217-276 12 20 22.51 -27 53 04.92 7.66 TEXAS
PGC 2827095 12 20 21.10 -27 53 00.96 7.72 PGC2003
1217-276 12 20 21.00 -27 53 00.96 7.72 MRC
4 NVSS J122005-275024 12 20 05.90 -27 50 24.00 7.83 NVSS
SPASS J122021-275325 12 20 21.41 -27 53 25.08 8.06 SPASS2P3GH
QORG J122110.0-274321 12 21 10.01 -27 43 21.00 8.18 QORGCAT
5 NVSS J122110-274322 12 21 10.20 -27 43 22.08 8.21 NVSS
QORG J122024.7-273746 12 20 24.70 -27 37 45.84 8.47 QORGCAT
6 NVSS J122024-273744 12 20 24.91 -27 37 45.12 8.48 NVSS
PGC 752148 12 20 24.60 -27 37 45.84 8.48 PGC2003
GLEAM J122025-273731 12 20 25.01 -27 37 32.16 8.68 GLEAMEGCAT
7 NVSS J122000-274140 12 20 00.70 -27 41 39.84 8.68 NVSS
PMN J1220-2736 12 20 33.31 -27 36 09.00 9.79 PMN
AT20G J122033-273601 12 20 33.19 -27 36 01.08 9.92 AT20G
QORG J122033.2-273601 12 20 33.19 -27 36 01.08 9.92 QORGCAT
TGSSADR J122033.2-273600 12 20 33.31 -27 36 01.08 9.93 GMRTAS150M
8 NVSS J122033-273600 12 20 33.19 -27 36 01.08 9.93 NVSS
CRATES J122033-273609 12 20 33.19 -27 36 01.08 9.93 CRATES
9 PGC 748955 12 19 56.90 -27 51 14.04 9.94 PGC2003
10 PGC 752503 12 20 54.79 -27 36 18.00 10.59 PGC2003
11 B1S1218-27 12 21 23.81 -27 43 39.00 11.06 DIXON
12 NVSS J122119-275135 12 21 19.70 -27 51 34.92 11.40 NVSS
GLEAM J122120-275121 12 21 20.40 -27 51 21.96 11.44 GLEAMEGCAT
TGSSADR J122120.0-275133 12 21 19.99 -27 51 33.84 11.46 GMRTAS150M
13 PGC 752733 12 20 05.90 -27 35 20.04 12.39 PGC2003
14 NVSS J122117-273729 12 21 17.11 -27 37 28.92 12.58 NVSS
TGSSADR J122116.8-273723 12 21 16.80 -27 37 23.16 12.61 GMRTAS150M
15 MSH 12-203 12 21 06.79 -27 56 39.12 12.82 DIXON
16 PGC 748783 12 19 41.21 -27 51 59.04 13.33 PGC2003
17 NVSS J122110-275731 12 21 10.90 -27 57 30.96 14.06 NVSS
GLEAM J122116-273418 12 21 16.30 -27 34 18.84 14.80 GLEAMEGCAT
TGSSADR J122116.6-273422 12 21 16.70 -27 34 22.08 14.80 GMRTAS150M
18 PKS J1221-2735 12 21 22.61 -27 35 33.00 14.80 PKSCAT90
19 NVSS J122116-273421 12 21 16.70 -27 34 22.08 14.81 NVSS
20 SPASS J122123-273405 12 21 23.81 -27 34 05.16 16.04 SPASS2P3GH
21 TXS 1218-272 12 21 28.90 -27 34 32.16 16.51 TEXAS
TGSSADR J122129.1-273357 12 21 29.11 -27 33 57.96 16.95 GMRTAS150M
22 NVSS J122129-273355 12 21 29.11 -27 33 56.16 16.97 NVSS

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