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 J1226.8-4907

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1226.8-4907 Swift-XRT detections in the field for 4FGL J1226.8-4907

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 12 27 34.44 -49 12 05.34 4.57 (1.6 ± 0.2) x 10-2 58 6.784 6.720
2 12 27 25.56 -48 55 57.94 9.05 (7 ± 2) x 10-3 8 2.627 3.873
3 12 26 46.79 -48 54 49.44 6.65 (6 ± 2) x 10-3 15 3.622 3.580
4 12 27 39.38 -49 15 04.37 4.44 (6 ± 2) x 10-3 37 4.599 3.415
5 12 26 40.10 -49 16 59.92 4.34 (6 ± 2) x 10-3 43 4.347 3.144

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 27 27.03 -49 16 02.42 4.37 (4 ± 2) x 10-3 48 3.431 2.777
2 12 26 32.72 -49 16 10.15 4.48 (4 ± 2) x 10-3 35 3.577 2.674
3 12 26 47.51 -49 16 52.68 4.27 (4 ± 2) x 10-3 46 4.485 2.526
4 12 26 47.51 -49 16 52.69 4.27 (5 ± 2) x 10-3 46 3.523 2.515
5 12 26 59.18 -49 17 19.73 4.24 (4 ± 2) x 10-3 55 3.660 2.394
6 12 27 07.62 -49 17 12.82 4.16 (4 ± 2) x 10-3 57 4.163 2.350
7 12 27 15.64 -49 16 44.81 4.26 (4 ± 2) x 10-3 51 4.410 2.336
8 12 26 22.62 -49 16 20.59 5.17 (2.8 ± 1.2) x 10-3 19 2.462 2.334
9 12 27 47.37 -49 12 51.30 5.31 (2.5 ± 1.1) x 10-3 20 2.402 2.266
10 12 27 07.48 -49 17 13.06 4.16 (5 ± 2) x 10-3 58 3.547 2.214
11 12 27 27.03 -49 16 02.49 4.37 (3 ± 2) x 10-3 49 3.739 2.200
12 12 27 39.03 -49 15 08.82 4.43 (3 ± 2) x 10-3 41 3.185 2.034
13 12 27 27.04 -49 16 02.36 4.37 (2.6 ± 1.3) x 10-3 48 3.739 1.973
14 12 26 58.64 -49 17 19.92 4.26 (2.4 ± 1.4) x 10-3 53 3.784 1.761
15 12 27 15.64 -49 16 44.81 4.26 (2.4 ± 1.4) x 10-3 51 3.558 1.750
16 12 27 15.64 -49 16 44.81 4.26 (3 ± 2) x 10-3 52 2.791 1.726
17 12 27 07.93 -49 17 11.43 4.15 (3 ± 2) x 10-3 63 2.931 1.701
18 12 27 42.10 -49 14 19.66 4.51 (2.0 ± 1.3) x 10-3 23 2.779 1.595
19 12 26 32.72 -49 16 10.15 4.48 (2 ± 2) x 10-3 35 2.890 1.418
20 12 27 09.04 -49 17 10.39 4.15 (2 ± 2) x 10-3 59 4.193 0.986
21 12 27 02.42 -49 17 20.94 4.16 (1.3 ± 1.4) x 10-3 52 3.805 0.917

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1226.8-4907 Swift-XRT image with known radio, optical and UV sources for 4FGL J1226.8-4907

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 4XMM J122654.6-490345 12 26 54.65 -49 03 45.00 3.85 XMM-NEWTON
2 4XMM J122649.4-490157 12 26 49.51 -49 01 59.52 5.63 XMM-NEWTON
4XMMs J122649.4-490157 12 26 49.42 -49 01 57.36 5.67 XMM-NEWTON
4XMM J122649.4-490157 12 26 49.56 -49 01 56.64 5.67 XMM-NEWTON
3 4XMMs J122725.7-490540 12 27 25.73 -49 05 40.56 5.67 XMM-NEWTON
4XMM J122649.4-490157 12 26 49.37 -49 01 56.64 5.68 XMM-NEWTON
4 4XMM J122656.3-490133 12 26 56.38 -49 01 33.24 6.06 XMM-NEWTON
5 4XMMs J122700.8-490112 12 27 00.84 -49 01 13.08 6.50 XMM-NEWTON
4XMM J122700.8-490110 12 27 00.77 -49 01 12.36 6.51 XMM-NEWTON
4XMM J122700.8-490110 12 27 01.06 -49 01 10.20 6.55 XMM-NEWTON
4XMM J122700.8-490110 12 27 00.43 -49 01 08.40 6.56 XMM-NEWTON
6 4XMM J122723.5-490303 12 27 23.54 -49 03 03.24 6.74 XMM-NEWTON
7 4XMM J122733.6-490431 12 27 33.05 -49 04 25.68 7.27 XMM-NEWTON
8 XSS J12270-4859 12 26 59.40 -49 00 21.60 7.31 RXTE
4XMM J122733.6-490431 12 27 33.96 -49 04 35.04 7.33 XMM-NEWTON
9 4XMM J122650.9-490009 12 26 51.02 -49 00 10.08 7.43 XMM-NEWTON
4XMM J122650.9-490009 12 26 50.88 -49 00 10.08 7.43 XMM-NEWTON
4XMMs J122650.9-490009 12 26 50.93 -49 00 09.36 7.44 XMM-NEWTON
4XMM J122650.9-490009 12 26 50.83 -49 00 09.36 7.44 XMM-NEWTON
10 4XMMs J122738.2-490634 12 27 38.21 -49 06 34.56 7.45 XMM-NEWTON
4XMM J122650.9-490009 12 26 51.10 -49 00 07.92 7.47 XMM-NEWTON
11 4XMM J122736.7-490426 12 27 36.62 -49 04 26.04 7.79 XMM-NEWTON
4XMMs J122736.6-490426 12 27 36.67 -49 04 26.76 7.80 XMM-NEWTON
4XMM J122736.7-490426 12 27 36.79 -49 04 28.92 7.80 XMM-NEWTON
4XMM J122736.7-490426 12 27 36.67 -49 04 25.32 7.81 XMM-NEWTON
4XMM J122736.7-490426 12 27 36.77 -49 04 26.04 7.81 XMM-NEWTON
12 4XMMs J122708.6-485946 12 27 08.64 -48 59 46.68 8.22 XMM-NEWTON
4XMM J122708.7-485945 12 27 08.57 -48 59 46.32 8.22 XMM-NEWTON
4XMM J122708.7-485945 12 27 08.50 -48 59 44.88 8.24 XMM-NEWTON
4XMM J122708.7-485945 12 27 09.53 -48 59 43.44 8.32 XMM-NEWTON
4XMM J122719.0-490021 12 27 19.08 -49 00 22.68 8.38 XMM-NEWTON
4XMM J122719.0-490021 12 27 19.34 -49 00 23.40 8.39 XMM-NEWTON
4XMMs J122719.0-490021 12 27 19.06 -49 00 21.60 8.39 XMM-NEWTON
13 2CXO J122719.1-490022 12 27 19.15 -49 00 22.32 8.39 CHANDRA
4XMM J122719.0-490021 12 27 18.94 -49 00 20.88 8.39 XMM-NEWTON
4XMM J122719.0-490021 12 27 19.06 -49 00 20.52 8.40 XMM-NEWTON
14 4XMM J122636.8-485916 12 26 36.96 -48 59 18.24 8.70 XMM-NEWTON
4XMMs J122636.8-485917 12 26 36.89 -48 59 17.88 8.71 XMM-NEWTON
4XMM J122636.8-485916 12 26 36.62 -48 59 12.84 8.80 XMM-NEWTON
4XMM J122746.2-490525 12 27 46.03 -49 05 25.44 8.93 XMM-NEWTON
4XMM J122746.2-490525 12 27 46.13 -49 05 27.24 8.94 XMM-NEWTON
4XMMs J122746.2-490526 12 27 46.20 -49 05 26.52 8.96 XMM-NEWTON
15 2CXO J122746.2-490526 12 27 46.27 -49 05 26.16 8.97 CHANDRA
4XMM J122746.2-490525 12 27 46.30 -49 05 25.44 8.97 XMM-NEWTON
4XMM J122746.2-490525 12 27 46.32 -49 05 25.80 8.97 XMM-NEWTON
16 4XMM J122728.8-490038 12 27 28.82 -49 00 38.88 9.08 XMM-NEWTON
4XMMs J122729.2-490039 12 27 29.26 -49 00 39.60 9.12 XMM-NEWTON
4XMM J122732.5-490025 12 27 32.52 -49 00 26.64 9.63 XMM-NEWTON
17 2CXO J122732.8-490027 12 27 32.86 -49 00 27.72 9.66 CHANDRA
4XMMs J122732.6-490025 12 27 32.66 -49 00 25.92 9.66 XMM-NEWTON
4XMM J122732.5-490025 12 27 32.59 -49 00 24.84 9.66 XMM-NEWTON
18 4XMM J122717.8-485847 12 27 17.88 -48 58 48.00 9.69 XMM-NEWTON
4XMMs J122717.7-485847 12 27 17.76 -48 58 47.28 9.69 XMM-NEWTON
19 4XMM J122702.4-485740 12 27 02.38 -48 57 42.84 9.99 XMM-NEWTON
4XMM J122702.4-485740 12 27 02.52 -48 57 42.48 10.00 XMM-NEWTON
4XMMs J122702.3-485740 12 27 02.38 -48 57 41.04 10.02 XMM-NEWTON
4XMM J122702.4-485740 12 27 02.33 -48 57 40.68 10.03 XMM-NEWTON
4XMM J122702.4-485740 12 27 02.40 -48 57 39.60 10.05 XMM-NEWTON
20 4XMM J122708.2-485748 12 27 08.11 -48 57 50.40 10.05 XMM-NEWTON
4XMMs J122708.1-485748 12 27 08.11 -48 57 48.60 10.09 XMM-NEWTON
4XMM J122708.2-485748 12 27 08.28 -48 57 46.80 10.12 XMM-NEWTON
4XMM J122737.6-490011 12 27 37.44 -49 00 10.80 10.37 XMM-NEWTON
4XMMs J122737.6-490012 12 27 37.66 -49 00 12.24 10.38 XMM-NEWTON
4XMM J122737.6-490011 12 27 37.66 -49 00 12.24 10.39 XMM-NEWTON
4XMM J122737.6-490011 12 27 37.70 -49 00 12.60 10.39 XMM-NEWTON
21 2CXO J122737.6-490011 12 27 37.63 -49 00 11.16 10.40 CHANDRA
4XMM J122737.6-490011 12 27 37.85 -49 00 11.88 10.41 XMM-NEWTON
4XMM J122707.0-485723 12 27 06.94 -48 57 23.40 10.45 XMM-NEWTON
4XMMs J122706.9-485723 12 27 06.94 -48 57 23.04 10.45 XMM-NEWTON
4XMM J122707.0-485723 12 27 07.08 -48 57 23.40 10.46 XMM-NEWTON
4XMM J122707.0-485723 12 27 07.03 -48 57 22.68 10.46 XMM-NEWTON
22 4XMM J122757.4-490749 12 27 57.46 -49 07 49.80 10.53 XMM-NEWTON
4XMMs J122757.5-490751 12 27 57.50 -49 07 51.24 10.54 XMM-NEWTON
4XMM J122738.2-485948 12 27 37.85 -48 59 46.68 10.72 XMM-NEWTON
4XMMs J122738.1-485948 12 27 38.16 -48 59 48.48 10.73 XMM-NEWTON
4XMM J122738.2-485948 12 27 38.33 -48 59 49.20 10.74 XMM-NEWTON
23 4XMMs J122730.1-485843 12 27 30.12 -48 58 43.32 10.75 XMM-NEWTON
4XMM J122738.2-485948 12 27 38.40 -48 59 48.12 10.76 XMM-NEWTON
4XMM J122738.2-485948 12 27 38.52 -48 59 49.20 10.76 XMM-NEWTON
4XMM J122730.1-485842 12 27 30.17 -48 58 42.24 10.77 XMM-NEWTON
24 4XMM J122641.4-485643 12 26 41.50 -48 56 45.96 10.99 XMM-NEWTON
4XMMs J122641.3-485643 12 26 41.38 -48 56 43.80 11.03 XMM-NEWTON
4XMM J122641.4-485643 12 26 41.52 -48 56 42.00 11.05 XMM-NEWTON
4XMM J122641.4-485643 12 26 41.45 -48 56 40.92 11.08 XMM-NEWTON
25 4XMMs J122749.8-490100 12 27 49.85 -49 01 00.48 11.39 XMM-NEWTON
4XMM J122753.0-490137 12 27 52.68 -49 01 37.20 11.44 XMM-NEWTON
4XMMs J122753.1-490137 12 27 53.14 -49 01 37.56 11.50 XMM-NEWTON
4XMM J122753.0-490137 12 27 53.26 -49 01 38.28 11.51 XMM-NEWTON
4XMM J122753.0-490137 12 27 53.14 -49 01 36.48 11.51 XMM-NEWTON
26 2CXO J122753.3-490136 12 27 53.35 -49 01 36.48 11.54 CHANDRA
27 4XMM J122707.9-485608 12 27 07.87 -48 56 09.96 11.68 XMM-NEWTON
4XMMs J122707.9-485608 12 27 07.92 -48 56 08.52 11.70 XMM-NEWTON
4XMM J122707.9-485608 12 27 07.92 -48 56 08.52 11.70 XMM-NEWTON
4XMM J122707.9-485608 12 27 07.90 -48 56 08.16 11.71 XMM-NEWTON
4XMM J122707.9-485608 12 27 07.92 -48 56 07.80 11.72 XMM-NEWTON
28 4XMMs J122718.3-485631 12 27 18.36 -48 56 31.92 11.81 XMM-NEWTON
4XMM J122719.3-485633 12 27 19.34 -48 56 33.72 11.84 XMM-NEWTON
29 4XMM J122732.6-485739 12 27 32.64 -48 57 39.24 11.86 XMM-NEWTON
4XMMs J122732.5-485737 12 27 32.57 -48 57 37.44 11.88 XMM-NEWTON
30 4XMMs J122740.3-485756 12 27 40.37 -48 57 56.52 12.37 XMM-NEWTON
4XMM J122740.1-485754 12 27 40.18 -48 57 54.36 12.38 XMM-NEWTON
31 2CXO J122734.3-485703 12 27 34.39 -48 57 03.24 12.52 CHANDRA
4XMM J122725.1-485557 12 27 25.08 -48 55 58.08 12.75 XMM-NEWTON
32 CXOGSG J122725.2-485558 12 27 25.25 -48 55 58.80 12.75 CHANDRA
4XMMs J122725.1-485557 12 27 25.10 -48 55 57.72 12.76 XMM-NEWTON
4XMM J122725.1-485557 12 27 25.13 -48 55 57.72 12.76 XMM-NEWTON
4XMM J122725.1-485557 12 27 25.13 -48 55 57.36 12.77 XMM-NEWTON
4XMM J122725.1-485557 12 27 25.13 -48 55 57.00 12.77 XMM-NEWTON
33 CXOGSG J122732.9-485613 12 27 32.90 -48 56 13.56 13.10 CHANDRA
4XMMs J122732.6-485611 12 27 32.66 -48 56 11.04 13.12 XMM-NEWTON
2CXO J122732.8-485611 12 27 32.83 -48 56 11.76 13.12 CHANDRA
4XMMs J122741.6-485629 12 27 41.66 -48 56 29.76 13.66 XMM-NEWTON
34 2CXO J122741.7-485629 12 27 41.71 -48 56 29.76 13.66 CHANDRA
4XMM J122750.3-485704 12 27 50.28 -48 57 05.40 14.08 XMM-NEWTON
35 CXOGSG J122750.4-485705 12 27 50.40 -48 57 05.76 14.09 CHANDRA
2CXO J122750.4-485704 12 27 50.40 -48 57 04.68 14.10 CHANDRA
4XMM J122750.3-485704 12 27 50.33 -48 57 03.96 14.10 XMM-NEWTON
4XMMs J122750.3-485703 12 27 50.35 -48 57 03.96 14.10 XMM-NEWTON
4XMM J122750.3-485704 12 27 50.45 -48 57 03.60 14.11 XMM-NEWTON
4XMM J122805.5-485938 12 28 05.50 -48 59 38.76 14.27 XMM-NEWTON
4XMM J122805.5-485938 12 28 05.40 -48 59 37.32 14.28 XMM-NEWTON
4XMMs J122805.5-485938 12 28 05.54 -48 59 38.76 14.28 XMM-NEWTON
36 CXOGSG J122805.6-485939 12 28 05.62 -48 59 39.84 14.28 CHANDRA
2CXO J122805.5-485939 12 28 05.59 -48 59 39.12 14.29 CHANDRA
4XMM J122805.5-485938 12 28 05.57 -48 59 38.76 14.29 XMM-NEWTON
4XMM J122805.5-485938 12 28 05.62 -48 59 38.76 14.29 XMM-NEWTON
4XMM J122800.1-485746 12 28 00.12 -48 57 48.60 14.71 XMM-NEWTON
4XMM J122800.1-485746 12 28 00.07 -48 57 47.16 14.72 XMM-NEWTON
37 2CXO J122800.1-485748 12 28 00.19 -48 57 47.88 14.72 CHANDRA
CXOGSG J122800.2-485748 12 28 00.22 -48 57 48.24 14.73 CHANDRA
4XMM J122800.1-485746 12 28 00.07 -48 57 46.08 14.73 XMM-NEWTON
4XMMs J122800.2-485746 12 28 00.19 -48 57 46.44 14.74 XMM-NEWTON
4XMM J122800.1-485746 12 28 00.34 -48 57 45.00 14.77 XMM-NEWTON
38 CXOGSG J122756.9-485552 12 27 56.95 -48 55 51.96 15.72 CHANDRA
2CXO J122756.9-485551 12 27 56.95 -48 55 51.60 15.72 CHANDRA
4XMM J122758.1-485554 12 27 58.15 -48 55 57.00 15.79 XMM-NEWTON
4XMMs J122758.2-485554 12 27 58.20 -48 55 54.84 15.82 XMM-NEWTON
CXOGSG J122758.3-485555 12 27 58.32 -48 55 55.56 15.83 CHANDRA
4XMM J122758.1-485554 12 27 58.18 -48 55 54.12 15.83 XMM-NEWTON
2CXO J122758.3-485555 12 27 58.32 -48 55 54.84 15.83 CHANDRA
4XMM J122758.1-485554 12 27 58.18 -48 55 53.40 15.84 XMM-NEWTON
39 1RXS J122805.3-485639 12 28 05.30 -48 56 39.12 16.12 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 PGC 479092 12 26 54.19 -49 13 46.92 6.20 PGC2003
2 PPM 758967 12 26 39.26 -49 13 22.80 6.22 PPM
3 PPM 758974 12 27 24.70 -49 03 02.16 6.89 PPM
4 SUMSS J122734-491200 12 27 34.10 -49 12 01.08 8.03 SUMSS
TGSSADR J122734.1-491204 12 27 34.10 -49 12 03.96 8.07 GMRTAS150M
ATPMN J122734.4-491202 12 27 34.49 -49 12 02.88 8.10 ATPMNCAT
GLEAM J122736-491213 12 27 36.41 -49 12 12.96 8.46 GLEAMEGCAT
5 PMN J1227-4912 12 27 37.90 -49 12 12.96 8.66 PMN
SPASS J122737-491215 12 27 37.80 -49 12 15.84 8.67 SPASS2P3GH
QORG J122738.9-491231 12 27 38.90 -49 12 30.96 8.96 QORGCAT
6 SUMSS J122747-490520 12 27 47.59 -49 05 21.12 9.19 SUMSS
7 PPM 758969 12 26 55.56 -49 17 02.40 9.46 PPM
8 PGC 478498 12 26 45.41 -49 17 12.84 9.71 PGC2003
9 SUMSS J122653-485731 12 26 53.50 -48 57 32.04 10.06 SUMSS
TGSSADR J122653.2-485726 12 26 53.21 -48 57 27.00 10.14 GMRTAS150M
10 SUMSS J122745-491314 12 27 45.19 -49 13 14.16 10.22 SUMSS
TGSSADR J122745.1-491315 12 27 45.19 -49 13 14.88 10.23 GMRTAS150M
11 PPM 317457 12 27 56.62 -48 59 38.76 13.09 PPM
HD 108462 12 27 56.62 -48 59 38.76 13.09 HIC
CD-48 7440 12 27 56.59 -48 59 38.40 13.10 ACRS
HIP 60817 12 27 56.62 -48 59 38.40 13.10 HIPPARCOS
SAO 223453 12 27 56.64 -48 59 38.40 13.10 SAO
12 SUMSS J122756-491540 12 27 56.81 -49 15 39.96 13.18 SUMSS
13 SUMSS J122736-491934 12 27 36.79 -49 19 35.04 13.95 SUMSS

Penn State University Goddard Space Flight Center Swift