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 J1653.6-0158

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J1653.6-0158 Swift-XRT detections in the field for 3FGL J1653.6-0158

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 16 53 15.64 -01 58 22.22 3.65 (3.6 ± 0.2) x 10-2 553 21.110 22.180
2 16 53 58.82 -02 03 17.59 4.08 (6.4 ± 0.7) x 10-3 111 8.934 8.763
3 16 53 57.79 -01 49 59.06 4.28 (4.2 ± 0.7) x 10-3 63 6.581 6.378
4 16 53 33.66 -01 52 59.88 4.19 (4.0 ± 0.6) x 10-3 68 6.316 6.219
5 16 53 36.44 -01 49 17.01 4.38 (3.6 ± 0.6) x 10-3 51 6.055 5.931
6 16 53 38.15 -01 58 37.08 4.28 (3.1 ± 0.6) x 10-3 77 5.639 5.519
7 16 53 47.99 -01 54 00.78 4.37 (2.7 ± 0.6) x 10-3 54 4.844 4.833
8 16 52 53.50 -01 54 12.25 4.43 (2.1 ± 0.5) x 10-3 44 4.744 4.520
9 16 53 23.22 -02 04 59.21 4.64 (1.5 ± 0.4) x 10-3 30 3.707 3.591
10 16 54 09.63 -02 02 20.91 4.72 (1.3 ± 0.4) x 10-3 31 3.584 3.492

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 16 53 47.63 -01 50 51.77 4.74 (9 ± 3) x 10-4 37 3.061 2.945

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J1653.6-0158 Swift-XRT image with known radio, optical and UV sources for 3FGL J1653.6-0158

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 CXOGSG J165338.0-015836 16 53 38.50 -01 58 36.84 0.66 CHANDRA
X165338.05-015836.7 16 53 38.50 -01 58 36.84 0.66 CHANDRA
2 CXOGSG J165341.4-015926 16 53 41.40 -01 59 26.88 0.68 CHANDRA
X165341.40-015927.1 16 53 41.40 -01 59 27.24 0.68 CHANDRA
SWIFT J165337.8-015835 16 53 37.85 -01 58 35.04 0.71 SWIFT
3 CXOGSG J165343.5-015841 16 53 43.49 -01 58 41.16 0.74 CHANDRA
4 CXOGSG J165334.8-015803 16 53 34.87 -01 58 03.36 1.61 CHANDRA
5 CXOGSG J165337.2-020020 16 53 37.25 -02 00 20.52 1.74 CHANDRA
X165337.26-020020.4 16 53 37.25 -02 00 20.52 1.74 CHANDRA
6 X165349.43-015818.3 16 53 49.44 -01 58 18.48 2.27 CHANDRA
CXOGSG J165349.4-015818 16 53 49.44 -01 58 18.48 2.27 CHANDRA
7 X165346.71-020109.5 16 53 46.70 -02 01 09.48 2.81 CHANDRA
CXOGSG J165346.7-020109 16 53 46.73 -02 01 09.48 2.81 CHANDRA
8 CXOGSG J165352.0-015846 16 53 52.01 -01 58 46.92 2.86 CHANDRA
9 CXOGSG J165342.8-020145 16 53 42.84 -02 01 45.12 3.00 CHANDRA
CXOGSG J165346.0-020133 16 53 46.49 -02 01 33.24 3.07 CHANDRA
X165346.05-020133.3 16 53 46.49 -02 01 33.24 3.07 CHANDRA
10 CXOGSG J165328.4-020009 16 53 28.44 -02 00 09.36 3.32 CHANDRA
X165328.42-020009.2 16 53 28.42 -02 00 09.36 3.32 CHANDRA
11 CXOGSG J165337.0-020211 16 53 37.30 -02 02 11.40 3.49 CHANDRA
12 CXOGSG J165334.6-020230 16 53 34.63 -02 02 30.48 3.99 CHANDRA
X165334.62-020230.6 16 53 34.63 -02 02 30.48 3.99 CHANDRA
13 CXOGSG J165324.6-015931 16 53 24.67 -01 59 31.56 4.03 CHANDRA
14 CXOGSG J165353.7-015557 16 53 53.78 -01 55 57.36 4.36 CHANDRA
15 CXOGSG J165357.6-015740 16 53 57.65 -01 57 40.68 4.42 CHANDRA
X165357.66-015740.6 16 53 57.65 -01 57 40.68 4.42 CHANDRA
16 CXOGSG J165350.4-015508 16 53 50.45 -01 55 08.40 4.42 CHANDRA
X165350.46-015508.5 16 53 50.47 -01 55 08.40 4.42 CHANDRA
17 CXOGSG J165347.0-015404 16 53 47.11 -01 54 04.32 5.00 CHANDRA
X165347.03-015404.1 16 53 47.30 -01 54 03.96 5.01 CHANDRA
18 X165333.64-015401.7 16 53 33.65 -01 54 01.80 5.08 CHANDRA
X165348.03-015400.0 16 53 48.31 -01 53 60.00 5.15 CHANDRA
CXOGSG J165348.0-015360 16 53 48.19 -01 53 60.00 5.15 CHANDRA
19 X165402.03-015854.1 16 54 02.30 -01 58 54.12 5.36 CHANDRA
CXOGSG J165402.0-015854 16 54 02.50 -01 58 54.48 5.37 CHANDRA
20 CXOGSG J165401.2-020047 16 54 01.20 -02 00 47.88 5.53 CHANDRA
X165401.22-020048.1 16 54 01.22 -02 00 48.24 5.54 CHANDRA
21 CXOGSG J165356.0-020251 16 53 56.30 -02 02 51.00 5.60 CHANDRA
X165356.09-020251.5 16 53 56.90 -02 02 51.36 5.61 CHANDRA
22 X165337.14-020441.0 16 53 37.15 -02 04 41.16 5.94 CHANDRA
23 CXOGSG J165333.5-015259 16 53 33.55 -01 52 59.88 6.07 CHANDRA
X165333.54-015259.7 16 53 33.55 -01 52 59.88 6.07 CHANDRA
24 CXOGSG J165343.0-015238 16 53 43.30 -01 52 39.00 6.19 CHANDRA
X165343.02-015238.5 16 53 43.20 -01 52 38.64 6.19 CHANDRA
25 CXOGSG J165315.6-015822 16 53 15.62 -01 58 22.08 6.25 CHANDRA
X165315.61-015822.2 16 53 15.60 -01 58 22.08 6.25 CHANDRA
26 CXOGSG J165405.5-015906 16 54 05.57 -01 59 06.00 6.26 CHANDRA
SWIFT J165315.5-015823 16 53 15.58 -01 58 23.52 6.26 SWIFT
X165405.60-015905.6 16 54 05.59 -01 59 05.64 6.26 CHANDRA
XMMSL2 J165315.3-015815 16 53 15.46 -01 58 14.88 6.30 XMM-NEWTON
XMMSL2 J165315.3-015815 16 53 15.46 -01 58 14.88 6.30 XMM-NEWTON
SWIFT J165358.7-020315 16 53 58.70 -02 03 15.48 6.35 SWIFT
27 X165359.02-020316.0 16 53 59.21 -02 03 15.84 6.42 CHANDRA
CXOGSG J165359.0-020316 16 53 59.21 -02 03 16.20 6.42 CHANDRA
28 1RXS J165312.9-015819 16 53 12.91 -01 58 19.56 6.93 ROSAT
2RXS J165312.8-015817 16 53 12.82 -01 58 17.04 6.95 ROSAT
2RXS J165312.8-015817 16 53 12.82 -01 58 17.04 6.95 ROSAT
29 X165323.29-020450.0 16 53 23.28 -02 04 50.16 7.41 CHANDRA
CXOGSG J165323.2-020450 16 53 23.26 -02 04 50.52 7.42 CHANDRA
30 X165357.51-015239.5 16 53 57.50 -01 52 39.36 7.47 CHANDRA
CXOGSG J165357.5-015239 16 53 57.50 -01 52 39.36 7.47 CHANDRA
31 CXOGSG J165310.5-015924 16 53 10.51 -01 59 24.36 7.53 CHANDRA
X165310.38-015925.4 16 53 10.39 -01 59 25.44 7.57 CHANDRA
CXOGSG J165309.7-015913 16 53 09.79 -01 59 13.92 7.70 CHANDRA
X165309.68-015914.7 16 53 09.67 -01 59 14.64 7.73 CHANDRA
32 X165315.13-020315.2 16 53 15.12 -02 03 15.12 7.76 CHANDRA
33 X165404.53-020346.7 16 54 04.54 -02 03 46.80 7.78 CHANDRA
CXOGSG J165404.5-020347 16 54 04.51 -02 03 47.16 7.79 CHANDRA
34 X165347.00-015053.7 16 53 46.99 -01 50 53.88 8.07 CHANDRA
CXOGSG J165347.0-015053 16 53 47.30 -01 50 53.88 8.07 CHANDRA
35 CXOGSG J165409.8-020219 16 54 09.82 -02 02 19.32 8.11 CHANDRA
X165409.85-020219.6 16 54 09.84 -02 02 19.68 8.12 CHANDRA
36 X165307.95-015956.5 16 53 07.94 -01 59 56.40 8.23 CHANDRA
37 CXOGSG J165412.7-015701 16 54 12.72 -01 57 01.08 8.23 CHANDRA
X165412.73-015700.9 16 54 12.72 -01 57 01.08 8.23 CHANDRA
CXOGSG J165307.8-015957 16 53 07.80 -01 59 57.48 8.27 CHANDRA
38 CXOGSG J165411.9-015608 16 54 11.98 -01 56 08.52 8.29 CHANDRA
X165412.02-015609.0 16 54 12.19 -01 56 08.88 8.30 CHANDRA
39 X165322.58-015144.9 16 53 22.58 -01 51 45.00 8.37 CHANDRA
40 CXOGSG J165309.0-020137 16 53 09.10 -02 01 37.92 8.37 CHANDRA
X165308.96-020137.2 16 53 08.95 -02 01 37.20 8.38 CHANDRA
41 CXOGSG J165325.9-015107 16 53 25.94 -01 51 07.56 8.50 CHANDRA
X165325.97-015106.2 16 53 25.97 -01 51 06.12 8.52 CHANDRA
42 X165409.88-015421.6 16 54 09.89 -01 54 21.60 8.57 CHANDRA
43 X165311.34-020319.8 16 53 11.35 -02 03 19.80 8.59 CHANDRA
44 CXOGSG J165339.1-015006 16 53 39.10 -01 50 06.36 8.71 CHANDRA
45 X165414.75-015443.0 16 54 14.76 -01 54 42.84 9.47 CHANDRA
CXOGSG J165414.7-015442 16 54 14.78 -01 54 42.84 9.48 CHANDRA
46 CXOGSG J165406.8-020539 16 54 06.84 -02 05 39.12 9.49 CHANDRA
X165406.88-020539.6 16 54 06.89 -02 05 39.48 9.50 CHANDRA
SWIFT J165336.5-014919 16 53 36.58 -01 49 19.56 9.53 SWIFT
47 X165336.35-014919.3 16 53 36.36 -01 49 19.20 9.54 CHANDRA
CXOGSG J165336.3-014919 16 53 36.31 -01 49 19.20 9.55 CHANDRA
48 X165325.63-014911.8 16 53 25.63 -01 49 11.64 10.31 CHANDRA
49 X165253.28-015415.2 16 52 53.28 -01 54 15.12 12.66 CHANDRA

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J165348-015958 16 53 48.41 -01 59 58.92 2.29 NVSS
2 NVSS J165315-020608 16 53 15.91 -02 06 09.00 9.59 NVSS
GLEAM J165356-014954 16 53 56.11 -01 49 54.12 9.71 GLEAMEGCAT
TGSSADR J165357.6-015002 16 53 57.70 -01 50 03.12 9.75 GMRTAS150M
3 NVSS J165357-015000 16 53 57.79 -01 50 00.96 9.80 NVSS
CRATES J165359-014955 16 53 57.79 -01 49 59.16 9.81 CRATES
PMN J1653-0149 16 53 59.21 -01 49 54.84 10.04 PMN
4 TXS 1651-018 16 54 18.50 -01 55 17.04 10.11 TEXAS
GLEAM J165419-015544 16 54 19.80 -01 55 44.04 10.28 GLEAMEGCAT
TGSSADR J165420.2-015546 16 54 20.30 -01 55 45.84 10.38 GMRTAS150M
5 NVSS J165420-015546 16 54 20.30 -01 55 45.84 10.39 NVSS
6 NVSS J165254-020023 16 52 54.79 -02 00 23.04 11.55 NVSS
TGSSADR J165410.3-014852 16 54 10.39 -01 48 52.92 12.41 GMRTAS150M
7 NVSS J165410-014851 16 54 10.30 -01 48 51.84 12.42 NVSS
8 NVSS J165305-014842 16 53 05.69 -01 48 42.12 13.33 NVSS
9 NVSS J165416-021038 16 54 16.90 -02 10 37.92 14.91 NVSS

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