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 J1806.7-2451

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J1806.7-2451 Swift-XRT detections in the field for 3FGL J1806.7-2451

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 18 06 15.32 -24 50 34.12 6.52 (5 ± 2) x 10-3 15 3.074 3.097

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 18 06 47.04 -24 51 36.35 6.12 (2.4 ± 0.9) x 10-3 17 2.820 2.589
2 18 07 33.81 -24 59 21.71 5.53 (2.3 ± 0.9) x 10-3 14 2.427 2.431
3 18 07 43.38 -24 56 47.93 5.96 (2.0 ± 0.8) x 10-3 9 2.447 2.367
4 18 06 56.84 -24 50 39.21 5.44 (2.0 ± 0.9) x 10-3 22 2.665 2.165
5 18 07 19.16 -24 59 49.04 5.82 (1.4 ± 0.8) x 10-3 13 2.363 1.918

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J1806.7-2451 Swift-XRT image with known radio, optical and UV sources for 3FGL J1806.7-2451

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J180700.7-245619 18 07 00.70 -24 56 18.96 6.37 ROSAT
2RXS J180700.8-245620 18 07 00.84 -24 56 20.40 6.41 ROSAT
2 3XMM J180640.6-244343 18 06 40.63 -24 43 43.68 7.60 XMM-NEWTON
3 3XMM J180620.1-244543 18 06 20.16 -24 45 43.20 7.68 XMM-NEWTON
4 CXOGSG J180708.2-245726 18 07 08.28 -24 57 26.64 8.35 CHANDRA
5 3XMM J180658.6-244311 18 06 58.68 -24 43 11.64 8.83 XMM-NEWTON
6 3XMM J180623.6-244339 18 06 23.69 -24 43 39.36 8.86 XMM-NEWTON
7 CXO J180704.4-245850 18 07 04.49 -24 58 50.16 8.93 CHANDRA
CXOGSG J180704.4-245850 18 07 04.51 -24 58 50.16 8.93 CHANDRA
X180704.50-245850.3 18 07 04.51 -24 58 50.16 8.93 CHANDRA
8 3XMM J180638.3-244213 18 06 38.38 -24 42 13.68 9.15 XMM-NEWTON
CXOGSG J180704.8-245913 18 07 04.87 -24 59 13.92 9.31 CHANDRA
X180704.92-245913.8 18 07 04.92 -24 59 13.92 9.31 CHANDRA
9 3XMM J180645.0-244147 18 06 45.79 -24 41 47.76 9.52 XMM-NEWTON
10 CXO J180722.9-245447 18 07 22.92 -24 54 47.88 9.63 CHANDRA
11 3XMM J180604.5-244722 18 06 04.51 -24 47 21.84 9.65 XMM-NEWTON
12 3XMM J180643.1-244135 18 06 43.15 -24 41 35.52 9.71 XMM-NEWTON
13 3XMM J180657.3-244113 18 06 57.34 -24 41 13.92 10.56 XMM-NEWTON
14 X180718.61-245815.3 18 07 18.60 -24 58 15.24 10.59 CHANDRA
15 CXOGSG J180711.3-245958 18 07 11.38 -24 59 58.56 10.75 CHANDRA
X180711.38-245959.2 18 07 11.38 -24 59 59.28 10.76 CHANDRA
16 3XMM J180640.9-244021 18 06 40.94 -24 40 21.36 10.96 XMM-NEWTON
17 CXOGSG J180720.2-245843 18 07 20.30 -24 58 43.68 11.19 CHANDRA
X180720.31-245843.8 18 07 20.30 -24 58 43.68 11.20 CHANDRA
18 3XMM J180652.0-244008 18 06 52.39 -24 40 08.40 11.34 XMM-NEWTON
19 CXOGSG J180731.5-245434 18 07 31.58 -24 54 34.92 11.42 CHANDRA
CXO J180731.6-245434 18 07 31.61 -24 54 34.56 11.42 CHANDRA
X180731.63-245434.8 18 07 31.63 -24 54 34.92 11.43 CHANDRA
20 CXOGSG J180712.8-250035 18 07 12.89 -25 00 35.28 11.44 CHANDRA
X180712.87-250035.4 18 07 12.86 -25 00 35.28 11.45 CHANDRA
21 CXO J180718.7-245953 18 07 18.77 -24 59 53.88 11.76 CHANDRA
X180718.76-245953.9 18 07 18.77 -24 59 53.88 11.76 CHANDRA
CXOGSG J180718.7-245954 18 07 18.77 -24 59 53.88 11.76 CHANDRA
22 3XMM J180618.9-244050 18 06 18.94 -24 40 50.16 11.84 XMM-NEWTON
CXOGSG J180720.5-245940 18 07 20.52 -24 59 40.56 11.88 CHANDRA
X180720.54-245940.6 18 07 20.54 -24 59 40.56 11.88 CHANDRA
CXOGSG J180720.2-245951 18 07 20.21 -24 59 51.00 11.95 CHANDRA
X180720.22-245950.9 18 07 20.23 -24 59 51.00 11.95 CHANDRA
23 CXOGSG J180714.9-250104 18 07 14.98 -25 01 04.44 12.12 CHANDRA
X180714.97-250104.5 18 07 14.98 -25 01 04.44 12.12 CHANDRA
24 3XMM J180711.5-244057 18 07 11.59 -24 40 57.36 12.17 XMM-NEWTON
25 X180720.72-250011.9 18 07 20.71 -25 00 11.88 12.28 CHANDRA
CXO J180720.7-250011 18 07 20.71 -25 00 11.88 12.28 CHANDRA
CXOGSG J180720.7-250012 18 07 20.71 -25 00 12.24 12.28 CHANDRA
26 3XMM J180728.0-244417 18 07 28.10 -24 44 17.88 12.32 XMM-NEWTON
X180719.08-250036.1 18 07 19.80 -25 00 36.00 12.33 CHANDRA
CXO J180719.0-250036 18 07 19.90 -25 00 36.00 12.33 CHANDRA
CXOGSG J180719.0-250036 18 07 19.80 -25 00 36.36 12.33 CHANDRA
27 CXOGSG J180730.2-245745 18 07 30.24 -24 57 45.36 12.44 CHANDRA
X180730.25-245745.7 18 07 30.24 -24 57 45.72 12.44 CHANDRA
28 X180729.76-245816.7 18 07 29.76 -24 58 16.68 12.62 CHANDRA
29 X180735.17-245624.9 18 07 35.16 -24 56 25.08 12.81 CHANDRA
30 3XMM J180710.9-244003 18 07 10.99 -24 40 03.72 12.88 XMM-NEWTON
31 1WGA J1805.9-2458 18 05 55.01 -24 58 51.96 13.31 ROSAT
32 3XMM J180612.2-243951 18 06 12.22 -24 39 51.12 13.46 XMM-NEWTON
33 CXOGSG J180727.2-250052 18 07 27.24 -25 00 52.56 13.81 CHANDRA
34 3XMM J180732.2-244247 18 07 32.23 -24 42 47.88 13.98 XMM-NEWTON
35 CXO J180733.7-245923 18 07 33.74 -24 59 23.64 14.00 CHANDRA
X180733.77-245924.3 18 07 33.77 -24 59 24.36 14.01 CHANDRA
CXOGSG J180733.7-245924 18 07 33.77 -24 59 24.36 14.01 CHANDRA
CXOGSG J180728.7-250055 18 07 28.75 -25 00 55.80 14.09 CHANDRA
X180728.76-250055.5 18 07 28.75 -25 00 55.44 14.09 CHANDRA
CXO J180728.7-250055 18 07 28.75 -25 00 55.80 14.09 CHANDRA
36 X180730.56-250030.7 18 07 30.55 -25 00 30.60 14.12 CHANDRA
CXO J180730.6-250030 18 07 30.67 -25 00 30.96 14.14 CHANDRA
CXOGSG J180730.6-250030 18 07 30.67 -25 00 30.96 14.14 CHANDRA
37 CXOGSG J180733.9-250219 18 07 33.98 -25 02 19.68 15.91 CHANDRA
X180734.02-250220.3 18 07 34.20 -25 02 20.40 15.93 CHANDRA

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J180636-245111 18 06 36.31 -24 51 11.88 1.61 NVSS
2 NVSS J180655-245051 18 06 55.90 -24 50 51.00 2.89 NVSS
3 NVSS J180704-245235 18 07 04.70 -24 52 35.04 5.01 NVSS
4 NVSS J180654-244653 18 06 54.60 -24 46 54.12 5.10 NVSS
5 NVSS J180710-244952 18 07 10.30 -24 49 51.96 6.29 NVSS
6 NVSS J180659-245628 18 06 59.11 -24 56 29.04 6.29 NVSS
7 NVSS J180617-245459 18 06 17.59 -24 54 59.04 6.90 NVSS
8 NVSS J180625-245856 18 06 25.70 -24 58 57.00 8.62 NVSS
9 NVSS J180703-244357 18 07 03.79 -24 43 57.00 8.69 NVSS
TGSSADR J180625.6-245901 18 06 25.70 -24 59 02.04 8.70 GMRTAS150M
10 NVSS J180605-245307 18 06 05.59 -24 53 08.16 8.76 NVSS
11 NVSS J180713-244446 18 07 13.51 -24 44 45.96 9.46 NVSS
12 NVSS J180709-244345 18 07 09.31 -24 43 45.84 9.57 NVSS
13 NVSS J180719-244501 18 07 19.20 -24 45 01.08 10.28 NVSS
14 TGSSADR J180611.6-244353 18 06 11.71 -24 43 53.04 10.32 GMRTAS150M
15 NVSS J180710-244215 18 07 10.80 -24 42 15.84 10.98 NVSS
16 NVSS J180601-245732 18 06 01.01 -24 57 33.12 11.45 NVSS
17 NVSS J180604-245850 18 06 04.39 -24 58 50.88 11.61 NVSS
18 NVSS J180559-244501 18 05 59.11 -24 45 02.16 11.83 NVSS
19 PSR J1807-2459A 18 07 20.40 -24 59 53.16 12.00 ATNFPULSAR
20 NVSS J180608-244204 18 06 08.81 -24 42 05.04 12.11 NVSS
PSR J1807-2459B 18 07 20.90 -25 00 02.16 12.19 ATNFPULSAR
21 NVSS J180610-250117 18 06 10.51 -25 01 18.12 12.45 NVSS
22 NVSS J180724-244219 18 07 24.41 -24 42 19.08 12.94 NVSS
23 NVSS J180718-243922 18 07 18.79 -24 39 23.04 14.39 NVSS

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