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 J1837.6-0717

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J1837.6-0717 Swift-XRT detections in the field for 3FGL J1837.6-0717


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 18 37 18.28 -07 29 22.21 5.96 (1.2 ± 0.4) x 10-3 11 2.618 2.764
2 18 37 32.28 -07 17 10.99 5.53 (1.2 ± 0.5) x 10-3 27 2.815 2.676
3 18 37 53.81 -07 28 06.07 5.40 (9 ± 4) x 10-4 15 2.734 2.309
4 18 37 19.33 -07 10 12.58 6.31 (7 ± 3) x 10-4 10 2.389 2.159

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J1837.6-0717 Swift-XRT image with known radio, optical and UV sources for 3FGL J1837.6-0717

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 3XMM J183735.2-071728 18 37 35.26 -07 17 28.32 0.47 XMM-NEWTON
3XMM J183736.8-071711 18 37 36.91 -07 17 11.76 0.62 XMM-NEWTON
2 3XMM J183734.6-071838 18 37 34.66 -07 18 38.16 0.96 XMM-NEWTON
3 3XMM J183740.4-071706 18 37 40.44 -07 17 06.00 1.19 XMM-NEWTON
4 3XMM J183731.9-071716 18 37 31.92 -07 17 16.44 1.28 XMM-NEWTON
5 3XMM J183730.2-071737 18 37 30.19 -07 17 37.68 1.60 XMM-NEWTON
6 3XMM J183738.8-071531 18 37 38.88 -07 15 32.04 2.34 XMM-NEWTON
7 3XMM J183733.8-071511 18 37 33.86 -07 15 11.52 2.70 XMM-NEWTON
8 3XMM J183742.6-072012 18 37 42.65 -07 20 12.12 2.82 XMM-NEWTON
9 3XMM J183738.0-072101 18 37 37.99 -07 21 01.44 3.24 XMM-NEWTON
10 3XMM J183748.6-071929 18 37 48.60 -07 19 29.28 3.42 XMM-NEWTON
11 3XMM J183737.3-072131 18 37 37.39 -07 21 31.32 3.72 XMM-NEWTON
12 3XMM J183727.8-071428 18 37 27.89 -07 14 27.96 3.98 XMM-NEWTON
13 3XMM J183718.7-071640 18 37 18.70 -07 16 40.44 4.58 XMM-NEWTON
14 3XMM J183723.2-071417 18 37 23.28 -07 14 17.88 4.82 XMM-NEWTON
15 3XMM J183717.8-071557 18 37 17.81 -07 15 56.88 5.02 XMM-NEWTON
16 3XMM J183723.3-072144 18 37 23.30 -07 21 45.00 5.14 XMM-NEWTON
17 3XMM J183740.4-072336 18 37 40.44 -07 23 36.60 5.88 XMM-NEWTON
18 3XMM J183758.1-071508 18 37 58.13 -07 15 08.28 5.97 XMM-NEWTON
19 3XMM J183720.8-071233 18 37 20.88 -07 12 33.84 6.54 XMM-NEWTON
20 3XMM J183712.5-072034 18 37 12.53 -07 20 35.16 6.58 XMM-NEWTON
21 3XMM J183720.6-072304 18 37 20.64 -07 23 04.92 6.59 XMM-NEWTON
22 3XMM J183748.9-071133 18 37 48.96 -07 11 33.72 6.96 XMM-NEWTON
23 3XMM J183715.5-071259 18 37 15.55 -07 12 59.40 7.10 XMM-NEWTON
24 3XMM J183715.6-071121 18 37 15.70 -07 11 21.12 8.28 XMM-NEWTON
25 3XMM J183700.7-071532 18 37 00.77 -07 15 32.40 9.17 XMM-NEWTON
26 3XMM J183745.4-072647 18 37 45.43 -07 26 47.76 9.25 XMM-NEWTON
27 3XMM J183700.0-072000 18 37 00.79 -07 19 59.88 9.32 XMM-NEWTON
28 3XMM J183728.4-070841 18 37 28.44 -07 08 41.64 9.34 XMM-NEWTON
29 3XMM J183814.8-071704 18 38 14.83 -07 17 04.92 9.51 XMM-NEWTON
30 3XMM J183702.4-071311 18 37 02.50 -07 13 11.64 9.63 XMM-NEWTON
31 3XMM J183709.3-071052 18 37 09.31 -07 10 52.32 9.69 XMM-NEWTON
32 3XMM J183700.4-072134 18 37 00.43 -07 21 34.56 9.73 XMM-NEWTON
33 3XMM J183734.3-072752 18 37 34.32 -07 27 52.92 10.09 XMM-NEWTON
34 3XMM J183658.4-072119 18 36 58.46 -07 21 19.80 10.09 XMM-NEWTON
35 3XMM J183816.5-071506 18 38 16.56 -07 15 06.48 10.27 XMM-NEWTON
36 3XMM J183731.5-072818 18 37 31.54 -07 28 18.84 10.58 XMM-NEWTON
37 3XMM J183750.0-070731 18 37 50.71 -07 07 31.80 10.81 XMM-NEWTON
3XMM J183750.0-070731 18 37 50.40 -07 07 31.44 10.81 XMM-NEWTON
38 3XMM J183813.9-072429 18 38 13.99 -07 24 29.88 11.43 XMM-NEWTON
39 3XMM J183754.9-072820 18 37 54.96 -07 28 20.64 11.48 XMM-NEWTON
40 3XMM J183822.8-071643 18 38 22.90 -07 16 42.96 11.53 XMM-NEWTON
41 3XMM J183807.9-070846 18 38 07.92 -07 08 45.96 11.92 XMM-NEWTON
42 3XMM J183729.8-070548 18 37 29.93 -07 05 49.92 12.09 XMM-NEWTON
43 3XMM J183718.2-072926 18 37 18.22 -07 29 26.16 12.49 XMM-NEWTON
44 3XMM J183652.4-072458 18 36 52.42 -07 24 58.68 13.09 XMM-NEWTON
45 3XMM J183804.2-070616 18 38 04.27 -07 06 16.56 13.42 XMM-NEWTON
46 3XMM J183811.8-072827 18 38 11.86 -07 28 27.48 13.78 XMM-NEWTON
47 3XMM J183648.9-072703 18 36 48.91 -07 27 03.60 15.01 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J183739-071759 18 37 39.19 -07 17 58.92 0.66 NVSS
2 MAGPIS Discrete G24.84053-0.22 18 37 24.19 -07 17 56.04 3.09 MAGPIS
3 PMN J1837-0721 18 37 37.20 -07 21 11.88 3.40 PMN
4 NVSS J183748-072004 18 37 48.31 -07 20 04.92 3.68 NVSS
5 MAGPIS Discrete G24.83645-0.33 18 37 47.21 -07 21 10.08 4.25 MAGPIS
[WBH2005] G24.836-0.333 18 37 47.11 -07 21 11.16 4.27 WBHGP6CM
6 NVSS J183757-071803 18 37 57.70 -07 18 03.96 5.23 NVSS
7 NVSS J183755-071503 18 37 55.01 -07 15 02.88 5.33 NVSS
8 MAGPIS Discrete G24.91798-0.34 18 37 58.01 -07 17 03.12 5.36 MAGPIS
9 MAGPIS Discrete G24.80502-0.34 18 37 45.60 -07 23 04.92 5.72 MAGPIS
10 MAGPIS Discrete G24.76216-0.26 18 37 24.50 -07 23 17.16 6.24 MAGPIS
11 NVSS J183802-071856 18 38 02.59 -07 18 56.16 6.54 NVSS
12 NVSS J183759-072058 18 37 59.71 -07 20 57.84 6.54 NVSS
13 MAGPIS Discrete G24.74533-0.27 18 37 25.30 -07 24 30.96 7.27 MAGPIS
14 NVSS J183730-071011 18 37 30.70 -07 10 12.00 7.75 NVSS
[WBH2005] G24.748-0.208 18 37 10.51 -07 22 27.84 7.97 WBHGP6CM
[WBH2005] G24.748-0.206 18 37 10.20 -07 22 23.88 8.00 WBHGP6CM
[WBH2005] G24.749-0.201 18 37 09.10 -07 22 12.00 8.12 WBHGP6CM
MAGPIS Diffuse G24.7417-0.2083 18 37 09.41 -07 22 24.96 8.17 MAGPIS
15 NVSS J183709-072240 18 37 09.70 -07 22 40.08 8.26 NVSS
[WBH2005] G24.744-0.201 18 37 08.59 -07 22 28.92 8.36 WBHGP6CM
16 NVSS J183811-071755 18 38 11.59 -07 17 54.96 8.67 NVSS
17 NVSS J183710-072355 18 37 10.90 -07 23 56.04 8.84 NVSS
18 [WBH2005] G24.712-0.237 18 37 12.79 -07 25 09.12 9.43 WBHGP6CM
[WBH2005] G24.709-0.244 18 37 13.80 -07 25 30.00 9.54 WBHGP6CM
19 NVSS J183743-070806 18 37 43.39 -07 08 06.00 9.85 NVSS
20 MAGPIS Diffuse G24.8319-0.1014 18 36 58.70 -07 14 48.84 9.85 MAGPIS
21 NVSS J183813-071336 18 38 13.20 -07 13 36.12 10.01 NVSS
22 NVSS J183819-071816 18 38 19.20 -07 18 15.84 10.56 NVSS
23 NVSS J183735-070712 18 37 35.21 -07 07 13.08 10.60 NVSS
24 NVSS J183811-072407 18 38 10.99 -07 24 07.92 10.62 NVSS
25 NVSS J183821-072012 18 38 21.10 -07 20 12.84 11.28 NVSS
26 NVSS J183816-071219 18 38 16.61 -07 12 20.16 11.34 NVSS
27 NVSS J183814-070942 18 38 13.99 -07 09 42.84 12.32 NVSS
[WBH2005] G24.711-0.131 18 36 49.80 -07 22 18.12 12.44 WBHGP6CM
[WBH2005] G24.712-0.129 18 36 49.51 -07 22 09.84 12.48 WBHGP6CM
[WBH2005] G24.711-0.128 18 36 49.30 -07 22 13.08 12.53 WBHGP6CM
28 NVSS J183648-072203 18 36 48.91 -07 22 04.08 12.57 NVSS
MAGPIS Diffuse G24.7167-0.0861 18 36 48.79 -07 22 10.92 12.63 MAGPIS
[WBH2005] G24.710-0.126 18 36 48.79 -07 22 12.00 12.65 WBHGP6CM
29 NVSS J183824-072200 18 38 24.70 -07 22 00.84 12.65 NVSS
30 PMN J1836-0724 18 36 50.81 -07 24 03.96 12.97 PMN
SG 024.7-00.2 18 36 51.31 -07 24 20.16 13.00 DIXON
31 NVSS J183652-072453 18 36 52.01 -07 24 52.92 13.13 NVSS
32 GD 024.7-00.1 18 36 48.41 -07 23 20.04 13.17 DIXON
33 NVSS J183823-072355 18 38 23.71 -07 23 54.96 13.17 NVSS
[WBH2005] G24.677-0.157 18 36 51.60 -07 24 50.04 13.18 WBHGP6CM
[WBH2005] G24.677-0.155 18 36 51.19 -07 24 42.84 13.21 WBHGP6CM
BG 1834-07 18 36 50.40 -07 24 24.84 13.23 DIXON
34 [WBH2005] G24.670-0.164 18 36 52.51 -07 25 22.08 13.28 WBHGP6CM
35 NVSS J183819-072551 18 38 19.20 -07 25 51.96 13.29 NVSS
[WBH2005] G24.671-0.163 18 36 52.20 -07 25 18.12 13.31 WBHGP6CM
MAGPIS Diffuse G24.6819-0.1625 18 36 50.81 -07 24 47.88 13.34 MAGPIS
[WBH2005] G24.673-0.157 18 36 51.31 -07 25 03.00 13.37 WBHGP6CM
[WBH2005] G24.673-0.156 18 36 51.00 -07 25 00.84 13.41 WBHGP6CM
36 NVSS J183823-072515 18 38 23.30 -07 25 15.96 13.76 NVSS
37 MAGPIS Diffuse G24.9528-0.0472 18 37 00.29 -07 06 59.04 14.09 MAGPIS
38 MAGPIS Discrete G24.77104-0.50 18 38 16.30 -07 29 18.96 15.14 MAGPIS

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