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 J1817.3-3033

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J1817.3-3033 Swift-XRT detections in the field for 3FGL J1817.3-3033

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 18 17 50.90 -30 26 30.90 3.53 (2.47 ± 0.04) x 10-1 3483 61.760 55.630
2 18 17 20.35 -30 32 57.80 3.67 (3.3 ± 0.2) x 10-2 513 19.570 20.350
3 18 18 10.88 -30 20 58.31 4.04 (7.7 ± 0.8) x 10-3 120 10.100 9.865
4 18 17 33.81 -30 22 32.78 4.56 (1.4 ± 0.5) x 10-3 30 3.414 3.200

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 18 09.18 -30 27 11.76 4.30 (1.1 ± 0.4) x 10-3 39 3.287 2.730
2 18 17 16.72 -30 28 13.66 4.45 (8 ± 4) x 10-4 48 2.899 2.254
3 18 17 50.90 -30 26 30.87 3.53 (8 ± 19) x 10-4 3483 8.356 0.434
4 18 17 50.90 -30 26 30.88 3.53 N/A 3483 3.510 N/A
5 18 17 50.90 -30 26 30.87 3.53 N/A 3441 3.579 N/A

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J1817.3-3033 Swift-XRT image with known radio, optical and UV sources for 3FGL J1817.3-3033

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 3XMM J181720.6-303259 18 17 20.78 -30 33 01.44 0.32 XMM-NEWTON
3XMM J181720.6-303259 18 17 20.40 -30 32 57.84 0.41 XMM-NEWTON
2 3XMM J181723.3-303404 18 17 23.35 -30 34 04.80 0.98 XMM-NEWTON
3 2E 1814.2-3034 18 17 28.15 -30 32 50.64 1.32 EINSTEIN
4 3XMM J181735.4-303421 18 17 35.50 -30 34 21.00 3.12 XMM-NEWTON
5 3XMM J181706.8-302913 18 17 06.94 -30 29 15.00 5.08 XMM-NEWTON
3XMM J181706.8-302913 18 17 06.79 -30 29 11.76 5.15 XMM-NEWTON
6 3XMM J181714.5-302801 18 17 14.52 -30 28 01.92 5.36 XMM-NEWTON
3XMM J181714.5-302740 18 17 14.59 -30 27 40.68 5.70 XMM-NEWTON
7 3XMM J181750.2-303230 18 17 50.23 -30 32 30.48 6.07 XMM-NEWTON
3XMM J181751.5-303212 18 17 51.58 -30 32 12.84 6.40 XMM-NEWTON
8 3XMM J181700.1-302658 18 17 00.14 -30 26 58.56 7.77 XMM-NEWTON
9 3XMM J181655.2-302752 18 16 55.25 -30 27 52.92 7.83 XMM-NEWTON
10 3XMM J181759.6-303200 18 17 59.66 -30 32 00.96 8.15 XMM-NEWTON
11 3XMM J181802.0-303331 18 18 02.71 -30 33 31.32 8.60 XMM-NEWTON
12 3XMM J181747.4-304001 18 17 47.42 -30 40 01.20 8.77 XMM-NEWTON
13 3XMM J181751.2-302657 18 17 51.26 -30 26 57.12 8.80 XMM-NEWTON
14 3XMM J181757.1-302817 18 17 57.12 -30 28 17.76 8.95 XMM-NEWTON
3XMM J181750.5-302630 18 17 50.42 -30 26 31.56 8.98 XMM-NEWTON
15 3XMM J181746.3-302547 18 17 46.34 -30 25 47.64 9.00 XMM-NEWTON
3XMM J181750.5-302630 18 17 50.76 -30 26 29.76 9.06 XMM-NEWTON
16 3XMM J181805.5-303515 18 18 05.33 -30 35 20.04 9.54 XMM-NEWTON
3XMM J181805.5-303515 18 18 05.57 -30 35 15.00 9.58 XMM-NEWTON
17 3XMM J181757.9-302722 18 17 57.98 -30 27 22.32 9.63 XMM-NEWTON
3XMM J181805.6-303531 18 18 05.64 -30 35 31.20 9.65 XMM-NEWTON
18 3XMM J181805.5-303017 18 18 05.52 -30 30 18.00 9.75 XMM-NEWTON
3XMM J181806.2-303041 18 18 06.22 -30 30 41.40 9.79 XMM-NEWTON
19 3XMM J181755.4-302628 18 17 55.51 -30 26 27.96 9.80 XMM-NEWTON
20 3XMM J181719.2-302258 18 17 19.25 -30 22 58.80 10.17 XMM-NEWTON
21 3XMM J181749.2-302441 18 17 49.27 -30 24 41.04 10.27 XMM-NEWTON
22 3XMM J181809.9-303236 18 18 09.96 -30 32 36.96 10.30 XMM-NEWTON
23 3XMM J181700.6-302355 18 17 00.65 -30 23 56.04 10.30 XMM-NEWTON
24 3XMM J181811.7-303313 18 18 11.76 -30 33 13.32 10.67 XMM-NEWTON
25 3XMM J181812.3-303030 18 18 12.31 -30 30 30.96 11.11 XMM-NEWTON
26 3XMM J181811.6-302953 18 18 11.62 -30 29 53.88 11.13 XMM-NEWTON
27 3XMM J181810.5-303720 18 18 10.20 -30 37 19.56 11.15 XMM-NEWTON
28 3XMM J181813.4-303122 18 18 13.44 -30 31 22.08 11.18 XMM-NEWTON
29 3XMM J181810.9-302909 18 18 10.99 -30 29 09.24 11.24 XMM-NEWTON
30 3XMM J181814.4-303209 18 18 14.45 -30 32 09.96 11.30 XMM-NEWTON
3XMM J181810.5-303720 18 18 11.28 -30 37 23.16 11.39 XMM-NEWTON
31 3XMM J181815.2-303241 18 18 15.22 -30 32 41.64 11.43 XMM-NEWTON
32 3XMM J181815.1-303430 18 18 15.12 -30 34 30.36 11.48 XMM-NEWTON
33 3XMM J181814.3-303532 18 18 14.35 -30 35 32.28 11.49 XMM-NEWTON
34 3XMM J181756.9-302420 18 17 56.90 -30 24 20.52 11.54 XMM-NEWTON
35 3XMM J181810.6-303810 18 18 10.63 -30 38 09.96 11.58 XMM-NEWTON
36 3XMM J181816.1-303314 18 18 16.15 -30 33 15.12 11.62 XMM-NEWTON
3XMM J181811.8-303759 18 18 11.86 -30 37 59.88 11.75 XMM-NEWTON
37 3XMM J181752.7-302313 18 17 52.73 -30 23 13.20 11.90 XMM-NEWTON
38 3XMM J181706.1-302138 18 17 06.17 -30 21 38.88 11.99 XMM-NEWTON
39 3XMM J181817.1-303549 18 18 17.16 -30 35 48.84 12.13 XMM-NEWTON
40 3XMM J181814.5-303809 18 18 14.52 -30 38 09.24 12.33 XMM-NEWTON
41 3XMM J181809.0-302547 18 18 09.50 -30 25 47.28 12.48 XMM-NEWTON
42 3XMM J181814.6-303842 18 18 14.64 -30 38 43.08 12.59 XMM-NEWTON
43 3XMM J181809.4-302512 18 18 09.48 -30 25 12.72 12.91 XMM-NEWTON
44 3XMM J181640.1-302352 18 16 40.13 -30 23 52.80 12.95 XMM-NEWTON
3XMM J181809.3-302455 18 18 09.34 -30 24 55.08 13.07 XMM-NEWTON
3XMM J181816.6-303854 18 18 16.66 -30 38 54.24 13.07 XMM-NEWTON
45 3XMM J181758.5-302230 18 17 58.51 -30 22 30.36 13.20 XMM-NEWTON
46 3XMM J181817.4-303908 18 18 17.42 -30 39 08.28 13.32 XMM-NEWTON
47 3XMM J181809.6-302400 18 18 09.60 -30 24 00.36 13.70 XMM-NEWTON
48 3XMM J181809.9-302323 18 18 09.96 -30 23 23.28 14.18 XMM-NEWTON
49 3XMM J181809.7-302252 18 18 09.74 -30 22 52.32 14.50 XMM-NEWTON
50 3XMM J181817.0-302415 18 18 17.30 -30 24 15.12 14.78 XMM-NEWTON
51 3XMM J181810.6-302159 18 18 10.66 -30 21 59.76 15.27 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J181720-303257 18 17 20.40 -30 32 57.84 0.42 NVSS
2 NVSS J181720-303033 18 17 20.30 -30 30 33.12 2.61 NVSS
3 OU-322 18 16 56.30 -30 38 53.16 8.00 DIXON
4 NVSS J181639-302700 18 16 39.79 -30 27 01.08 10.99 NVSS

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