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.

1FGL J2216.1+5139

Field

Detected Excesses

Swift-XRT image of the field for 1FGL J2216.1+5139 Swift-XRT detections in the field for 1FGL J2216.1+5139

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 22 15 31.68 +51 35 29.42 4.11 (2.4 ± 0.4) x 10-3 98 6.503 6.689
2 22 15 45.97 +51 44 54.84 4.15 (2.2 ± 0.3) x 10-3 83 6.946 6.566
3 22 15 18.78 +51 46 13.39 4.30 (1.1 ± 0.3) x 10-3 49 4.676 4.297
4 22 15 35.06 +51 32 35.62 4.55 (9 ± 2) x 10-4 38 3.586 3.835
5 22 14 34.07 +51 31 56.19 4.41 (8 ± 2) x 10-4 29 3.872 3.800
6 22 16 01.75 +51 29 35.53 4.47 (8 ± 2) x 10-4 43 3.750 3.790
7 22 15 51.28 +51 39 36.00 4.44 (1.1 ± 0.3) x 10-3 48 3.321 3.671
8 22 15 03.84 +51 29 03.28 4.49 (8 ± 2) x 10-4 37 3.374 3.496
9 22 15 12.32 +51 39 27.49 4.42 (8 ± 2) x 10-4 41 3.810 3.495
10 22 16 23.91 +51 35 51.57 4.47 (7 ± 2) x 10-4 50 3.259 3.277

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 22 15 31.80 +51 35 29.74 4.11 (9 ± 3) x 10-4 95 3.607 3.596
2 22 14 20.43 +51 41 16.67 4.78 (5 ± 2) x 10-4 18 2.849 2.791
3 22 14 30.78 +51 30 39.77 4.54 (4 ± 2) x 10-4 19 2.707 2.589
4 22 15 01.58 +51 30 30.95 4.52 (5 ± 2) x 10-4 20 2.700 2.454
5 22 16 22.30 +51 30 38.11 4.44 (4 ± 2) x 10-4 38 3.056 2.074

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 1FGL J2216.1+5139 Swift-XRT image with known radio, optical and UV sources for 1FGL J2216.1+5139

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 3XMM J221604.7+513943 22 16 04.73 +51 39 43.92 0.38 XMM-NEWTON
2 3XMM J221603.1+514035 22 16 03.12 +51 40 35.04 1.17 XMM-NEWTON
3 3XMM J221558.2+513918 22 15 58.30 +51 39 18.00 1.38 XMM-NEWTON
4 3XMM J221605.8+514109 22 16 05.83 +51 41 09.60 1.59 XMM-NEWTON
5 3XMM J221611.4+513740 22 16 11.45 +51 37 41.16 2.02 XMM-NEWTON
6 3XMM J221603.8+513725 22 16 03.84 +51 37 25.68 2.21 XMM-NEWTON
3XMM J221550.8+513927 22 15 50.86 +51 39 27.36 2.51 XMM-NEWTON
7 CXOGSG J221550.7+513927 22 15 50.76 +51 39 27.72 2.52 CHANDRA
8 3XMM J221618.6+514125 22 16 18.67 +51 41 25.08 2.58 XMM-NEWTON
9 CXOGSG J221546.4+513944 22 15 46.44 +51 39 44.64 3.19 CHANDRA
10 3XMM J221631.7+513912 22 16 31.70 +51 39 12.60 3.85 XMM-NEWTON
3XMM J221555.0+513559 22 15 55.61 +51 35 59.64 4.04 XMM-NEWTON
11 CXOGSG J221554.9+513559 22 15 54.98 +51 35 59.28 4.05 CHANDRA
12 CXOGSG J221545.2+513714 22 15 45.29 +51 37 14.52 4.10 CHANDRA
3XMM J221545.2+513714 22 15 45.26 +51 37 14.16 4.11 XMM-NEWTON
13 3XMM J221634.1+513944 22 16 34.15 +51 39 44.64 4.21 XMM-NEWTON
14 CXOGSG J221550.4+513600 22 15 50.47 +51 36 00.72 4.40 CHANDRA
15 3XMM J221631.2+513709 22 16 31.20 +51 37 09.12 4.47 XMM-NEWTON
16 3XMM J221633.3+514141 22 16 33.34 +51 41 41.64 4.60 XMM-NEWTON
17 3XMM J221535.7+513909 22 15 35.76 +51 39 09.36 4.87 XMM-NEWTON
18 3XMM J221551.6+513504 22 15 51.62 +51 35 03.84 5.11 XMM-NEWTON
19 CXOGSG J221539.0+514221 22 15 39.10 +51 42 21.60 5.14 CHANDRA
3XMM J221538.9+514222 22 15 38.95 +51 42 22.32 5.17 XMM-NEWTON
20 3XMM J221605.1+513422 22 16 05.11 +51 34 22.44 5.22 XMM-NEWTON
21 3XMM J221626.7+513514 22 16 26.74 +51 35 14.28 5.32 XMM-NEWTON
22 3XMM J221642.9+513820 22 16 42.98 +51 38 21.12 5.72 XMM-NEWTON
23 3XMM J221640.5+514228 22 16 40.58 +51 42 28.80 5.96 XMM-NEWTON
24 CXOGSG J221531.1+513655 22 15 31.20 +51 36 55.08 6.16 CHANDRA
25 3XMM J221646.0+514054 22 16 46.10 +51 40 54.12 6.20 XMM-NEWTON
1RXS J221547.5+514501 22 15 47.52 +51 45 01.44 6.23 ROSAT
26 3XMM J221646.8+513822 22 16 46.87 +51 38 22.56 6.30 XMM-NEWTON
27 CXOGSG J221545.7+514457 22 15 45.79 +51 44 57.48 6.30 CHANDRA
3XMM J221545.8+514457 22 15 45.82 +51 44 57.84 6.31 XMM-NEWTON
28 CXOGSG J221531.7+513613 22 15 31.78 +51 36 13.32 6.42 CHANDRA
3XMM J221531.6+513614 22 15 31.70 +51 36 14.40 6.42 XMM-NEWTON
CXOGSG J221530.2+513636 22 15 30.24 +51 36 36.36 6.43 CHANDRA
3XMM J221529.9+513636 22 15 29.93 +51 36 36.72 6.48 XMM-NEWTON
29 3XMM J221539.2+514428 22 15 39.29 +51 44 28.32 6.51 XMM-NEWTON
30 3XMM J221629.0+513401 22 16 29.21 +51 34 01.20 6.53 XMM-NEWTON
31 3XMM J221608.1+514610 22 16 08.11 +51 46 10.92 6.60 XMM-NEWTON
32 CXOGSG J221532.7+513536 22 15 32.71 +51 35 36.60 6.64 CHANDRA
3XMM J221532.6+513536 22 15 32.69 +51 35 36.24 6.65 XMM-NEWTON
33 3XMM J221634.5+514440 22 16 34.58 +51 44 40.92 6.65 XMM-NEWTON
34 CXOGSG J221543.0+513357 22 15 43.10 +51 33 56.88 6.74 CHANDRA
35 3XMM J221526.3+513707 22 15 26.30 +51 37 07.68 6.77 XMM-NEWTON
36 3XMM J221647.0+513644 22 16 47.11 +51 36 44.28 6.83 XMM-NEWTON
3XMM J221521.5+513918 22 15 21.55 +51 39 18.72 7.06 XMM-NEWTON
37 CXOGSG J221521.5+513917 22 15 21.53 +51 39 18.00 7.06 CHANDRA
38 3XMM J221610.7+513226 22 16 10.73 +51 32 26.52 7.16 XMM-NEWTON
39 CXOGSG J221530.4+513508 22 15 30.43 +51 35 08.88 7.21 CHANDRA
3XMM J221530.4+513508 22 15 30.43 +51 35 08.52 7.21 XMM-NEWTON
40 3XMM J221608.4+514650 22 16 08.45 +51 46 50.88 7.27 XMM-NEWTON
41 3XMM J221603.7+513213 22 16 03.74 +51 32 13.56 7.38 XMM-NEWTON
3XMM J221555.0+513219 22 15 55.39 +51 32 19.68 7.49 XMM-NEWTON
42 CXOGSG J221555.0+513218 22 15 55.30 +51 32 18.60 7.50 CHANDRA
43 3XMM J221547.2+514626 22 15 47.21 +51 46 26.76 7.52 XMM-NEWTON
44 3XMM J221555.9+514658 22 15 55.94 +51 46 58.08 7.58 XMM-NEWTON
45 3XMM J221525.5+514344 22 15 25.56 +51 43 44.76 7.65 XMM-NEWTON
46 3XMM J221518.0+513822 22 15 18.91 +51 38 22.56 7.68 XMM-NEWTON
47 3XMM J221517.5+514018 22 15 17.52 +51 40 18.84 7.71 XMM-NEWTON
3XMM J221553.9+513156 22 15 53.95 +51 31 57.00 7.90 XMM-NEWTON
48 3XMM J221518.7+514255 22 15 18.77 +51 42 55.80 8.19 XMM-NEWTON
49 3XMM J221527.9+514513 22 15 27.96 +51 45 14.04 8.28 XMM-NEWTON
3XMM J221516.1+513654 22 15 16.10 +51 36 54.36 8.34 XMM-NEWTON
50 3XMM J221624.7+513141 22 16 24.72 +51 31 41.88 8.35 XMM-NEWTON
51 CXOGSG J221515.1+513717 22 15 15.14 +51 37 17.40 8.37 CHANDRA
3XMM J221515.0+513716 22 15 15.10 +51 37 16.32 8.38 XMM-NEWTON
52 CXOGSG J221512.1+513924 22 15 12.17 +51 39 24.48 8.51 CHANDRA
3XMM J221512.1+513924 22 15 12.12 +51 39 24.12 8.51 XMM-NEWTON
3XMM J221535.0+513239 22 15 35.40 +51 32 39.12 8.52 XMM-NEWTON
53 CXOGSG J221535.0+513239 22 15 35.50 +51 32 39.12 8.52 CHANDRA
3XMM J221556.8+513106 22 15 56.88 +51 31 06.60 8.62 XMM-NEWTON
54 CXOGSG J221556.7+513105 22 15 56.74 +51 31 05.52 8.64 CHANDRA
55 3XMM J221526.7+513334 22 15 26.74 +51 33 34.20 8.67 XMM-NEWTON
56 3XMM J221612.5+513051 22 16 12.55 +51 30 51.48 8.77 XMM-NEWTON
57 3XMM J221644.0+513255 22 16 44.71 +51 32 55.68 8.80 XMM-NEWTON
58 3XMM J221651.2+513358 22 16 51.24 +51 33 58.68 8.86 XMM-NEWTON
59 CXOGSG J221532.5+513220 22 15 32.59 +51 32 21.12 8.99 CHANDRA
60 3XMM J221642.9+513223 22 16 42.96 +51 32 23.28 9.11 XMM-NEWTON
3XMM J221531.3+513215 22 15 31.34 +51 32 15.72 9.18 XMM-NEWTON
61 CXOGSG J221542.5+513055 22 15 42.60 +51 30 55.44 9.45 CHANDRA
3XMM J221542.3+513055 22 15 42.34 +51 30 55.80 9.46 XMM-NEWTON
62 3XMM J221508.8+513539 22 15 08.88 +51 35 39.48 9.84 XMM-NEWTON
63 3XMM J221518.9+514615 22 15 18.94 +51 46 15.60 10.00 XMM-NEWTON
64 3XMM J221602.0+512935 22 16 02.40 +51 29 35.16 10.03 XMM-NEWTON
3XMM J221535.8+513046 22 15 35.90 +51 30 46.44 10.05 XMM-NEWTON
65 CXOGSG J221535.7+513044 22 15 35.76 +51 30 44.28 10.09 CHANDRA
3XMM J221537.8+513026 22 15 37.82 +51 30 26.28 10.21 XMM-NEWTON
66 3XMM J221539.2+514853 22 15 39.31 +51 48 53.64 10.25 XMM-NEWTON
67 CXOGSG J221516.4+513209 22 15 16.44 +51 32 09.60 10.80 CHANDRA
68 3XMM J221654.6+513140 22 16 54.62 +51 31 40.08 10.83 XMM-NEWTON
3XMM J221516.1+513209 22 15 16.18 +51 32 09.24 10.84 XMM-NEWTON
CXOGSG J221517.3+513140 22 15 17.30 +51 31 40.80 11.05 CHANDRA
3XMM J221517.2+513141 22 15 17.23 +51 31 41.52 11.05 XMM-NEWTON
69 3XMM J221455.9+513747 22 14 55.92 +51 37 47.64 11.17 XMM-NEWTON
70 3XMM J221457.4+514321 22 14 57.43 +51 43 21.36 11.42 XMM-NEWTON
71 3XMM J221621.4+512804 22 16 21.43 +51 28 04.44 11.72 XMM-NEWTON
72 3XMM J221452.1+513751 22 14 52.15 +51 37 51.24 11.74 XMM-NEWTON
73 3XMM J221552.4+512754 22 15 52.39 +51 27 55.08 11.88 XMM-NEWTON
74 3XMM J221455.6+513446 22 14 55.70 +51 34 46.92 12.07 XMM-NEWTON
75 3XMM J221450.7+513534 22 14 50.81 +51 35 34.44 12.49 XMM-NEWTON
76 3XMM J221503.3+513154 22 15 03.31 +51 31 54.12 12.52 XMM-NEWTON
77 3XMM J221453.0+513422 22 14 53.30 +51 34 22.44 12.61 XMM-NEWTON
78 1RXS J221723.8+514348 22 17 23.81 +51 43 48.00 12.62 ROSAT
79 3XMM J221520.9+512839 22 15 20.90 +51 28 39.36 13.07 XMM-NEWTON
80 3XMM J221501.7+513033 22 15 01.75 +51 30 33.48 13.58 XMM-NEWTON
81 3XMM J221503.3+512900 22 15 03.38 +51 29 00.60 14.47 XMM-NEWTON
82 3XMM J221453.2+512941 22 14 53.23 +51 29 41.28 15.14 XMM-NEWTON
83 3XMM J221458.1+512836 22 14 58.13 +51 28 36.84 15.33 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 PSR J2215+5135 22 15 32.71 +51 35 35.88 6.65 ATNFPULSAR
VLSSr J221532.9+513533 22 15 32.90 +51 35 34.08 6.65 VLSSR
TGSSADR J221532.7+513535 22 15 32.71 +51 35 35.16 6.65 GMRTAS150M
2 NVSS J221636+514502 22 16 36.19 +51 45 02.16 7.09 NVSS
3 NVSS J221646+514558 22 16 46.49 +51 45 59.04 8.85 NVSS
4 NVSS J221656+514650 22 16 55.99 +51 46 50.16 10.50 NVSS
5 NVSS J221506+513305 22 15 06.41 +51 33 06.12 11.43 NVSS

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