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.

2FGL J1835.5-0649

Field

Detected Excesses

Swift-XRT image of the field for 2FGL J1835.5-0649 Swift-XRT detections in the field for 2FGL J1835.5-0649

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 18 36 19.10 -06 47 25.68 4.50 (2.1 ± 0.6) x 10-3 32 3.860 3.405
2 18 36 19.67 -06 39 02.85 4.88 (1.7 ± 0.5) x 10-3 25 3.762 3.156

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 36 07.66 -06 44 36.64 4.66 (1.4 ± 0.5) x 10-3 18 2.666 2.642
2 18 36 14.07 -06 45 28.37 4.37 (1.2 ± 0.5) x 10-3 36 3.452 2.223
3 18 36 04.55 -06 44 04.43 4.78 (10 ± 5) x 10-4 22 3.221 2.112
4 18 36 16.75 -06 43 17.95 4.69 (9 ± 5) x 10-4 25 3.028 1.922
5 18 36 19.10 -06 47 25.68 4.50 (6 ± 4) x 10-4 32 2.835 1.314
6 18 36 16.71 -06 46 11.67 4.28 (3 ± 4) x 10-4 33 3.566 0.670

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 2FGL J1835.5-0649 Swift-XRT image with known radio, optical and UV sources for 2FGL J1835.5-0649

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1WGA J1835.3-0651 18 35 22.39 -06 51 14.04 3.58 ROSAT
2 3XMM J183546.9-064721 18 35 46.92 -06 47 21.48 3.75 XMM-NEWTON
3 3XMM J183545.4-064647 18 35 45.41 -06 46 47.64 3.91 XMM-NEWTON
4 3XMM J183536.4-065347 18 35 36.46 -06 53 47.76 3.93 XMM-NEWTON
5 3XMM J183553.1-065139 18 35 53.21 -06 51 39.24 4.69 XMM-NEWTON
6 1WGA J1835.7-0645 18 35 43.20 -06 45 21.24 4.88 ROSAT
7 3XMM J183530.2-064453 18 35 30.29 -06 44 53.52 5.16 XMM-NEWTON
8 3XMM J183547.6-064514 18 35 47.62 -06 45 14.40 5.49 XMM-NEWTON
9 3XMM J183548.4-064310 18 35 48.43 -06 43 10.20 7.41 XMM-NEWTON
10 1WGA J1835.7-0642 18 35 46.20 -06 42 55.08 7.42 ROSAT
11 3XMM J183558.9-065508 18 35 58.92 -06 55 08.76 7.81 XMM-NEWTON
3XMM J183548.1-064241 18 35 48.12 -06 42 41.76 7.81 XMM-NEWTON
12 3XMM J183529.0-064205 18 35 29.40 -06 42 05.76 7.95 XMM-NEWTON
13 3XMM J183556.2-064318 18 35 56.28 -06 43 18.48 8.31 XMM-NEWTON
14 3XMM J183602.8-064357 18 36 02.86 -06 43 57.36 8.97 XMM-NEWTON
15 3XMM J183612.8-064819 18 36 12.84 -06 48 19.08 9.35 XMM-NEWTON
16 3XMM J183612.2-064728 18 36 12.24 -06 47 29.04 9.38 XMM-NEWTON
17 3XMM J183606.8-064432 18 36 06.86 -06 44 32.64 9.39 XMM-NEWTON
18 3XMM J183614.3-064713 18 36 14.38 -06 47 13.92 9.96 XMM-NEWTON
19 3XMM J183608.7-064338 18 36 08.76 -06 43 38.64 10.30 XMM-NEWTON
20 3XMM J183613.5-064527 18 36 13.51 -06 45 27.72 10.37 XMM-NEWTON
21 3XMM J183551.5-064000 18 35 51.58 -06 40 00.12 10.63 XMM-NEWTON
22 3XMM J183614.3-065447 18 36 14.30 -06 54 47.16 10.77 XMM-NEWTON
2RXP J183616.8-064617 18 36 16.75 -06 46 17.04 10.80 ROSAT
23 3XMM J183615.5-064530 18 36 15.55 -06 45 30.60 10.81 XMM-NEWTON
1WGA J1836.2-0646 18 36 17.11 -06 46 15.24 10.89 ROSAT
AX J183618-0647 18 36 18.72 -06 47 13.20 11.00 ASCA
24 3XMM J183619.0-064727 18 36 19.61 -06 47 27.60 11.03 XMM-NEWTON
AX J1836.3-0647 18 36 19.01 -06 47 12.12 11.07 INTEGRAL
25 3XMM J183618.2-064623 18 36 18.24 -06 46 23.52 11.11 XMM-NEWTON
26 3XMM J183615.2-064431 18 36 15.29 -06 44 31.20 11.19 XMM-NEWTON
3XMM J183617.0-064521 18 36 17.21 -06 45 21.24 11.21 XMM-NEWTON
3XMM J183619.3-064626 18 36 19.39 -06 46 26.76 11.37 XMM-NEWTON
3XMM J183616.6-064444 18 36 16.61 -06 44 44.16 11.38 XMM-NEWTON
27 2E 1833.6-0649 18 36 21.00 -06 46 47.64 11.66 EINSTEIN
2E 1833.6-0649 18 36 21.10 -06 46 47.28 11.66 EINSTEIN
28 1RXS J183607.2-064057 18 36 07.20 -06 40 57.00 11.86 ROSAT
29 3XMM J183621.0-064600 18 36 21.10 -06 46 00.12 11.91 XMM-NEWTON
30 3XMM J183616.7-064329 18 36 16.75 -06 43 29.64 12.02 XMM-NEWTON
31 2RXP J183615.0-064250 18 36 14.95 -06 42 50.04 12.02 ROSAT
3XMM J183616.3-064311 18 36 16.39 -06 43 11.64 12.11 XMM-NEWTON
32 3XMM J183621.6-064530 18 36 21.70 -06 45 30.60 12.22 XMM-NEWTON
33 3XMM J183623.3-064639 18 36 23.38 -06 46 39.00 12.26 XMM-NEWTON
34 1WGA J1836.2-0641 18 36 13.90 -06 41 39.84 12.54 ROSAT
35 3XMM J183448.7-065455 18 34 48.74 -06 54 55.44 12.70 XMM-NEWTON
36 3XMM J183609.6-064017 18 36 09.70 -06 40 17.76 12.76 XMM-NEWTON
37 3XMM J183612.6-064058 18 36 12.70 -06 40 58.80 12.78 XMM-NEWTON
38 3XMM J183616.2-064158 18 36 16.27 -06 41 58.56 12.80 XMM-NEWTON
39 3XMM J183614.1-065839 18 36 14.14 -06 58 39.00 12.96 XMM-NEWTON
3XMM J183615.8-064134 18 36 15.89 -06 41 34.08 12.98 XMM-NEWTON
3XMM J183617.6-064155 18 36 17.71 -06 41 55.68 13.11 XMM-NEWTON
40 1WGA J1836.1-0640 18 36 11.40 -06 40 00.48 13.26 ROSAT
41 1RXS J183607.2-064057 18 36 09.53 -06 39 32.76 13.31 ROSAT
42 3XMM J183622.2-064218 18 36 22.20 -06 42 18.36 13.80 XMM-NEWTON
2E 1833.6-0641 18 36 20.16 -06 39 19.44 15.26 EINSTEIN
2E 1833.6-0641 18 36 20.23 -06 39 19.44 15.28 EINSTEIN
43 3XMM J183620.2-063904 18 36 20.26 -06 39 05.04 15.45 XMM-NEWTON
3XMM J183620.2-063904 18 36 20.81 -06 39 01.44 15.46 XMM-NEWTON
1WGA J1836.3-0639 18 36 21.10 -06 39 00.72 15.65 ROSAT
2RXP J183621.1-063859 18 36 21.41 -06 38 58.92 15.66 ROSAT
1WGA J1836.3-0638 18 36 20.50 -06 38 44.88 15.73 ROSAT
44 3XMM J183619.1-070127 18 36 19.15 -07 01 27.48 15.82 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J183543-065145 18 35 43.01 -06 51 46.08 2.62 NVSS
2 NVSS J183536-065254 18 35 36.31 -06 52 54.84 3.04 NVSS
3 NVSS J183531-064650 18 35 31.80 -06 46 50.16 3.18 NVSS
4 NVSS J183538-065345 18 35 38.50 -06 53 45.96 3.95 NVSS
5 MAGPIS Discrete G25.03633+0.46 18 35 17.59 -06 48 27.00 4.72 MAGPIS
6 [WBH2005] G25.018+0.304 18 35 50.69 -06 53 54.96 5.50 WBHGP20CM
7 NVSS J183518-065317 18 35 18.31 -06 53 17.88 5.52 NVSS
MAGPIS Discrete G25.01806+0.30 18 35 50.69 -06 53 57.12 5.52 MAGPIS
[WBH2005] G25.018+0.303 18 35 50.69 -06 53 57.84 5.53 WBHGP6CM
8 NVSS J183556-064645 18 35 56.71 -06 46 45.12 6.08 NVSS
9 NVSS J183524-065531 18 35 24.31 -06 55 32.16 6.33 NVSS
10 GPA 024.98+0.47 18 35 10.61 -06 51 14.04 6.38 GPA
11 NVSS J183543-064330 18 35 43.61 -06 43 31.08 6.65 NVSS
12 MAGPIS Discrete G25.13593+0.46 18 35 28.80 -06 43 09.84 6.93 MAGPIS
13 NVSS J183511-065412 18 35 11.11 -06 54 12.96 7.49 NVSS
14 NVSS J183533-064145 18 35 33.70 -06 41 44.88 8.13 NVSS
15 NVSS J183602-065516 18 36 02.11 -06 55 15.96 8.48 NVSS
MAGPIS Discrete G25.02424+0.25 18 36 02.81 -06 55 05.16 8.50 MAGPIS
[WBH2005] G25.024+0.250 18 36 02.81 -06 55 05.16 8.50 WBHGP6CM
16 NVSS J183514-065647 18 35 14.40 -06 56 48.12 8.71 NVSS
[WBH2005] G24.906+0.415 18 35 14.21 -06 56 49.92 8.77 WBHGP20CM
MAGPIS Discrete G24.90584+0.41 18 35 14.21 -06 56 49.92 8.77 MAGPIS
17 MAGPIS Discrete G24.99140+0.25 18 35 58.99 -06 56 48.84 9.03 MAGPIS
18 NVSS J183459-064724 18 34 59.71 -06 47 24.00 9.26 NVSS
19 NVSS J183508-064316 18 35 08.69 -06 43 15.96 9.41 NVSS
20 PMN J1835-0656 18 35 06.79 -06 56 02.04 9.46 PMN
21 NVSS J183614-064739 18 36 14.21 -06 47 39.84 9.81 NVSS
22 NVSS J183614-065214 18 36 14.21 -06 52 14.16 9.85 NVSS
23 NVSS J183530-065947 18 35 30.41 -06 59 47.04 10.00 NVSS
24 PSR J1835-0643 18 35 05.59 -06 43 05.88 10.09 ATNFPULSAR
MAGPIS Discrete G25.09249+0.55 18 35 05.50 -06 43 05.88 10.10 MAGPIS
TGSSADR J183505.1-064311 18 35 05.21 -06 43 12.00 10.11 GMRTAS150M
25 MAGPIS Discrete G24.89601+0.45 18 35 03.79 -06 56 08.88 10.12 MAGPIS
26 NVSS J183558-065825 18 35 58.20 -06 58 24.96 10.21 NVSS
27 NVSS J183454-065040 18 34 54.41 -06 50 40.92 10.28 NVSS
28 NVSS J183455-064652 18 34 55.51 -06 46 53.04 10.42 NVSS
29 KES71 18 36 17.71 -06 48 28.08 10.52 DIXON
30 MAGPIS Discrete G25.06697+0.21 18 36 15.19 -06 53 47.04 10.54 MAGPIS
31 NVSS J183535-063908 18 35 35.81 -06 39 07.92 10.73 NVSS
32 NVSS J183614-065447 18 36 14.81 -06 54 47.16 10.87 NVSS
33 NVSS J183530-070039 18 35 30.29 -07 00 39.96 10.88 NVSS
34 NVSS J183530-063854 18 35 30.19 -06 38 54.96 11.05 NVSS
MAGPIS Discrete G25.11169+0.21 18 36 20.59 -06 51 28.08 11.24 MAGPIS
35 NVSS J183616-064449 18 36 16.20 -06 44 48.84 11.25 NVSS
[WBH2005] G25.111+0.212 18 36 20.59 -06 51 29.16 11.26 WBHGP6CM
MAGPIS Discrete G25.10869+0.21 18 36 20.59 -06 51 39.96 11.28 MAGPIS
36 NVSS J183451-065201 18 34 51.10 -06 52 01.92 11.29 NVSS
[WBH2005] G25.108+0.211 18 36 20.59 -06 51 42.12 11.29 WBHGP6CM
37 NVSS J183620-065126 18 36 20.90 -06 51 27.00 11.31 NVSS
38 NVSS J183558-070008 18 35 58.39 -07 00 07.92 11.72 NVSS
39 NVSS J183615-064335 18 36 15.79 -06 43 35.04 11.78 NVSS
MAGPIS Diffuse G25.2222+0.2917 18 36 16.39 -06 43 41.88 11.83 MAGPIS
40 NVSS J183530-070140 18 35 31.01 -07 01 41.16 11.86 NVSS
41 NVSS J183616-065614 18 36 16.39 -06 56 13.92 11.94 NVSS
42 NVSS J183525-070136 18 35 25.80 -07 01 36.12 11.99 NVSS
43 NVSS J183544-070141 18 35 45.00 -07 01 41.16 12.04 NVSS
44 MAGPIS Discrete G25.05719+0.17 18 36 21.70 -06 55 17.04 12.63 MAGPIS
[WBH2005] G25.057+0.179 18 36 21.79 -06 55 18.12 12.67 WBHGP6CM
45 NVSS J183516-070150 18 35 16.99 -07 01 50.88 12.85 NVSS
46 BG 1833-07 18 36 16.01 -07 00 28.08 14.57 DIXON
47 ADG025.3+00.3 18 36 22.51 -06 40 50.88 14.71 DIXON
48 SG 025.3+00.3 18 36 16.61 -06 39 06.12 14.81 DIXON
[WBH2005] G25.288+0.317 18 36 17.81 -06 39 11.16 14.95 WBHGP6CM
MAGPIS Diffuse G25.2917+0.3083 18 36 18.10 -06 39 14.04 14.97 MAGPIS
PMN J1836-0639 18 36 21.10 -06 39 36.00 15.25 PMN
49 NVSS J183620-063922 18 36 20.30 -06 39 21.96 15.27 NVSS
50 NVSS J183618-063839 18 36 18.31 -06 38 39.84 15.42 NVSS

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