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 J1950.0+0904

Field

Detected Excesses

Swift-XRT image of the field for 1FGL J1950.0+0904 Swift-XRT detections in the field for 1FGL J1950.0+0904

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 19 49 34.35 +09 06 57.13 5.02 (6.7 ± 1.3) x 10-3 39 5.678 5.184
2 19 49 49.54 +09 01 37.98 6.31 (3.1 ± 0.9) x 10-3 17 3.428 3.469

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 19 49 43.79 +08 58 16.44 6.41 (2.0 ± 0.8) x 10-3 15 2.612 2.650
2 19 49 41.29 +09 09 33.95 7.71 (1.6 ± 0.6) x 10-3 8 2.536 2.548

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 1FGL J1950.0+0904 Swift-XRT image with known radio, optical and UV sources for 1FGL J1950.0+0904

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 3XMM J195008.5+090321 19 50 08.52 +09 03 21.24 1.31 XMM-NEWTON
2 3XMM J195016.1+090328 19 50 16.15 +09 03 28.08 2.87 XMM-NEWTON
3XMM J195017.4+090333 19 50 17.42 +09 03 33.12 3.14 XMM-NEWTON
3 1RXS J194951.3+090408 19 49 51.31 +09 04 08.40 3.41 ROSAT
2RXS J194951.2+090406 19 49 51.29 +09 04 06.60 3.42 ROSAT
4 3XMM J195017.2+090203 19 50 17.26 +09 02 03.48 3.78 XMM-NEWTON
5 3XMM J195003.3+090026 19 50 03.29 +09 00 26.64 3.94 XMM-NEWTON
6 3XMM J195006.7+090025 19 50 06.72 +09 00 25.92 3.94 XMM-NEWTON
3XMM J195005.4+090010 19 50 05.40 +09 00 10.44 4.18 XMM-NEWTON
3XMM J195005.4+090010 19 50 05.50 +09 00 10.08 4.19 XMM-NEWTON
7 3XMM J195021.9+090306 19 50 21.96 +09 03 06.84 4.34 XMM-NEWTON
8 1WGA J1949.8+0901 19 49 50.11 +09 01 46.20 4.52 ROSAT
9 3XMM J195006.6+085946 19 50 06.67 +08 59 46.68 4.59 XMM-NEWTON
3XMM J195006.6+085946 19 50 06.70 +08 59 46.32 4.60 XMM-NEWTON
10 3XMM J195016.0+090037 19 50 16.30 +09 00 37.44 4.60 XMM-NEWTON
2RXP J194950.1+090129 19 49 50.50 +09 01 28.92 4.70 ROSAT
11 3XMM J195013.3+085853 19 50 13.49 +08 58 56.64 5.79 XMM-NEWTON
3XMM J195013.3+085853 19 50 13.32 +08 58 50.88 5.87 XMM-NEWTON
12 3XMM J195017.7+085918 19 50 17.66 +08 59 18.60 5.92 XMM-NEWTON
3XMM J195017.7+085918 19 50 17.81 +08 59 19.68 5.93 XMM-NEWTON
13 3XMM J195026.5+085948 19 50 26.52 +08 59 48.48 6.97 XMM-NEWTON
3XMM J195026.5+085948 19 50 26.52 +08 59 47.76 6.98 XMM-NEWTON
14 3XMM J195021.8+085821 19 50 21.84 +08 58 21.72 7.28 XMM-NEWTON
3XMM J195021.8+085821 19 50 21.91 +08 58 21.72 7.29 XMM-NEWTON
15 3XMM J195004.4+085655 19 50 04.46 +08 56 56.04 7.43 XMM-NEWTON
3XMM J195004.6+085639 19 50 04.63 +08 56 39.12 7.70 XMM-NEWTON
16 3XMM J195037.7+090524 19 50 36.82 +09 05 17.88 7.89 XMM-NEWTON
17 3XMM J195029.8+085921 19 50 29.88 +08 59 21.84 7.89 XMM-NEWTON
3XMM J195029.8+085921 19 50 29.90 +08 59 21.84 7.90 XMM-NEWTON
18 3XMM J195017.4+085658 19 50 17.40 +08 56 57.84 7.99 XMM-NEWTON
19 3XMM J195010.5+085626 19 50 10.56 +08 56 26.16 8.03 XMM-NEWTON
1WGA J1950.6+0905 19 50 37.30 +09 05 33.00 8.04 ROSAT
2RXP J195037.5+090520 19 50 37.44 +09 05 20.04 8.04 ROSAT
20 3XMM J194959.1+085626 19 49 59.18 +08 56 26.16 8.06 XMM-NEWTON
21 1RXS J194934.1+090655 19 49 34.10 +09 06 55.08 8.07 ROSAT
1RXS J194934.1+090655 19 49 34.10 +09 06 55.44 8.07 ROSAT
2RXS J194934.0+090655 19 49 34.70 +09 06 55.80 8.08 ROSAT
3XMM J195037.7+090524 19 50 37.75 +09 05 25.08 8.13 XMM-NEWTON
2RXP J194933.8+090655 19 49 33.84 +09 06 55.08 8.13 ROSAT
22 2RXP J194943.5+085806 19 49 43.54 +08 58 05.88 8.22 ROSAT
23 3XMM J195038.4+090448 19 50 38.47 +09 04 48.72 8.25 XMM-NEWTON
1WGA J1949.5+0907 19 49 33.41 +09 07 07.68 8.31 ROSAT
24 1WGA J1949.6+0910 19 49 40.20 +09 10 02.28 8.37 ROSAT
25 3XMM J195023.3+085711 19 50 23.30 +08 57 11.52 8.46 XMM-NEWTON
26 3XMM J195039.1+090213 19 50 39.17 +09 02 13.20 8.67 XMM-NEWTON
27 3XMM J195032.6+085854 19 50 32.64 +08 58 54.84 8.71 XMM-NEWTON
28 3XMM J195023.1+085639 19 50 23.21 +08 56 39.84 8.89 XMM-NEWTON
29 3XMM J195004.4+085523 19 50 04.39 +08 55 23.88 8.96 XMM-NEWTON
3XMM J195004.4+085523 19 50 04.44 +08 55 23.52 8.97 XMM-NEWTON
30 3XMM J195029.5+085730 19 50 29.52 +08 57 30.60 9.12 XMM-NEWTON
31 3XMM J195042.6+090511 19 50 42.62 +09 05 11.76 9.30 XMM-NEWTON
32 3XMM J195013.6+085508 19 50 13.61 +08 55 08.40 9.45 XMM-NEWTON
33 3XMM J195034.8+085753 19 50 34.90 +08 57 53.64 9.79 XMM-NEWTON
34 3XMM J195040.2+085938 19 50 40.20 +08 59 38.40 9.86 XMM-NEWTON
35 3XMM J195004.0+085429 19 50 04.39 +08 54 29.16 9.87 XMM-NEWTON
36 3XMM J194955.3+085419 19 49 55.42 +08 54 21.60 10.28 XMM-NEWTON
37 3XMM J195044.4+090057 19 50 44.42 +09 00 57.60 10.28 XMM-NEWTON
3XMM J194955.3+085419 19 49 55.20 +08 54 17.64 10.36 XMM-NEWTON
38 3XMM J195047.0+090556 19 50 47.30 +09 05 56.40 10.47 XMM-NEWTON
39 3XMM J195021.1+085423 19 50 21.19 +08 54 23.40 10.73 XMM-NEWTON
3XMM J195022.3+085418 19 50 22.39 +08 54 18.72 10.91 XMM-NEWTON
40 3XMM J195041.5+085808 19 50 41.54 +08 58 08.40 10.94 XMM-NEWTON
41 3XMM J195044.0+085839 19 50 43.97 +08 58 39.00 11.16 XMM-NEWTON
3XMM J195044.0+085839 19 50 44.90 +08 58 39.72 11.18 XMM-NEWTON
42 3XMM J195027.6+085437 19 50 27.60 +08 54 38.52 11.19 XMM-NEWTON
3XMM J195027.6+085437 19 50 27.67 +08 54 36.00 11.23 XMM-NEWTON
43 3XMM J195032.1+085500 19 50 32.16 +08 55 00.48 11.49 XMM-NEWTON
44 3XMM J195037.7+085607 19 50 37.75 +08 56 07.08 11.52 XMM-NEWTON
45 3XMM J195001.0+085249 19 50 01.10 +08 52 49.80 11.57 XMM-NEWTON
46 3XMM J195010.6+085246 19 50 10.66 +08 52 46.92 11.65 XMM-NEWTON
3XMM J195010.6+085246 19 50 10.58 +08 52 46.20 11.67 XMM-NEWTON
47 3XMM J195046.9+085831 19 50 46.92 +08 58 32.52 11.85 XMM-NEWTON
3XMM J195046.9+085831 19 50 47.21 +08 58 30.72 11.88 XMM-NEWTON
48 3XMM J195052.1+090051 19 50 52.18 +09 00 51.48 12.14 XMM-NEWTON
1WGA J1950.5+0854 19 50 35.90 +08 54 49.32 12.19 ROSAT
49 3XMM J195046.6+085742 19 50 46.63 +08 57 42.84 12.21 XMM-NEWTON
2RXF J195036.1+085439 19 50 36.19 +08 54 38.88 12.38 ROSAT
2RXP J195036.3+085439 19 50 36.24 +08 54 38.88 12.38 ROSAT
50 3XMM J195050.0+085849 19 50 49.99 +08 58 49.80 12.38 XMM-NEWTON
3XMM J195050.0+085849 19 50 50.11 +08 58 49.80 12.41 XMM-NEWTON
51 3XMM J195036.2+085437 19 50 36.26 +08 54 37.08 12.41 XMM-NEWTON
2XMMi J195036.1+085435 19 50 36.17 +08 54 35.64 12.41 XMM-NEWTON
3XMM J195036.2+085437 19 50 36.31 +08 54 37.44 12.42 XMM-NEWTON
STAR, 2E 1948.2+0847 19 50 37.27 +08 54 48.60 12.42 EINSTEIN
2E 1948.2+0847 19 50 37.30 +08 54 48.60 12.42 EINSTEIN
2E 1948.2+0847 19 50 37.37 +08 54 48.96 12.43 EINSTEIN
2RXS J195036.6+085438 19 50 36.65 +08 54 38.52 12.45 ROSAT
52 3XMM J195033.1+085328 19 50 33.70 +08 53 28.68 12.89 XMM-NEWTON
3XMM J195033.1+085328 19 50 33.24 +08 53 29.04 12.90 XMM-NEWTON
53 3XMM J195051.7+085820 19 50 51.74 +08 58 20.64 12.99 XMM-NEWTON
3XMM J195051.7+085820 19 50 51.79 +08 58 19.56 13.01 XMM-NEWTON
54 3XMM J195044.5+085453 19 50 44.57 +08 54 53.64 13.58 XMM-NEWTON
3XMM J195044.5+085453 19 50 44.52 +08 54 52.56 13.59 XMM-NEWTON
55 3XMM J195040.3+085321 19 50 40.37 +08 53 22.20 14.02 XMM-NEWTON
3XMM J195040.3+085321 19 50 40.34 +08 53 21.48 14.03 XMM-NEWTON
56 3XMM J195042.5+085258 19 50 42.50 +08 52 58.44 14.66 XMM-NEWTON
57 3XMM J195051.4+085510 19 50 51.43 +08 55 10.92 14.66 XMM-NEWTON
3XMM J195051.4+085510 19 50 51.46 +08 55 10.56 14.67 XMM-NEWTON
3XMM J195051.8+085442 19 50 51.84 +08 54 42.48 15.04 XMM-NEWTON
58 3XMM J195048.8+085327 19 50 48.84 +08 53 27.96 15.34 XMM-NEWTON
3XMM J195048.8+085327 19 50 48.84 +08 53 27.24 15.35 XMM-NEWTON
59 3XMM J195049.0+085250 19 50 49.80 +08 52 50.88 15.82 XMM-NEWTON
3XMM J195049.0+085250 19 50 49.13 +08 52 50.16 15.84 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J195025+090448 19 50 25.90 +09 04 48.00 5.15 NVSS
TGSSADR J195025.9+090448 19 50 25.90 +09 04 49.08 5.16 GMRTAS150M
2 NVSS J194943+090525 19 49 43.61 +09 05 25.08 5.42 NVSS
3 NVSS J195004+091007 19 50 04.30 +09 10 06.96 5.77 NVSS
4 NVSS J194939+090020 19 49 39.10 +09 00 20.16 7.57 NVSS
TGSSADR J194938.9+090020 19 49 39.00 +09 00 20.88 7.60 GMRTAS150M
5 NVSS J194934+090654 19 49 34.30 +09 06 55.08 8.03 NVSS
6 NVSS J195015+091208 19 50 15.19 +09 12 09.00 8.17 NVSS
7 NVSS J195036+090824 19 50 36.10 +09 08 24.00 8.65 NVSS
8 NVSS J195017+085528 19 50 17.59 +08 55 27.84 9.40 NVSS
9 NVSS J195037+091232 19 50 37.30 +09 12 33.12 11.41 NVSS
10 NVSS J195032+085323 19 50 32.50 +08 53 22.92 12.89 NVSS
11 NVSS J195050+091127 19 50 50.81 +09 11 26.88 13.33 NVSS

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