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 J2043.2+1709

Field

Detected Excesses

Swift-XRT image of the field for 1FGL J2043.2+1709 Swift-XRT detections in the field for 1FGL J2043.2+1709

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 20 43 12.64 +17 10 20.10 4.74 (4.0 ± 0.7) x 10-3 54 5.663 6.068
2 20 42 41.87 +16 59 29.66 4.72 (4.7 ± 0.8) x 10-3 42 5.779 5.746
3 20 43 05.06 +17 05 21.36 4.83 (3.5 ± 0.7) x 10-3 42 5.431 5.345
4 20 43 18.44 +17 07 49.77 4.61 (3.4 ± 0.6) x 10-3 51 5.409 5.319
5 20 43 06.49 +17 02 08.22 5.02 (2.3 ± 0.5) x 10-3 33 4.570 4.610
6 20 43 46.15 +17 00 38.71 5.14 (2.1 ± 0.5) x 10-3 28 4.577 4.318
7 20 43 42.66 +17 09 23.35 5.70 (1.9 ± 0.5) x 10-3 24 3.888 3.892
8 20 43 30.77 +17 11 08.17 5.02 (1.7 ± 0.5) x 10-3 30 3.923 3.787
9 20 43 43.89 +17 17 40.62 5.49 (1.5 ± 0.4) x 10-3 20 3.618 3.611
10 20 43 38.26 +17 17 34.26 5.11 (1.4 ± 0.4) x 10-3 20 3.480 3.351
11 20 42 50.48 +17 10 44.67 5.00 (1.3 ± 0.4) x 10-3 25 3.239 3.137

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 20 42 47.74 +17 11 15.96 4.83 (1.3 ± 0.4) x 10-3 28 3.386 2.999
2 20 43 39.88 +17 11 14.02 5.14 (1.1 ± 0.4) x 10-3 28 3.030 2.940
3 20 43 15.71 +17 05 04.02 5.31 (1.1 ± 0.4) x 10-3 18 2.934 2.881
4 20 43 24.65 +16 52 27.09 7.48 (7 ± 3) x 10-4 8 2.466 2.633
5 20 44 02.27 +16 58 38.69 7.71 (7 ± 3) x 10-4 8 2.312 2.598
6 20 42 54.81 +16 59 56.52 5.14 (9 ± 4) x 10-4 22 2.940 2.508
7 20 43 52.04 +17 01 51.52 6.12 (7 ± 3) x 10-4 13 2.603 2.350

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 1FGL J2043.2+1709 Swift-XRT image with known radio, optical and UV sources for 1FGL J2043.2+1709

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 CXOGSG J204319.0+171055 20 43 19.39 +17 10 55.92 1.19 CHANDRA
2 CXOGSG J204312.7+171022 20 43 12.74 +17 10 22.44 1.21 CHANDRA
3 CXOGSG J204319.1+170830 20 43 19.13 +17 08 30.12 1.39 CHANDRA
4 CXOGSG J204313.0+170840 20 43 13.39 +17 08 40.56 1.53 CHANDRA
5 CXOGSG J204318.6+170759 20 43 18.67 +17 07 59.88 1.86 CHANDRA
6 CXOGSG J204320.8+171129 20 43 20.86 +17 11 29.40 1.88 CHANDRA
7 CXOGSG J204313.3+170715 20 43 13.37 +17 07 15.24 2.73 CHANDRA
8 CXOGSG J204320.8+171233 20 43 20.81 +17 12 33.48 2.86 CHANDRA
9 CXOGSG J204327.4+171207 20 43 27.48 +17 12 07.56 3.36 CHANDRA
10 CXOGSG J204330.9+171106 20 43 30.89 +17 11 06.36 3.50 CHANDRA
11 CXOGSG J204312.0+171307 20 43 12.41 +17 13 07.68 3.53 CHANDRA
12 CXOGSG J204259.6+171022 20 42 59.64 +17 10 22.80 4.25 CHANDRA
13 CXOGSG J204315.7+170507 20 43 15.72 +17 05 07.80 4.70 CHANDRA
14 CXOGSG J204257.6+170638 20 42 57.60 +17 06 38.88 5.67 CHANDRA
15 CXOGSG J204341.6+170842 20 43 41.66 +17 08 42.36 5.94 CHANDRA
16 CXOGSG J204342.6+170923 20 43 42.67 +17 09 23.76 6.09 CHANDRA
17 CXOGSG J204251.4+171040 20 42 51.43 +17 10 40.44 6.23 CHANDRA
18 CXOGSG J204324.0+170346 20 43 24.10 +17 03 46.80 6.26 CHANDRA
19 CXOGSG J204339.7+171322 20 43 39.77 +17 13 22.08 6.44 CHANDRA
20 CXOGSG J204335.5+171452 20 43 35.50 +17 14 52.44 6.67 CHANDRA
21 CXOGSG J204319.2+170248 20 43 19.27 +17 02 48.12 7.04 CHANDRA
22 CXOGSG J204347.4+171112 20 43 47.40 +17 11 12.84 7.33 CHANDRA
23 CXOGSG J204347.5+170829 20 43 47.50 +17 08 29.76 7.35 CHANDRA
24 CXOGSG J204247.0+171117 20 42 46.99 +17 11 17.16 7.37 CHANDRA
25 CXOGSG J204350.7+171038 20 43 50.76 +17 10 38.28 8.04 CHANDRA
26 CXOGSG J204310.5+170153 20 43 10.56 +17 01 53.76 8.09 CHANDRA
27 CXOGSG J204320.6+171754 20 43 20.62 +17 17 54.24 8.12 CHANDRA
28 CXOGSG J204306.4+170202 20 43 06.41 +17 02 02.76 8.19 CHANDRA
29 CXOGSG J204315.3+171813 20 43 15.38 +17 18 14.04 8.42 CHANDRA
30 CXOGSG J204241.2+171136 20 42 41.23 +17 11 36.96 8.79 CHANDRA
31 CXOGSG J204338.3+171732 20 43 38.35 +17 17 32.28 9.21 CHANDRA
32 CXOGSG J204320.7+172012 20 43 20.78 +17 20 12.84 10.43 CHANDRA
33 XMMSL2 J204346.2+170040 20 43 46.34 +17 00 39.96 11.50 XMM-NEWTON
XMMSL2 J204346.2+170040 20 43 46.34 +17 00 39.96 11.50 XMM-NEWTON
34 2RXS J204242.0+165942 20 42 42.91 +16 59 42.72 13.15 ROSAT
2RXS J204242.0+165942 20 42 42.91 +16 59 42.72 13.15 ROSAT
1RXS J204242.1+165941 20 42 42.10 +16 59 40.92 13.17 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 PSR J2043+1711 20 43 20.90 +17 11 29.04 1.87 ATNFPULSAR
GLEAM J204331+171254 20 43 31.39 +17 12 54.00 4.58 GLEAMEGCAT
TGSSADR J204331.0+171259 20 43 31.10 +17 13 00.12 4.58 GMRTAS150M
2 NVSS J204331+171301 20 43 31.20 +17 13 01.92 4.63 NVSS
3 NVSS J204300+170353 20 43 00.19 +17 03 52.92 7.21 NVSS
4 NVSS J204248+171550 20 42 48.60 +17 15 50.04 9.12 NVSS
TGSSADR J204248.5+171551 20 42 48.60 +17 15 51.12 9.13 GMRTAS150M
5 OW+170 20 43 59.21 +17 09 54.00 10.03 DIXON
6 MITG J2043+1701 20 43 42.79 +17 01 50.16 10.05 MITGB6CM
7 NVSS J204403+171245 20 44 03.50 +17 12 46.08 11.43 NVSS
MC3 2041+168 20 43 46.01 +17 00 39.96 11.44 DIXON
2041+168 20 43 46.01 +17 00 36.00 11.50 MRC
8 NVSS J204346+170034 20 43 46.20 +17 00 33.84 11.54 NVSS
TGSSADR J204346.1+170033 20 43 46.10 +17 00 33.12 11.55 GMRTAS150M
GLEAM J204346+170032 20 43 46.01 +17 00 32.04 11.55 GLEAMEGCAT
TXS 2041+168 20 43 46.20 +17 00 33.84 11.56 TEXAS
VLSSr J204346.0+170030 20 43 46.10 +17 00 30.96 11.58 VLSSR
MITG J2043+1700 20 43 45.79 +17 00 20.88 11.67 MITGB6CM
GB6 J2043+1700 20 43 45.70 +17 00 16.92 11.71 GB6
2041+1649 20 43 45.89 +17 00 10.08 11.84 NORTH6CM
9 NVSS J204228+170718 20 42 28.10 +17 07 18.84 12.02 NVSS
10 MITG J2043+1658 20 43 52.90 +16 58 50.88 13.89 MITGB6CM
11 NVSS J204227+171732 20 42 27.19 +17 17 31.92 14.22 NVSS

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