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.

4FGL J1943.9+2841

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1943.9+2841 Swift-XRT detections in the field for 4FGL J1943.9+2841

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 19 44 01.71 +28 44 49.22 3.95 (2.6 ± 0.2) x 10-2 168 12.080 12.000
2 19 44 28.86 +28 47 48.30 5.40 (2.1 ± 0.6) x 10-3 19 3.116 3.213
3 19 44 48.00 +28 48 56.84 5.64 (1.9 ± 0.6) x 10-3 16 3.123 3.172

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 43 43.09 +28 41 38.09 6.21 (1.7 ± 0.6) x 10-3 15 2.824 2.948
2 19 43 55.46 +28 35 27.06 5.59 (1.7 ± 0.6) x 10-3 19 2.858 2.770
3 19 43 42.27 +28 37 29.25 5.17 (1.7 ± 0.7) x 10-3 24 2.858 2.457
4 19 43 34.99 +28 37 11.41 5.53 (1.3 ± 0.6) x 10-3 21 2.518 2.397
5 19 43 52.01 +28 47 07.86 5.49 (1.3 ± 0.6) x 10-3 18 2.415 2.329

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1943.9+2841 Swift-XRT image with known radio, optical and UV sources for 4FGL J1943.9+2841

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 XMMSL2 J194402.0+284451 19 44 01.92 +28 44 51.00 3.43 XMM-NEWTON
1RXS J194401.5+284456 19 44 01.51 +28 44 56.04 3.47 ROSAT
1RXS J194401.5+284456 19 44 01.51 +28 44 56.04 3.47 ROSAT
2RXS J194401.4+284456 19 44 01.49 +28 44 56.40 3.47 ROSAT
2 1RXS J194358.5+284741 19 43 58.51 +28 47 41.64 5.99 ROSAT
3 2RXS J194434.7+284028 19 44 34.78 +28 40 28.92 8.75 ROSAT
1RXS J194434.9+284029 19 44 34.90 +28 40 29.64 8.78 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J194358+284141 19 43 58.30 +28 41 40.92 0.66 NVSS
CGPS J194358+284134 19 43 58.51 +28 41 35.16 0.72 CGPSNGPCAT
2 NVSS J194404+284341 19 44 04.51 +28 43 41.16 2.80 NVSS
3 HD 332583 19 43 48.91 +28 37 58.80 4.01 HDEC
4 NVSS J194410+283747 19 44 10.39 +28 37 46.92 5.17 NVSS
CGPS J194410+283746 19 44 10.61 +28 37 46.92 5.20 CGPSNGPCAT
5 NN 19 43 58.10 +28 35 56.40 5.84 ACRS
PPM 109606 19 43 58.10 +28 35 54.96 5.86 PPM
HD 332582 19 43 58.10 +28 35 54.96 5.86 HDEC
6 QORG J194358.4+284740 19 43 58.39 +28 47 39.84 5.96 QORGCAT
7 BD+28 3450 19 43 31.75 +28 38 34.44 6.06 ACRS
HD 332584 19 43 31.73 +28 38 34.44 6.06 HDEC
PPM 109591 19 43 31.70 +28 38 34.44 6.06 PPM
8 HD 332581 19 44 22.32 +28 39 54.36 6.21 HDEC
9 HD 332585 19 43 27.02 +28 39 08.28 6.72 HDEC
CGPS J194409+284835 19 44 09.31 +28 48 36.00 7.51 CGPSNGPCAT
10 NVSS J194408+284847 19 44 08.90 +28 48 47.16 7.65 NVSS
11 PGCC G64.32+2.34 19 44 27.31 +28 47 51.00 9.30 PLANCKGCC
12 HD 332587 19 43 51.82 +28 32 13.92 9.54 HDEC
PPM 109598 19 43 51.82 +28 32 13.92 9.54 PPM
NN 19 43 51.79 +28 32 13.92 9.54 ACRS
13 NVSS J194422+283407 19 44 22.39 +28 34 06.96 9.67 NVSS
14 NVSS J194345+283217 19 43 45.29 +28 32 17.16 9.71 NVSS
15 HD 332580 19 44 39.36 +28 40 19.92 9.77 HDEC
CGPS J194310+284123 19 43 10.01 +28 41 22.92 9.93 CGPSNGPCAT
16 NVSS J194309+284127 19 43 09.89 +28 41 26.88 9.95 NVSS
17 HD 332568 19 44 15.62 +28 51 57.60 11.15 HDEC
18 FV Cyg 19 43 03.22 +28 42 13.68 11.43 GCVS
19 HD 332586 19 43 32.09 +28 31 30.72 11.43 HDEC
20 V968 Cyg 19 44 34.03 +28 49 35.40 11.57 GCVS
21 NVSS J194324+283217 19 43 24.31 +28 32 17.16 11.64 NVSS
22 WDS J19448+2840 19 44 48.00 +28 40 00.12 11.70 WDS
23 GB6 J1944+2834 19 44 38.40 +28 34 24.96 11.97 GB6
1942+2827 19 44 39.50 +28 34 33.96 12.08 NORTH6CM
WSRTGP 1942+2827 19 44 40.01 +28 34 32.88 12.17 WSRTGP
24 NVSS J194440+283439 19 44 40.51 +28 34 40.08 12.18 NVSS
CGPS J194440+283438 19 44 40.51 +28 34 39.00 12.20 CGPSNGPCAT
TGSSADR J194440.5+283439 19 44 40.61 +28 34 39.00 12.21 GMRTAS150M
VLSSr J194441.1+283449 19 44 41.11 +28 34 49.08 12.21 VLSSR
25 HD 332569 19 44 39.72 +28 49 27.12 12.42 HDEC
TGSSADR J194448.8+284841 19 44 48.79 +28 48 41.04 13.64 GMRTAS150M
26 NVSS J194448+284844 19 44 48.79 +28 48 45.00 13.66 NVSS
QORG J194447.5+284918 19 44 47.50 +28 49 18.12 13.72 QORGCAT
27 CGPS J194448+284916 19 44 48.10 +28 49 17.04 13.82 CGPSNGPCAT
TGSSADR J194447.0+284949 19 44 47.11 +28 49 50.16 13.94 GMRTAS150M
28 NVSS J194447+284954 19 44 47.30 +28 49 54.12 14.03 NVSS

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