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 J2317.7+2839

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J2317.7+2839 Swift-XRT detections in the field for 4FGL J2317.7+2839

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 23 17 34.91 +28 47 49.59 4.54 (4.3 ± 0.7) x 10-3 54 6.537 6.182
2 23 17 39.87 +28 39 53.35 4.88 (3.0 ± 0.6) x 10-3 42 4.818 4.729
3 23 17 13.93 +28 49 15.59 5.89 (1.4 ± 0.4) x 10-3 17 3.310 3.495

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 23 17 59.10 +28 40 57.78 5.28 (1.1 ± 0.4) x 10-3 19 2.742 2.803
2 23 18 20.50 +28 42 24.51 5.70 (1.2 ± 0.4) x 10-3 16 2.694 2.719
3 23 17 37.59 +28 33 23.89 5.40 (10 ± 4) x 10-4 21 2.989 2.541
4 23 17 30.23 +28 30 11.50 5.17 (1.1 ± 0.5) x 10-3 15 2.647 2.274
5 23 17 03.25 +28 44 20.12 5.40 (7 ± 3) x 10-4 16 2.395 2.100

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J2317.7+2839 Swift-XRT image with known radio, optical and UV sources for 4FGL J2317.7+2839


No known X-ray or gamma ray sources found.

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J231740+283952 23 17 40.51 +28 39 51.84 1.05 NVSS
2 PGC 91791 23 17 48.10 +28 40 26.04 1.12 PGC2003
QORG J231746.5+284526 23 17 46.51 +28 45 25.92 5.91 QORGCAT
3 NVSS J231746+284529 23 17 46.80 +28 45 29.16 5.97 NVSS
4 NVSS J231810+283659 23 18 10.20 +28 36 59.04 6.08 NVSS
QORG J231810.6+283700 23 18 10.61 +28 37 00.12 6.15 QORGCAT
5 SAO 91145 23 17 16.94 +28 36 29.52 6.88 SAO
BD+27 4526 23 17 16.87 +28 36 28.80 6.90 ACRS
PPM 115326 23 17 16.82 +28 36 29.16 6.90 PPM
6 PGC 70935 23 17 17.71 +28 35 49.92 7.05 PGC2003
7 NVSS J231746+283141 23 17 46.80 +28 31 41.16 7.86 NVSS
GB6 J2318+2842 23 18 19.70 +28 42 24.12 8.12 GB6
QORG J231820.0+284237 23 18 19.99 +28 42 37.08 8.26 QORGCAT
8 NVSS J231820+284232 23 18 20.40 +28 42 32.04 8.32 NVSS
TGSSADR J231820.4+284233 23 18 20.50 +28 42 33.12 8.33 GMRTAS150M
2315+2826 23 18 20.71 +28 42 29.16 8.36 NORTH6CM
TXS 2315+284 23 18 20.59 +28 42 33.12 8.37 TEXAS
VLSSr J231820.6+284232 23 18 20.71 +28 42 32.04 8.37 VLSSR
9 MCG+05-54-058 23 17 14.88 +28 34 22.80 8.39 MCG
B2.2 2315+28C 23 18 20.30 +28 42 48.96 8.40 DIXON
10 MITG J2318+2841 23 18 24.50 +28 41 39.12 8.91 MITGB6CM
TGSSADR J231732.2+283053 23 17 32.30 +28 30 52.92 9.09 GMRTAS150M
11 NVSS J231732+283051 23 17 32.11 +28 30 51.12 9.14 NVSS
12 NVSS J231829+284109 23 18 29.71 +28 41 09.96 9.92 NVSS
VLSSr J231803.1+282953 23 18 03.10 +28 29 53.88 10.42 VLSSR
13 NVSS J231802+282948 23 18 02.50 +28 29 48.84 10.45 NVSS
TGSSADR J231802.4+282948 23 18 02.50 +28 29 48.84 10.45 GMRTAS150M
GB6 J2318+2829 23 18 02.40 +28 29 40.92 10.56 GB6
14 2315+2812 23 18 04.61 +28 29 02.04 11.34 NORTH6CM
15 NVSS J231650+284112 23 16 50.90 +28 41 12.12 12.00 NVSS
TGSSADR J231650.3+284110 23 16 50.40 +28 41 09.96 12.10 GMRTAS150M
16 NVSS J231812+282804 23 18 12.70 +28 28 04.08 12.98 NVSS
17 NVSS J231819+282854 23 18 19.99 +28 28 54.84 13.10 NVSS
TGSSADR J231820.1+282853 23 18 20.21 +28 28 54.12 13.14 GMRTAS150M
18 PGC 3089269 23 16 51.00 +28 45 34.92 13.31 PGC2003
TGSSADR J231820.9+282757 23 18 20.90 +28 27 56.88 14.01 GMRTAS150M
19 NVSS J231706+285041 23 17 06.41 +28 50 40.92 14.01 NVSS
20 NVSS J231820+282755 23 18 21.00 +28 27 55.08 14.04 NVSS
21 NVSS J231651+283102 23 16 51.10 +28 31 01.92 14.57 NVSS

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