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 J2339.4+3008

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J2339.4+3008 Swift-XRT detections in the field for 4FGL J2339.4+3008

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 23 39 13.88 +30 15 42.15 6.12 (4.9 ± 1.4) x 10-3 17 3.506 3.456
2 23 40 04.27 +30 17 41.67 7.09 (3.8 ± 1.2) x 10-3 13 3.191 3.241

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 39 59.60 +30 04 14.65 7.48 (3.1 ± 1.1) x 10-3 9 2.705 2.720

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J2339.4+3008 Swift-XRT image with known radio, optical and UV sources for 4FGL J2339.4+3008

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J234002.6+301806 23 40 02.66 +30 18 06.48 12.71 ROSAT
2RXS J234002.6+301806 23 40 02.66 +30 18 06.48 12.71 ROSAT
1RXS J234002.7+301808 23 40 02.71 +30 18 08.64 12.74 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 MITG J2339+3005 23 39 04.20 +30 05 39.84 5.19 MITGB6CM
VLSSr J233900.6+300606 23 39 00.60 +30 06 06.84 5.66 VLSSR
GB6 J2339+3005 23 39 00.79 +30 05 39.12 5.83 GB6
2 NVSS J233900+300547 23 39 00.41 +30 05 48.12 5.84 NVSS
TGSSADR J233900.4+300547 23 39 00.41 +30 05 47.04 5.84 GMRTAS150M
2336+2949 23 39 00.50 +30 05 45.96 5.84 NORTH6CM
2336+2949 23 39 00.50 +30 05 45.96 5.84 NORTH20CM
CRATES J233900+300539 23 39 00.41 +30 05 47.04 5.84 CRATES
WN 2336.5+2949 23 39 00.41 +30 05 45.96 5.85 WENSS
QORG J233900.3+300546 23 39 00.29 +30 05 45.96 5.87 QORGCAT
3 WDS J23391+3013 23 39 06.00 +30 13 00.12 6.06 WDS
4 PGC 1893266 23 39 55.20 +30 10 32.16 6.96 PGC2003
5 NVSS J233856+301158 23 38 56.50 +30 11 58.92 7.01 NVSS
6 HIP 116696 23 38 53.57 +30 03 34.92 8.27 HIPPARCOS
BD+29 4974 23 38 53.57 +30 03 34.20 8.27 ACRS
HD 222248 23 38 53.57 +30 03 33.84 8.27 HIC
PPM 89006 23 38 53.54 +30 03 34.20 8.28 PPM
SAO 91400 23 38 53.59 +30 03 33.48 8.28 SAO
7 NVSS J234004+300759 23 40 04.51 +30 07 59.88 8.66 NVSS
8 NVSS J233934+301856 23 39 34.39 +30 18 56.88 10.72 NVSS
9 NVSS J233851+301809 23 38 51.91 +30 18 10.08 12.00 NVSS
10 QORG J234004.2+301747 23 40 04.20 +30 17 47.04 12.68 QORGCAT
V378 Peg 23 40 04.30 +30 17 47.04 12.70 RITTERCV
CV J234004.2+301747 23 40 04.30 +30 17 47.40 12.70 CVCAT
PG 2337+300 23 40 04.30 +30 17 47.40 12.70 PG
V378 Peg 23 40 04.32 +30 17 47.76 12.71 GCVS
PGC 3089190 23 40 04.51 +29 58 45.84 12.98 PGC2003
11 NVSS J234004+295844 23 40 04.39 +29 58 45.12 12.99 NVSS
TGSSADR J234004.4+295844 23 40 04.51 +29 58 45.12 12.99 GMRTAS150M
QORG J234004.7+295844 23 40 04.70 +29 58 44.04 13.04 QORGCAT
WN 2337.5+2942 23 40 04.61 +29 58 37.92 13.10 WENSS
12 NVSS J233958+301938 23 39 58.39 +30 19 39.00 13.38 NVSS
13 WDS J23402+2959 23 40 12.00 +29 58 59.88 13.96 WDS
14 PGC 1897175 23 38 30.10 +30 16 17.04 14.13 PGC2003

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