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 J2316.8-2518

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J2316.8-2518 Swift-XRT detections in the field for 4FGL J2316.8-2518

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 23 16 42.04 -25 20 47.01 5.89 (5.6 ± 1.4) x 10-3 22 3.896 3.967

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 05.44 -25 11 14.37 6.78 (3.0 ± 1.1) x 10-3 10 2.877 2.659

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J2316.8-2518 Swift-XRT image with known radio, optical and UV sources for 4FGL J2316.8-2518

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J231609.3-252707 23 16 09.31 -25 27 07.56 12.91 ROSAT
2RXS J231609.3-252707 23 16 09.31 -25 27 07.56 12.91 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 PGC 780217 23 16 45.70 -25 19 33.96 1.81 PGC2003
2 PGC 780092 23 16 59.90 -25 20 16.08 2.20 PGC2003
3 NVSS J231639-251501 23 16 39.10 -25 15 02.16 4.85 NVSS
4 NVSS J231656-251258 23 16 55.99 -25 12 57.96 5.83 NVSS
TGSSADR J231656.2-251252 23 16 56.30 -25 12 51.84 5.94 GMRTAS150M
5 PGC 779237 23 16 57.91 -25 24 59.04 6.33 PGC2003
6 WISH B2314.2-2528 23 16 56.59 -25 12 24.12 6.42 WISH
MWACS J2316.9-2512 23 16 56.59 -25 12 23.04 6.42 MWACS
QORG J231657.0-251220 23 16 57.00 -25 12 20.16 6.49 QORGCAT
GLEAM J231656-251218 23 16 56.81 -25 12 19.08 6.50 GLEAMEGCAT
7 PMN J2316-2511 23 16 51.41 -25 11 51.00 6.91 PMN
8 NVSS J231657-251145 23 16 57.31 -25 11 45.96 7.06 NVSS
TGSSADR J231657.4-251145 23 16 57.50 -25 11 45.96 7.07 GMRTAS150M
9 SPASS J231702-251150 23 17 02.21 -25 11 51.00 7.23 SPASS2P3GH
GLEAM J231638-251047 23 16 38.50 -25 10 46.92 8.60 GLEAMEGCAT
QORG J231638.0-251043 23 16 37.99 -25 10 42.96 8.71 QORGCAT
10 NVSS J231637-251043 23 16 37.90 -25 10 42.96 8.72 NVSS
GLEAM J231731-251944 23 17 31.70 -25 19 45.12 8.84 GLEAMEGCAT
QORG J231731.6-252004 23 17 31.61 -25 20 03.84 8.86 QORGCAT
PGC 780119 23 17 31.61 -25 20 03.84 8.86 PGC2003
11 NVSS J231731-252000 23 17 31.80 -25 19 59.88 8.89 NVSS
12 NVSS J231713-252623 23 17 13.90 -25 26 24.00 9.00 NVSS
13 NVSS J231620-251327 23 16 20.50 -25 13 27.84 9.03 NVSS
14 PPM 274775 23 16 13.44 -25 21 36.36 9.35 PPM
CD-2616557 23 16 13.42 -25 21 36.36 9.35 ACRS
SAO 191775 23 16 13.34 -25 21 36.36 9.37 SAO
15 PGC 779954 23 17 35.59 -25 20 57.84 9.91 PGC2003
WISH B2314.8-2530 23 17 31.01 -25 13 41.16 10.01 WISH
16 NVSS J231621-252553 23 16 21.00 -25 25 53.04 10.12 NVSS
17 NVSS J231731-251313 23 17 31.20 -25 13 13.08 10.28 NVSS
QORG J231731.2-251313 23 17 31.20 -25 13 13.08 10.29 QORGCAT
18 NVSS J231738-252124 23 17 38.21 -25 21 24.84 10.58 NVSS
19 PPM 274779 23 16 24.22 -25 28 09.84 11.42 PPM
CD-2616558 23 16 24.19 -25 28 09.84 11.42 ACRS
SAO 191777 23 16 24.07 -25 28 10.56 11.44 SAO
20 878- 1 23 17 43.70 -25 19 42.24 11.53 NLTT
21 PGC 781873 23 17 28.61 -25 10 28.92 11.57 PGC2003
22 PMN J2316-2527 23 16 12.79 -25 27 11.16 12.36 PMN
WISH B2314.7-2525 23 17 26.40 -25 08 44.16 12.58 WISH
23 NVSS J231726-250824 23 17 26.50 -25 08 24.00 12.85 NVSS
GLEAM J231726-250826 23 17 26.81 -25 08 26.88 12.86 GLEAMEGCAT
TGSSADR J231726.4-250821 23 17 26.50 -25 08 21.84 12.88 GMRTAS150M
TGSSADR J231608.9-252703 23 16 09.00 -25 27 02.88 12.92 GMRTAS150M
24 NVSS J231608-252703 23 16 08.81 -25 27 02.88 12.95 NVSS
QORG J231608.6-252702 23 16 08.59 -25 27 02.16 12.98 QORGCAT
GLEAM J231609-252712 23 16 09.10 -25 27 11.88 13.00 GLEAMEGCAT

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