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 J2323.9+2519

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J2323.9+2519 Swift-XRT detections in the field for 4FGL J2323.9+2519

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 23 24 41.93 +25 17 54.24 3.86 (1.01 ± 0.08) x 10-1 205 14.670 13.300
2 23 23 41.43 +25 17 59.20 6.31 (4.7 ± 1.3) x 10-3 18 3.371 3.550

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J2323.9+2519 Swift-XRT image with known radio, optical and UV sources for 4FGL J2323.9+2519

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J232401.9+252020 23 24 01.99 +25 20 20.40 1.69 ROSAT
2RXS J232401.9+252020 23 24 01.99 +25 20 20.40 1.69 ROSAT
2 2RXS J232340.7+251827 23 23 40.75 +25 18 27.36 3.49 ROSAT
2RXS J232340.7+251827 23 23 40.75 +25 18 27.36 3.49 ROSAT
1RXS J232340.3+251825 23 23 40.30 +25 18 24.84 3.60 ROSAT
3 1RXS J232438.7+253126 23 24 38.71 +25 31 26.40 15.20 ROSAT
2RXS J232438.5+253128 23 24 38.57 +25 31 28.56 15.20 ROSAT
2RXS J232438.5+253128 23 24 38.57 +25 31 28.56 15.20 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J232358+251948 23 23 58.80 +25 19 48.00 0.94 NVSS
QORG J232359.2+251942 23 23 59.21 +25 19 41.88 1.03 QORGCAT
2 PPM 115433 23 23 41.30 +25 18 01.44 3.59 PPM
BD+24 4764 23 23 41.30 +25 18 01.08 3.59 ACRS
SAO 91228 23 23 41.26 +25 18 01.80 3.59 SAO
3 PGC 1733315 23 23 33.91 +25 20 43.08 4.78 PGC2003
4 PPM 115437 23 23 52.44 +25 14 58.56 4.98 PPM
BD+24 4765 23 23 52.42 +25 14 58.56 4.99 ACRS
SAO 91231 23 23 52.42 +25 14 58.56 4.99 SAO
5 NVSS J232419+251722 23 24 19.61 +25 17 21.84 6.17 NVSS
TGSSADR J232419.6+251722 23 24 19.70 +25 17 22.92 6.19 GMRTAS150M
6 NVSS J232425+252303 23 24 25.20 +25 23 03.84 7.56 NVSS
QORG J232425.4+252302 23 24 25.39 +25 23 02.04 7.59 QORGCAT
Unknown 23 24 25.80 +25 23 07.08 7.71 RC3
[HVG99b] 23219+2507 23 24 26.04 +25 23 03.12 7.73 CFA2S
23219+2507 23 24 26.04 +25 23 03.12 7.73 ZCAT
PGC 71351 23 24 25.99 +25 23 07.08 7.75 PGC2003
UZC J232426.0+252307 23 24 25.99 +25 23 07.08 7.75 UZC
7 PGC 1732668 23 24 29.40 +25 19 36.12 7.84 PGC2003
8 NVSS J232355+252756 23 23 55.20 +25 27 56.88 8.01 NVSS
9 NVSS J232356+251104 23 23 56.30 +25 11 03.84 8.87 NVSS
Unknown 23 23 37.30 +25 11 38.04 9.19 RC3
UZC J232337.2+251137 23 23 37.20 +25 11 36.96 9.21 UZC
PGC 71307 23 23 37.20 +25 11 36.96 9.21 PGC2003
QORG J232337.3+251131 23 23 37.30 +25 11 30.84 9.29 QORGCAT
10 NVSS J232337+251131 23 23 37.10 +25 11 30.84 9.31 NVSS
11 23211+2455 23 23 34.66 +25 11 28.68 9.60 ZCAT
[HVG99b] 23211+2455 23 23 34.66 +25 11 28.68 9.60 CFA2S
12 NVSS J232328+252734 23 23 28.70 +25 27 34.92 9.65 NVSS
QORG J232339.8+253039 23 23 39.79 +25 30 38.88 11.24 QORGCAT
13 NVSS J232339+253040 23 23 39.70 +25 30 39.96 11.26 NVSS
14 NVSS J232315+252749 23 23 15.29 +25 27 48.96 11.90 NVSS
15 NVSS J232307+252744 23 23 07.61 +25 27 43.92 13.19 NVSS
TGSSADR J232317.8+250852 23 23 17.90 +25 08 52.08 13.85 GMRTAS150M
16 NVSS J232317+250854 23 23 17.59 +25 08 54.96 13.85 NVSS
PGC 1726892 23 23 15.91 +25 08 47.04 14.19 PGC2003
17 TGSSADR J232436.6+253137 23 24 36.70 +25 31 36.84 15.04 GMRTAS150M
18 SAO 91245 23 24 45.29 +25 29 47.40 15.08 SAO
HIP 115583 23 24 45.38 +25 29 47.04 15.09 HIPPARCOS
BD+24 4770 23 24 45.41 +25 29 46.68 15.10 ACRS
PPM 115454 23 24 45.41 +25 29 47.04 15.10 PPM
HD 220582 23 24 45.41 +25 29 47.04 15.10 HIC
220582 23 24 45.50 +25 29 47.76 15.12 WACKERLING
2322+2514 23 24 39.50 +25 31 24.96 15.31 NORTH6CM
2322+2514 23 24 39.50 +25 31 24.96 15.31 NORTH20CM
GB6 J2324+2531 23 24 40.10 +25 31 19.92 15.33 GB6
VLSSr J232438.7+253137 23 24 38.71 +25 31 37.92 15.35 VLSSR
TXS 2322+252 23 24 39.00 +25 31 40.08 15.42 TEXAS
19 NVSS J232439+253140 23 24 39.10 +25 31 40.08 15.43 NVSS
B2.2 2322+25 23 24 38.40 +25 31 53.04 15.50 DIXON
TGSSADR J232440.2+253141 23 24 40.30 +25 31 41.16 15.62 GMRTAS150M
20 MITG J2324+2531 23 24 42.19 +25 31 18.84 15.63 MITGB6CM

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