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 J2351.4-2818

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J2351.4-2818 Swift-XRT detections in the field for 4FGL J2351.4-2818

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 23 51 38.32 -28 18 20.84 4.47 (1.3 ± 0.2) x 10-2 67 7.072 6.231
2 23 51 36.87 -28 21 50.78 4.86 (10 ± 2) x 10-3 47 5.909 5.892
3 23 50 51.68 -28 23 06.21 5.76 (3.4 ± 1.0) x 10-3 19 3.725 3.381

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 52 13.69 -28 12 36.88 6.21 (2.6 ± 0.9) x 10-3 13 2.987 2.858
2 23 51 39.73 -28 14 37.16 7.27 (2.1 ± 0.8) x 10-3 10 2.473 2.554
3 23 52 04.32 -28 14 11.26 7.71 (1.9 ± 0.8) x 10-3 8 2.442 2.500

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J2351.4-2818 Swift-XRT image with known radio, optical and UV sources for 4FGL J2351.4-2818

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1WGA J2351.4-2820 23 51 29.81 -28 20 16.44 1.61 ROSAT
2 XMMSL2 J235137.8-281819 23 51 37.87 -28 18 18.72 2.11 XMM-NEWTON
XMMSL2 J235137.8-281819 23 51 37.87 -28 18 18.72 2.11 XMM-NEWTON
3 2RXS J235137.8-281927 23 51 37.87 -28 19 27.12 2.20 ROSAT
2RXS J235137.8-281927 23 51 37.87 -28 19 27.12 2.20 ROSAT
4 1RXS J235139.9-281840 23 51 39.91 -28 18 40.68 2.52 ROSAT
5 2E 2349.0-2834 23 51 40.94 -28 18 10.44 2.80 EINSTEIN
2E 2349.0-2834 23 51 40.97 -28 18 10.80 2.80 EINSTEIN
6 XMMSL2 J235143.9-281751 23 51 43.94 -28 17 50.64 3.51 XMM-NEWTON
XMMSL2 J235143.9-281751 23 51 43.94 -28 17 50.64 3.51 XMM-NEWTON
7 2E 2349.0-2838 23 51 37.94 -28 21 46.44 3.72 EINSTEIN
2E 2349.0-2838 23 51 38.04 -28 21 46.44 3.73 EINSTEIN
8 ABELL4049 23 51 35.30 -28 22 18.48 3.91
9 1RXS J235219.5-281304 23 52 19.51 -28 13 04.08 12.57 ROSAT
10 A4049 23 52 21.07 -28 13 26.40 12.72 EINSTEIN
2RXS J235220.7-281258 23 52 20.76 -28 12 58.32 12.86 ROSAT
2RXS J235220.7-281258 23 52 20.76 -28 12 58.32 12.86 ROSAT
2E 2349.7-2829 23 52 21.53 -28 13 13.44 12.90 EINSTEIN
2E 2349.7-2829 23 52 21.60 -28 13 13.44 12.92 EINSTEIN

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 PGC 742781 23 51 30.19 -28 20 48.84 2.16 PGC2003
2 PGC 85843 23 51 35.59 -28 17 12.12 2.17 PGC2003
3 PGC 742794 23 51 22.39 -28 20 44.16 2.44 PGC2003
4 PGC 101038 23 51 17.21 -28 18 30.96 2.49 PGC2003
5 2QZ J235114-2820 23 51 14.81 -28 20 00.96 3.28 VERONCAT
QORG J235114.7-282002 23 51 14.71 -28 20 02.04 3.31 QORGCAT
6 PGC 743918 23 51 30.41 -28 15 24.12 3.32 PGC2003
PGC 85832 23 51 14.71 -28 20 30.12 3.53 PGC2003
7 NVSS J235113-281723 23 51 13.51 -28 17 22.92 3.54 NVSS
TGSSADR J235113.5-281722 23 51 13.51 -28 17 22.92 3.54 GMRTAS150M
I5362 23 51 36.31 -28 21 48.60 3.56 ZCAT
IC 5362 23 51 36.31 -28 21 48.96 3.57 RC3
ESO 234901-2838.4 23 51 36.24 -28 21 50.40 3.58 ESOUPPSALA
PMN J2351-2821 23 51 36.70 -28 21 48.96 3.61 PMN
QORG J235136.6-282152 23 51 36.60 -28 21 51.84 3.64 QORGCAT
ABELL4049 23 51 35.54 -28 21 59.76 3.65 ABELL
PGC 72648 23 51 36.70 -28 21 52.92 3.67 PGC2003
8 NVSS J235136-282153 23 51 36.70 -28 21 52.92 3.67 NVSS
GLEAM J235136-282156 23 51 36.31 -28 21 56.16 3.67 GLEAMEGCAT
TGSSADR J235136.6-282153 23 51 36.70 -28 21 54.00 3.68 GMRTAS150M
IC 5362 23 51 36.00 -28 22 00.12 3.70 NGC2000
9 PGC 85831 23 51 11.59 -28 18 39.96 3.71 PGC2003
GLEAM J235112-281710 23 51 12.10 -28 17 09.96 3.90 GLEAMEGCAT
10 PGC 742551 23 51 17.90 -28 22 00.84 4.05 PGC2003
11 PGC 85847 23 51 48.00 -28 18 47.16 4.30 PGC2003
PGC 742465 23 51 18.10 -28 22 21.00 4.31 PGC2003
12 MCG-05-56-023 23 51 41.28 -28 22 19.20 4.59 MCG
13 PGC 85829 23 51 08.11 -28 17 42.00 4.59 PGC2003
14 NVSS J235109-281623 23 51 09.19 -28 16 23.16 4.84 NVSS
TGSSADR J235108.9-281621 23 51 09.00 -28 16 21.00 4.89 GMRTAS150M
15 PGC 85848 23 51 50.21 -28 17 39.84 4.89 PGC2003
16 PGC 101036 23 51 06.41 -28 19 41.16 4.96 PGC2003
17 HD 223698 23 51 54.10 -28 19 35.40 5.71 HIC
HIP 117676 23 51 54.24 -28 19 36.48 5.75 HIPPARCOS
PPM 275421 23 51 54.31 -28 19 36.84 5.76 PPM
CD-2918861 23 51 54.31 -28 19 36.84 5.77 ACRS
WDS J23519-2820 23 51 54.00 -28 19 59.88 5.77 WDS
18 PGC 85825 23 51 03.70 -28 21 00.00 5.92 PGC2003
19 PGC 101043 23 51 52.80 -28 15 15.12 6.37 PGC2003
20 PGC 101039 23 51 20.11 -28 25 09.84 6.73 PGC2003
21 PGC 743374 23 50 57.31 -28 17 57.84 6.90 PGC2003
22 QORG J235117.3-282510 23 51 17.30 -28 25 09.84 6.92 QORGCAT
2QZ J235117-2825 23 51 17.30 -28 25 09.84 6.92 VERONCAT
23 PGC 85850 23 51 53.40 -28 22 59.88 6.97 PGC2003
24 QORG J235056.5-282046 23 50 56.50 -28 20 45.96 7.33 QORGCAT
2QZ J235056-2820 23 50 56.50 -28 20 45.96 7.33 VERONCAT
25 PGC 744740 23 51 28.01 -28 11 18.96 7.38 PGC2003
26 PGC 741625 23 51 24.50 -28 26 38.04 7.99 PGC2003
27 PGC 741600 23 51 38.30 -28 26 44.88 8.34 PGC2003
28 QORG J235105.9-282534 23 51 05.90 -28 25 33.96 8.48 QORGCAT
2QZ J235105-2825 23 51 05.90 -28 25 33.96 8.48 VERONCAT
29 TU SCL 23 51 11.04 -28 26 37.68 8.81 WOODEBCAT
30 DENISP_G_J2351052-282609 23 51 05.21 -28 26 08.88 9.04 DENISIGAL
31 QORG J235051.9-282309 23 50 51.89 -28 23 08.88 9.20 QORGCAT
2QZ J235051-2823 23 50 51.89 -28 23 08.88 9.20 VERONCAT
QORG J235151.4-281057 23 51 51.41 -28 10 57.00 9.25 QORGCAT
32 NVSS J235151-281057 23 51 51.50 -28 10 57.00 9.26 NVSS
33 NVSS J235147-281023 23 51 47.50 -28 10 23.16 9.30 NVSS
PGC 85827 23 51 05.30 -28 26 31.92 9.35 PGC2003
GLEAM J235149-281029 23 51 49.61 -28 10 30.00 9.42 GLEAMEGCAT
34 PGC 85835 23 51 25.70 -28 28 50.88 10.17 PGC2003
35 PGC 85854 23 52 01.99 -28 11 34.08 10.27 PGC2003
36 PGC 101031 23 50 42.00 -28 20 03.84 10.32 PGC2003
37 NVSS J235203-282560 23 52 03.70 -28 25 59.88 10.65 NVSS
TGSSADR J235203.9-282557 23 52 03.91 -28 25 58.08 10.66 GMRTAS150M
38 PMN J2352-2825a 23 52 07.51 -28 25 09.84 10.75 PMN
39 PGC 745220 23 51 06.50 -28 09 05.04 10.76 PGC2003
40 PGC 85859 23 52 19.20 -28 17 30.84 11.23 PGC2003
41 PGC 744126 23 52 15.70 -28 14 21.84 11.27 PGC2003
42 PGC 85822 23 50 54.31 -28 09 56.16 11.55 PGC2003
DENISP_G_J2350542-280955 23 50 54.19 -28 09 55.08 11.58 DENISIGAL
43 PGC 85858 23 52 16.10 -28 13 44.04 11.60 PGC2003
44 NVSS J235036-281702 23 50 36.10 -28 17 03.12 11.63 NVSS
45 QORG J235213.6-281236 23 52 13.61 -28 12 36.00 11.66 QORGCAT
2QZ J235213-2812 23 52 13.61 -28 12 34.92 11.67 VERONCAT
46 NVSS J235115-283005 23 51 15.19 -28 30 05.04 11.76 NVSS
TGSSADR J235115.1-283008 23 51 15.19 -28 30 07.92 11.81 GMRTAS150M
47 MCG-05-56-022 23 50 47.28 -28 26 20.40 11.85 MCG
GLEAM J235216-282419 23 52 16.01 -28 24 20.16 11.89 GLEAMEGCAT
GLEAM J235153-280803 23 51 53.11 -28 08 03.84 11.94 GLEAMEGCAT
TGSSADR J235216.3-282418 23 52 16.39 -28 24 19.08 11.94 GMRTAS150M
QORG J235216.4-282420 23 52 16.39 -28 24 20.16 11.96 QORGCAT
48 NVSS J235216-282418 23 52 16.51 -28 24 19.08 11.96 NVSS
49 NVSS J235153-280759 23 51 53.30 -28 07 59.88 12.02 NVSS
QORG J235153.3-280759 23 51 53.30 -28 07 59.16 12.03 QORGCAT
50 PGC 85855 23 52 05.30 -28 09 27.00 12.30 PGC2003
51 PGC 85823 23 50 55.90 -28 28 57.00 12.51 PGC2003
52 PGC 85852 23 51 57.50 -28 29 38.04 12.67 PGC2003
53 PGC 101045 23 52 07.01 -28 28 33.96 13.01 PGC2003
54 A2348-2842 23 50 38.45 -28 26 00.60 13.21 ZCAT
PGC 72593 23 50 38.21 -28 26 08.88 13.33 PGC2003
55 PGC 85821 23 50 35.81 -28 25 59.88 13.70 PGC2003
56 A2349-2844 23 52 17.21 -28 27 18.36 13.75 ZCAT
57 PGC 101122 23 52 16.10 -28 28 14.88 14.18 PGC2003
58 PGC 101030 23 50 40.61 -28 08 07.08 14.94 PGC2003
59 NVSS J235039-282950 23 50 39.00 -28 29 49.92 15.57 NVSS
60 PGC 101048 23 52 18.79 -28 30 01.08 15.83 PGC2003
61 PGC 85819 23 50 35.69 -28 07 42.96 15.99 PGC2003
DENISP_G_J2350357-280742 23 50 35.71 -28 07 41.88 16.00 DENISIGAL

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