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 J0523.3-2527

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J0523.3-2527 Swift-XRT detections in the field for 4FGL J0523.3-2527

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 05 23 16.90 -25 27 35.61 3.59 (1.24 ± 0.05) x 10-2 991 25.670 27.420
2 05 23 39.76 -25 33 36.66 3.75 (1.9 ± 0.2) x 10-3 201 10.220 9.649
3 05 22 33.51 -25 20 05.04 3.78 (1.7 ± 0.2) x 10-3 166 10.590 9.497
4 05 23 08.76 -25 17 02.88 3.80 (1.4 ± 0.2) x 10-3 149 8.655 8.113
5 05 23 23.96 -25 27 30.26 3.80 (1.6 ± 0.2) x 10-3 222 8.621 8.066
6 05 23 37.57 -25 31 42.12 3.78 (1.4 ± 0.2) x 10-3 195 8.155 8.017
7 05 23 14.03 -25 23 21.23 3.87 (1.3 ± 0.2) x 10-3 147 7.753 7.674
8 05 23 43.88 -25 27 18.67 3.82 (10 ± 2) x 10-4 164 6.542 6.601
9 05 23 16.07 -25 35 07.83 3.83 (10 ± 2) x 10-4 142 7.135 6.597
10 05 23 19.04 -25 15 54.22 3.95 (9.1 ± 1.4) x 10-4 98 6.660 6.518
11 05 22 58.07 -25 21 55.07 3.84 (9 ± 2) x 10-4 133 6.391 6.383
12 05 23 34.44 -25 17 19.51 3.94 (8.7 ± 1.4) x 10-4 94 6.368 6.321
13 05 23 24.13 -25 30 54.31 3.88 (10 ± 2) x 10-4 143 5.607 6.302
14 05 23 43.86 -25 24 20.57 3.86 (8.7 ± 1.4) x 10-4 140 6.391 6.226
15 05 23 08.14 -25 23 56.71 3.96 (7.8 ± 1.4) x 10-4 113 5.611 5.743
16 05 23 53.35 -25 26 09.85 3.87 (8.1 ± 1.4) x 10-4 114 6.049 5.737
17 05 22 59.77 -25 18 00.98 3.87 (7.4 ± 1.3) x 10-4 93 5.864 5.523
18 05 22 32.86 -25 34 56.59 3.96 (6.8 ± 1.3) x 10-4 81 5.580 5.340
19 05 23 29.81 -25 31 36.09 3.88 (8 ± 2) x 10-4 135 5.031 5.308
20 05 23 19.11 -25 33 03.40 3.83 (7.3 ± 1.4) x 10-4 149 4.896 5.223
21 05 22 49.40 -25 23 12.65 3.89 (6.6 ± 1.3) x 10-4 91 4.608 5.084
22 05 23 10.94 -25 29 34.26 3.83 (6.3 ± 1.3) x 10-4 170 4.736 4.653
23 05 23 40.85 -25 30 04.37 3.89 (6.0 ± 1.3) x 10-4 110 4.677 4.652
24 05 23 15.41 -25 20 53.17 3.92 (5.0 ± 1.2) x 10-4 107 4.153 4.251
25 05 23 13.47 -25 31 52.48 3.89 (5.2 ± 1.2) x 10-4 116 3.384 4.247
26 05 22 41.76 -25 30 32.19 3.81 (5.3 ± 1.3) x 10-4 104 3.969 4.123
27 05 22 42.91 -25 31 34.76 3.83 (5.0 ± 1.2) x 10-4 103 4.444 4.058
28 05 23 46.35 -25 34 08.33 3.93 (4.7 ± 1.2) x 10-4 73 4.472 4.035
29 05 23 34.41 -25 19 04.15 3.88 (4.7 ± 1.2) x 10-4 86 5.072 3.930
30 05 23 10.90 -25 35 17.53 3.89 (4.4 ± 1.1) x 10-4 88 4.068 3.928
31 05 23 05.33 -25 33 24.44 3.88 (4.3 ± 1.1) x 10-4 107 3.659 3.830
32 05 23 05.92 -25 31 15.56 3.94 (4.3 ± 1.1) x 10-4 105 3.859 3.797
33 05 23 21.34 -25 36 31.41 3.88 (4.5 ± 1.2) x 10-4 84 4.239 3.797
34 05 22 40.84 -25 35 32.79 4.07 (3.8 ± 1.0) x 10-4 51 3.267 3.683
35 05 22 40.79 -25 22 20.79 3.85 (4.2 ± 1.1) x 10-4 103 4.075 3.633
36 05 22 51.24 -25 28 07.59 3.95 (4.0 ± 1.1) x 10-4 82 2.920 3.532
37 05 22 38.08 -25 30 41.55 3.81 (4.3 ± 1.2) x 10-4 73 3.646 3.508
38 05 22 51.65 -25 16 06.13 4.06 (3.2 ± 0.9) x 10-4 48 3.553 3.434
39 05 23 31.20 -25 19 29.79 3.83 (4.0 ± 1.2) x 10-4 103 4.016 3.368
40 05 22 47.97 -25 35 45.75 3.95 (3.3 ± 1.0) x 10-4 56 3.170 3.234
41 05 24 03.34 -25 33 54.32 4.69 (2.3 ± 0.7) x 10-4 26 3.100 3.165
42 05 23 26.30 -25 17 05.11 4.09 (2.8 ± 0.9) x 10-4 54 3.051 3.086

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 05 23 08.75 -25 17 03.46 3.80 (4.5 ± 1.2) x 10-4 148 4.699 3.639
2 05 23 11.07 -25 29 33.21 3.84 (4.2 ± 1.2) x 10-4 164 2.962 3.490
3 05 23 13.64 -25 35 58.23 3.81 (3.4 ± 1.1) x 10-4 88 3.220 2.994
4 05 22 49.96 -25 31 36.69 3.91 (3.0 ± 1.0) x 10-4 90 3.150 2.910
5 05 23 56.63 -25 22 15.18 4.10 (2.5 ± 0.9) x 10-4 51 2.797 2.848
6 05 23 08.83 -25 37 20.41 3.98 (2.7 ± 0.9) x 10-4 68 3.571 2.835
7 05 23 27.81 -25 18 49.85 3.87 (2.8 ± 1.0) x 10-4 81 3.299 2.710
8 05 22 33.57 -25 30 28.70 3.94 (2.5 ± 0.9) x 10-4 62 3.339 2.655
9 05 22 37.33 -25 29 47.12 3.83 (2.8 ± 1.2) x 10-4 79 3.102 2.393
10 05 22 56.98 -25 35 26.28 3.95 (2.1 ± 0.9) x 10-4 69 2.877 2.335
11 05 23 31.20 -25 19 29.79 3.83 (2.3 ± 1.0) x 10-4 103 3.093 2.324
12 05 23 39.67 -25 33 36.86 3.75 (2.7 ± 1.3) x 10-4 211 3.491 2.070
13 05 22 45.93 -25 17 43.32 3.92 (1.3 ± 0.8) x 10-4 59 2.942 1.560
14 05 23 16.90 -25 27 35.88 3.59 (1 ± 2) x 10-4 983 2.950 0.629

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J0523.3-2527 Swift-XRT image with known radio, optical and UV sources for 4FGL J0523.3-2527

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 SWIFT J052317.1-252737 05 23 17.18 -25 27 37.44 0.58 SWIFT
2 1WGA J0523.2-2527 05 23 12.91 -25 27 24.48 1.57 ROSAT
3 1RXS J052248.6-253117 05 22 48.60 -25 31 17.40 7.83 ROSAT
4 1RXS J052328.4-253649 05 23 28.39 -25 36 49.68 9.25 ROSAT
5 1WGA J0522.5-2520 05 22 32.59 -25 20 12.12 13.06 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 QORG J052313.0-252736 05 23 13.01 -25 27 36.00 1.51 QORGCAT
2 NVSS J052307-252639 05 23 07.30 -25 26 39.12 3.00 NVSS
3 TGSSADR J052318.7-252441 05 23 18.70 -25 24 41.04 3.11 GMRTAS150M
GLEAM J052306-252616 05 23 06.50 -25 26 16.08 3.33 GLEAMEGCAT
4 [SPT2015] ATCA J0523-2531 05 23 12.91 -25 31 54.84 4.40 FER2FUSRID
[PME2013] J0523-2531 05 23 12.79 -25 31 54.84 4.40 AT2FGLUS
5 PPM 248829 05 23 13.90 -25 23 22.20 4.61 PPM
SAO 170376 05 23 13.87 -25 23 22.20 4.61 SAO
CD-25 2406 05 23 13.87 -25 23 22.20 4.61 ACRS
6 NVSS J052333-253411 05 23 33.10 -25 34 12.00 7.09 NVSS
PGC 778299 05 23 50.11 -25 29 45.96 7.15 PGC2003
WISH B0521.8-2530 05 23 51.50 -25 28 14.16 7.20 WISH
GLEAM J052351-252745 05 23 51.91 -25 27 46.08 7.27 GLEAMEGCAT
7 NVSS J052352-252748 05 23 52.01 -25 27 48.96 7.31 NVSS
8 NVSS J052350-252940 05 23 51.00 -25 29 39.84 7.32 NVSS
TGSSADR J052352.2-252745 05 23 52.30 -25 27 45.00 7.37 GMRTAS150M
9 GLEAM J052349-253118 05 23 49.90 -25 31 18.84 7.69 GLEAMEGCAT
10 NVSS J052351-253150 05 23 51.79 -25 31 50.16 8.30 NVSS
TGSSADR J052352.0-253149 05 23 52.10 -25 31 49.08 8.36 GMRTAS150M
11 NVSS J052350-253258 05 23 50.11 -25 32 58.92 8.62 NVSS
QORG J052350.3-253258 05 23 50.30 -25 32 57.84 8.64 QORGCAT
12 QORG J052328.7-253652 05 23 28.70 -25 36 51.84 9.30 QORGCAT
13 PGC 779523 05 22 41.90 -25 23 18.96 9.62 PGC2003
14 NVSS J052333-251709 05 23 33.19 -25 17 09.96 11.06 NVSS
15 PGC 780784 05 23 00.10 -25 16 26.04 12.19 PGC2003
16 SAO 170360 05 22 32.62 -25 35 00.60 12.83 SAO
CD-25 2404 05 22 32.64 -25 35 00.96 12.83 ACRS
HIP 25108 05 22 32.64 -25 35 00.96 12.83 HIPPARCOS
PPM 248812 05 22 32.62 -25 35 00.96 12.83 PPM
HD 35285 05 22 32.62 -25 35 00.96 12.83 HIC
17 PGC 780289 05 22 35.50 -25 19 13.08 13.15 PGC2003

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