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.

1FGL J0523.5-2529

Field

Detected Excesses
Swift-XRT image of the field for 1FGL J0523.5-2529 Swift-XRT detections in the field for 1FGL J0523.5-2529

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 05 23 16.87 -25 27 36.55 3.58 (1.20 ± 0.04) x 10-2 1004 24.590 27.540
2 05 22 33.58 -25 20 06.14 3.68 (2.1 ± 0.2) x 10-3 212 11.480 10.270
3 05 23 39.43 -25 33 33.14 3.71 (2.0 ± 0.2) x 10-3 267 10.600 9.819
4 05 23 13.92 -25 23 19.33 3.76 (1.7 ± 0.2) x 10-3 181 8.669 8.789
5 05 23 37.63 -25 31 41.78 3.72 (1.7 ± 0.2) x 10-3 280 9.020 8.727
6 05 23 23.91 -25 27 29.73 3.75 (1.4 ± 0.2) x 10-3 228 7.639 7.924
7 05 23 08.60 -25 17 02.93 3.76 (1.2 ± 0.2) x 10-3 154 8.254 7.517
8 05 23 44.09 -25 27 19.35 3.77 (10 ± 2) x 10-4 188 6.400 6.488
9 05 23 43.98 -25 24 22.53 3.81 (9.3 ± 1.4) x 10-4 161 6.444 6.443
10 05 23 24.46 -25 30 52.35 3.78 (1.0 ± 0.2) x 10-3 216 5.335 6.086
11 05 23 18.95 -25 15 57.77 3.88 (8.3 ± 1.4) x 10-4 99 6.336 6.086
12 05 22 58.36 -25 22 00.16 3.75 (8.7 ± 1.4) x 10-4 139 5.778 6.068
13 05 23 15.94 -25 35 07.90 3.73 (10 ± 2) x 10-4 184 7.057 6.042
14 05 23 34.70 -25 17 19.33 3.93 (8.1 ± 1.4) x 10-4 79 6.132 5.963
15 05 22 59.97 -25 18 04.38 3.77 (8.1 ± 1.4) x 10-4 108 6.018 5.946
16 05 23 08.39 -25 23 55.26 3.80 (7.8 ± 1.4) x 10-4 143 5.081 5.640
17 05 22 32.84 -25 34 52.91 3.73 (8 ± 2) x 10-4 144 6.662 5.598
18 05 22 49.14 -25 23 08.16 3.75 (7.1 ± 1.4) x 10-4 109 4.351 5.036
19 05 23 53.56 -25 26 08.26 3.88 (6.0 ± 1.2) x 10-4 114 5.258 4.817
20 05 23 18.60 -25 33 04.18 3.75 (7 ± 2) x 10-4 198 4.603 4.549
21 05 23 06.35 -25 31 22.68 3.80 (5.8 ± 1.3) x 10-4 136 4.300 4.543
22 05 23 29.91 -25 31 43.14 3.79 (6.3 ± 1.4) x 10-4 201 4.758 4.474
23 05 22 41.87 -25 30 21.62 3.71 (6.0 ± 1.4) x 10-4 156 4.962 4.436
24 05 23 11.02 -25 35 13.81 3.74 (6.4 ± 1.4) x 10-4 143 4.686 4.406
25 05 23 20.58 -25 36 33.82 3.79 (5.7 ± 1.3) x 10-4 122 4.117 4.255
26 05 22 42.73 -25 31 33.77 3.70 (5.4 ± 1.3) x 10-4 135 4.122 4.114
27 05 23 05.10 -25 33 28.70 3.74 (5.2 ± 1.3) x 10-4 156 4.093 3.921
28 05 22 38.16 -25 30 37.21 3.70 (5.2 ± 1.3) x 10-4 118 4.303 3.906
29 05 22 40.78 -25 35 41.99 3.78 (4.5 ± 1.2) x 10-4 92 4.048 3.877
30 05 23 10.84 -25 29 30.03 3.77 (5.2 ± 1.3) x 10-4 173 4.423 3.877
31 05 23 40.91 -25 30 22.40 3.79 (5.4 ± 1.4) x 10-4 194 4.564 3.845
32 05 23 13.99 -25 31 50.96 3.78 (4.8 ± 1.3) x 10-4 166 3.455 3.736
33 05 23 13.17 -25 36 12.18 3.75 (5.0 ± 1.4) x 10-4 131 4.031 3.669
34 05 22 51.37 -25 16 05.71 3.91 (3.5 ± 1.0) x 10-4 56 3.457 3.538
35 05 22 57.73 -25 35 35.70 3.76 (4.3 ± 1.2) x 10-4 104 3.080 3.537
36 05 23 34.35 -25 19 05.09 3.81 (3.8 ± 1.1) x 10-4 95 5.151 3.454
37 05 22 51.07 -25 28 06.89 3.78 (4.0 ± 1.2) x 10-4 125 3.134 3.451
38 05 22 50.23 -25 31 37.00 3.76 (4.1 ± 1.2) x 10-4 123 3.602 3.441
39 05 23 08.82 -25 37 15.62 3.78 (4.1 ± 1.2) x 10-4 111 3.162 3.434
40 05 23 45.63 -25 34 13.12 3.88 (3.7 ± 1.1) x 10-4 115 3.690 3.289

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 44.09 -25 27 19.35 3.77 (4.9 ± 1.3) x 10-4 188 3.823 3.834
2 05 23 08.59 -25 17 02.97 3.76 (4.4 ± 1.3) x 10-4 151 4.931 3.319
3 05 23 31.09 -25 19 37.52 3.79 (3.2 ± 1.1) x 10-4 93 3.419 2.998
4 05 23 39.43 -25 33 33.14 3.71 (3.9 ± 1.4) x 10-4 279 3.204 2.790
5 05 23 39.40 -25 33 33.13 3.71 (4 ± 2) x 10-4 284 4.659 2.761
6 05 22 46.43 -25 17 55.65 3.80 (2.8 ± 1.1) x 10-4 77 3.117 2.624
7 05 22 40.87 -25 22 19.89 3.72 (2.6 ± 1.1) x 10-4 113 3.162 2.294

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 1FGL J0523.5-2529 Swift-XRT image with known radio, optical and UV sources for 1FGL J0523.5-2529

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 4.24 SWIFT
2 1WGA J0523.2-2527 05 23 12.91 -25 27 24.48 5.19 ROSAT
3 1RXS J052328.4-253649 05 23 28.39 -25 36 49.68 7.02 ROSAT
4 1RXS J052248.6-253117 05 22 48.60 -25 31 17.40 10.14 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J052350-252940 05 23 51.00 -25 29 39.84 4.04 NVSS
2 GLEAM J052349-253118 05 23 49.90 -25 31 18.84 4.06 GLEAMEGCAT
3 NVSS J052333-253411 05 23 33.10 -25 34 12.00 4.31 NVSS
WISH B0521.8-2530 05 23 51.50 -25 28 14.16 4.47 WISH
4 NVSS J052351-253150 05 23 51.79 -25 31 50.16 4.64 NVSS
TGSSADR J052352.0-253149 05 23 52.10 -25 31 49.08 4.70 GMRTAS150M
GLEAM J052351-252745 05 23 51.91 -25 27 46.08 4.73 GLEAMEGCAT
5 NVSS J052352-252748 05 23 52.01 -25 27 48.96 4.75 NVSS
TGSSADR J052352.2-252745 05 23 52.30 -25 27 45.00 4.83 GMRTAS150M
6 NVSS J052350-253258 05 23 50.11 -25 32 58.92 4.94 NVSS
7 [SPT2015] ATCA J0523-2531 05 23 12.91 -25 31 54.84 4.99 FER2FUSRID
[PME2013] J0523-2531 05 23 12.79 -25 31 54.84 5.01 AT2FGLUS
8 TGSSADR J052318.7-252441 05 23 18.70 -25 24 41.04 6.13 GMRTAS150M
9 NVSS J052307-252639 05 23 07.30 -25 26 39.12 6.65 NVSS
GLEAM J052306-252616 05 23 06.50 -25 26 16.08 7.00 GLEAMEGCAT
10 NVSS J052422-252854 05 24 22.70 -25 28 54.12 11.24 NVSS
11 NVSS J052420-253639 05 24 19.99 -25 36 38.88 12.57 NVSS

Penn State University Goddard Space Flight Center Swift