2025ApJ...980..185S

Query : 2025ApJ...980..185S

2025ApJ...980..185S - Astrophys. J., 980, 185 (2025/February-3)

Exploring the Key Features of Repeating Fast Radio Bursts with Machine Learning.

SUN W.-P., ZHANG J.-G., LI Y., HOU W.-T., ZHANG F.-W., ZHANG J.-F. and ZHANG X.

Abstract (from CDS):

Fast radio bursts (FRBs) are enigmatic high-energy events with unknown origins, which are observationally divided into two categories, i.e., repeaters and nonrepeaters. However, there are potentially a number of nonrepeaters that may be misclassified, as repeating bursts are missed due to the limited sensitivity and observation periods, thus misleading the investigation of their physical properties. In this work, we propose a repeater identification method based on the t-distributed Stochastic Neighbor Embedding algorithm and apply the classification to the first Canadian Hydrogen Intensity Mapping Experiment Fast Radio Burst (CHIME/FRB) catalog. We find that the spectral morphology parameters, specifically spectral running (r), represent the key features for identifying repeaters from the nonrepeaters. Also, the results suggest that repeaters are more biased toward narrowband emission, whereas nonrepeaters are inclined toward broadband emission. We provide a list of 163 repeater candidates, five of which are confirmed with an updated repeater catalog from CHIME/FRB. Our findings improve our understanding of the various properties underlying repeaters and nonrepeaters, as well as guidelines for future FRB detection and categorization.

Abstract Copyright: © 2025. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Radio transient sources - Radio bursts - Classification systems

Simbad objects: 147

goto Full paper

goto View the references in ADS

Number of rows : 147
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 FRB 20181218A rB 00 20 14.4000 +71 21 00.000           ~ 8 0
2 FRB 20190629A rB 00 25 21.6000 +12 40 12.000           ~ 11 0
3 FRB 20190114A rB 00 35 48.0000 +19 10 12.000           ~ 8 0
4 FRB 20190102A rB 00 37 02.4000 +26 43 12.000           ~ 15 0
5 FRB 20190411C rB 00 37 19.2000 +20 30 00.000           ~ 14 0
6 FRB 20190527A rB 00 49 48.0000 +07 59 24.000           ~ 14 0
7 FRB 20190531E rB 01 00 48.0000 +00 32 24.000           ~ 7 0
8 FRB 20190226C rB 01 09 50.4000 +26 45 36.000           ~ 10 0
9 FRB 20190601B rB 01 11 31.2000 +23 49 12.000           ~ 11 0
10 FRB 20181101A rB 01 25 02.4000 +53 52 48.000           ~ 9 0
11 FRB 20190106A rB 01 28 45.6000 +46 07 12.000           ~ 9 0
12 FRB 20190130A rB 01 42 33.6000 +13 09 36.000           ~ 8 0
13 FRB 20190605D rB 01 46 52.8000 +28 37 12.000           ~ 9 0
14 FRB 20181203A rB 02 14 24.0000 +23 34 12.000           ~ 7 0
15 FRB 20190308B rB 02 34 21.6000 +83 37 12.000           ~ 10 0
16 FRB 20190118B rB 02 38 50.4000 +23 34 12.000           ~ 7 0
17 FRB 20190129A rB 03 00 14.4000 +21 25 12.000           ~ 12 0
18 FRB 20190417C rB 03 02 43.2000 +71 15 36.000           ~ 12 0
19 FRB 20190125A rB 03 02 55.2000 +27 48 36.000           ~ 9 0
20 FRB 20181014A rB 03 04 02.4000 +63 19 48.000           ~ 6 0
21 FRB 20181203B rB 03 09 14.4000 +24 01 12.000           ~ 9 0
22 FRB 20190422A rB 03 14 14.4000 +35 09 00.000           ~ 13 0
23 FRB 20190206B rB 03 19 02.4000 +79 30 00.000           ~ 10 0
24 FRB 20181222E rB 03 22 33.6000 +86 58 12.000           ~ 13 0
25 FRB 20181117C rB 03 32 50.4000 +25 43 48.000           ~ 8 0
26 FRB 20190617B rB 03 45 43.2000 +01 09 36.000           ~ 14 0
27 FRB 20190224A rB 04 02 07.2000 +83 23 24.000           ~ 7 0
28 FRB 20190223A rB 04 18 52.8000 +87 39 00.000           ~ 11 0
29 FRB 20190110A rB 04 19 48.0000 +47 26 24.000           ~ 11 0
30 FRB 20190329A rB 04 22 09.6000 +73 37 48.000           ~ 11 0
31 FRB 20190211A rB 04 28 14.4000 +68 38 24.000           ~ 8 0
32 FRB 20190515D rB 04 28 31.2000 -05 00 36.000           ~ 10 0
33 FRB 20190529A rB 04 32 14.4000 +40 19 12.000           ~ 9 0
34 FRB 20190530A rB 04 34 57.6000 +60 35 24.000           ~ 8 0
35 FRB 20190128C rB 04 39 12.0000 +78 56 24.000           ~ 10 0
36 FRB 20181214A rB 04 40 00.0000 +43 04 12.000           ~ 12 0
37 FRB 20190415C rB 04 59 14.4000 +34 48 00.000           ~ 6 0
38 FRB 20190430A rB 05 10 48.0000 +87 00 36.000           ~ 11 0
39 FRB 20180920A rB 05 15 33.6000 +28 17 24.000           ~ 8 0
40 FRB 20181117B rB 05 24 21.6000 +79 59 24.000           ~ 9 0
41 FRB 20190403G rB 05 26 57.6000 +25 46 48.000           ~ 8 0
42 FRB 20190517C rB 05 50 00.0000 +26 37 12.000           ~ 11 0
43 FRB 20190601C rB 05 54 04.8000 +28 28 12.000           ~ 15 0
44 NAME FRB 180729.J0558+56 rB 05 59 43.2000 +56 30 00.000           ~ 13 0
45 FRB 20180725A rB 06 13 40.8000 +67 04 12.000           ~ 15 0
46 FRB 20190518G rB 06 19 09.6000 +75 31 12.000           ~ 8 0
47 FRB 20190701C rB 06 25 26.4000 +81 37 48.000           ~ 13 0
48 FRB 20181209A rB 06 32 38.4000 +68 41 24.000           ~ 9 0
49 FRB 20190419A rB 06 59 55.2000 +64 52 48.000           ~ 9 0
50 FRB 20190420A rB 07 06 12.0000 +55 57 36.000           ~ 7 0
51 FRB 20180916C rB 07 08 36.0000 +45 04 48.000           ~ 7 0
52 FRB 20190701D rB 07 28 24.0000 +66 42 00.000           ~ 13 0
53 FRB 20190625D rB 07 40 04.8000 +04 52 12.000           ~ 8 0
54 FRB 20190426A rB 07 40 09.6000 +59 07 12.000           ~ 7 0
55 FRB 20181014C rB 07 51 28.8000 +41 35 24.000           ~ 7 0
56 FRB 20190304A rB 08 18 02.4000 +74 36 36.000           ~ 12 0
57 FRB 20190409B rB 08 26 36.0000 +63 28 12.000           ~ 12 0
58 FRB 20181231B rB 08 35 04.8000 +55 59 24.000           ~ 14 0
59 FRB 20181027A rB 08 47 36.0000 -04 14 24.000           ~ 8 0
60 FRB 20190221A rB 08 50 24.0000 +09 54 00.000           ~ 10 0
61 FRB 20190203A rB 08 54 43.2000 +70 49 12.000           ~ 13 0
62 FRB 20190617C rB 08 57 28.8000 +35 42 00.000           ~ 8 0
63 FRB 20181030E rB 09 02 40.8000 +08 53 24.000           ~ 10 0
64 FRB 20190208C rB 09 26 12.0000 +83 33 36.000           ~ 10 0
65 FRB 20181115A rB 09 31 55.2000 +56 24 00.000           ~ 8 0
66 FRB 20180925B rB 09 41 48.0000 +20 59 24.000           ~ 8 0
67 FRB 20181125A rB 09 51 45.6000 +33 55 48.000           ~ 14 0
68 FRB 20190502C rB 10 22 24.0000 +82 58 12.000           ~ 11 0
69 NAME FRB 181030.J1054+73 rB 10 33 24.0000 +73 47 24.000           ~ 79 0
70 FRB 20190204A rB 10 45 19.2000 +61 31 48.000           ~ 10 0
71 FRB 20190519F rB 11 02 31.2000 +77 13 48.000           ~ 8 0
72 FRB 20190519E rB 11 13 07.2000 +41 39 00.000           ~ 10 0
73 FRB 20190605C rB 11 13 16.8000 -05 11 24.000           ~ 12 0
74 FRB 20180923D rB 11 16 19.2000 +48 45 00.000           ~ 8 0
75 FRB 20190428A rB 11 22 55.2000 +23 19 48.000           ~ 9 0
76 FRB 20190130B rB 11 28 26.4000 +16 03 00.000           ~ 12 0
77 FRB 20190416B rB 11 28 45.6000 +35 57 00.000           ~ 7 0
78 FRB 20181223B rB 11 39 33.6000 +21 35 24.000           ~ 10 0
79 FRB 20181214D rB 11 54 16.8000 +46 42 36.000           ~ 6 0
80 FRB 20181022D rB 11 56 43.2000 +36 31 48.000           ~ 7 0
81 FRB 20190614A rB 11 59 09.6000 +88 19 48.000           ~ 9 0
82 FRB 20181219B rB 12 03 09.6000 +71 33 00.000           ~ 6 0
83 FRB 20190228A rB 12 13 55.2000 +22 54 00.000           ~ 11 0
84 FRB 20181213B rB 12 14 04.8000 +53 42 00.000           ~ 9 0
85 FRB 20181222D rB 12 32 48.0000 +56 09 36.000           ~ 8 0
86 FRB 20190308C rB 12 33 26.4000 +44 23 24.000           ~ 13 0
87 FRB 20180920B rB 12 44 21.6000 +63 31 12.000           ~ 11 0
88 FRB 20190131E rB 13 02 36.0000 +80 55 12.000           ~ 11 0
89 FRB 20190627A rB 13 03 33.6000 +00 45 00.000           ~ 9 0
90 NAME FRB 180729.J1316+55 rB 13 17 36.0000 +55 34 48.000           ~ 15 0
91 FRB 20181012B rB 13 45 19.2000 +64 09 00.000           ~ 8 0
92 FRB 20190621C rB 13 46 16.8000 +05 13 48.000           ~ 10 0
93 FRB 20190425B rB 14 00 28.8000 +88 36 00.000           ~ 12 0
94 FRB 20190403E rB 14 40 52.8000 +86 32 24.000           ~ 11 0
95 FRB 20181022E rB 14 44 43.2000 +27 07 48.000           ~ 10 0
96 FRB 20190612B rB 14 48 50.4000 +04 18 36.000           ~ 10 0
97 FRB 20190304C rB 14 52 02.4000 +26 43 12.000           ~ 9 0
98 FRB 20181221A rB 15 22 19.2000 +25 51 36.000           ~ 17 0
99 FRB 20181017B rB 15 51 02.4000 +78 30 00.000           ~ 13 0
100 FRB 20181229B rB 15 53 28.8000 +19 46 48.000           ~ 12 0
101 FRB 20190222C rB 15 56 43.2000 +40 01 48.000           ~ 8 0
102 FRB 20181127A rB 16 15 12.0000 +25 25 48.000           ~ 9 0
103 FRB 20190206A rB 16 19 24.0000 +09 21 36.000           ~ 15 0
104 FRB 20181228B rB 16 41 43.2000 +63 51 00.000           ~ 14 0
105 FRB 20181214F rB 16 50 28.8000 +32 26 24.000           ~ 9 0
106 FRB 20190118A rB 16 53 14.4000 +11 33 00.000           ~ 12 0
107 FRB 20190109B rB 16 53 52.8000 +01 15 00.000           ~ 10 0
108 FRB 20190112A rB 17 11 55.2000 +61 12 00.000           ~ 12 0
109 FRB 20181126A rB 17 28 12.0000 +81 10 12.000           ~ 8 0
110 FRB 20190408A rB 17 28 48.0000 +71 36 00.000           ~ 7 0
111 FRB 20190410A rB 17 33 52.8000 -02 22 12.000           ~ 11 0
112 FRB 20190410B rB 17 43 02.4000 +15 10 12.000           ~ 10 0
113 FRB 20190218B rB 17 54 48.0000 +17 55 48.000           ~ 13 0
114 FRB 20181128C rB 17 55 04.8000 +49 42 36.000           ~ 11 0
115 FRB 20190621D rB 18 02 31.2000 +78 53 24.000           ~ 11 0
116 FRB 20190520A rB 18 14 04.8000 +26 19 12.000           ~ 11 0
117 FRB 20190301D rB 18 34 52.8000 +74 40 48.000           ~ 8 0
118 FRB 20190309A rB 18 35 50.4000 +52 24 36.000           ~ 8 0
119 FRB 20180904A rB 19 06 19.2000 +81 13 12.000           ~ 7 0
120 FRB 20190519J rB 19 44 50.4000 +86 55 48.000           ~ 8 0
121 FRB 20190423B rB 19 54 19.2000 +26 11 24.000           ~ 13 0
122 FRB 20181123A rB 20 03 02.4000 +55 52 12.000           ~ 8 0
123 FRB 20180918A rB 20 05 04.8000 +64 57 36.000           ~ 7 0
124 FRB 20190624B rB 20 18 36.0000 +73 36 36.000           ~ 12 0
125 FRB 20181216A rB 20 25 07.2000 +53 31 48.000           ~ 6 0
126 FRB 20181221B rB 20 25 14.4000 +80 58 48.000           ~ 10 0
127 FRB 20181129B rB 20 30 14.4000 +81 19 12.000           ~ 8 0
128 FRB 20190101B rB 20 31 04.8000 +29 53 24.000           ~ 8 0
129 FRB 20181030C rB 20 39 19.2000 +03 59 24.000           ~ 7 0
130 FRB 20180928A rB 20 51 48.0000 +30 51 00.000           ~ 10 0
131 FRB 20190210E rB 20 54 36.0000 +86 40 12.000           ~ 7 0
132 FRB 20190221C rB 21 04 36.0000 +54 40 12.000           ~ 6 0
133 FRB 20190618A rB 21 25 00.0000 +25 26 24.000           ~ 12 0
134 NAME FRB 180801.J2130+72 rB 21 30 07.2000 +72 43 12.000           ~ 17 0
135 FRB 20180923A rB 21 50 26.4000 +71 55 12.000           ~ 7 0
136 FRB 20190429B rB 21 59 43.2000 +03 57 36.000           ~ 11 0
137 FRB 20190531C rB 22 04 33.6000 +43 00 00.000           ~ 9 0
138 FRB 20190210D rB 22 17 58.0 +52 53 20           ~ 11 0
139 FRB 20190623B rB 22 20 52.8000 +46 07 12.000           ~ 7 0
140 FRB 20190106B rB 22 22 31.2000 +46 07 48.000           ~ 12 0
141 FRB 20190213D rB 22 25 48.0000 +52 42 36.000           ~ 11 0
142 FRB 20190205A rB 22 48 52.8000 +83 22 12.000           ~ 7 0
143 FRB 20190609A rB 23 01 12.0000 +87 56 24.000           ~ 16 0
144 FRB 20181230A rB 23 06 45.6000 +83 22 12.000           ~ 9 0
145 FRB 20180910A rB 23 31 04.8000 +88 12 36.000           ~ 14 0
146 FRB 20190131B rB 23 38 52.8000 +11 42 36.000           ~ 7 0
147 FRB 20181130A rB 23 40 45.6000 +46 29 24.000           ~ 9 0

To bookmark this query, right click on this link: simbad:objects in 2025ApJ...980..185S and select 'bookmark this link' or equivalent in the popup menu