2025MNRAS.543.2404R

Query : 2025MNRAS.543.2404R

2025MNRAS.543.2404R - Mon. Not. R. Astron. Soc., 543, 2404-2441 (2025/November-1)

Investigating temporal features in Swift GRB afterglows: a comparative study of UVOT and XRT data.

ROR A.K., PANDEY S.B., OATES S.R., GUPTA R., ARYAN A., CASTRO-TIRADO A.J. and KUMAR S.

Abstract (from CDS):

This study presents a statistical analysis of optical light curves (LCs) of 200 Ultraviolet/Optical Telescope (UVOT)-detected gamma-ray bursts (GRBs) from 2005 to 2018. We have categorized these LCs based on their distinct morphological features, including early flares, bumps, breaks, plateaus, etc. Additionally, to compare features across different wavelengths, we have also included XRT LCs in our sample. The early observation capability of UVOT has allowed us to identify very early flares in 21 GRBs preceding the normal decay or bump, consistent with predictions of external reverse or internal shock. The decay indices of optical LCs following a simple power law (PL) are shallower than corresponding X-ray LCs, indicative of a spectral break between two wavelengths. Not all LCs with PL decay align with the forward shock model and require additional components such as energy injection or a structured jet. Further, plateaus in the optical LCs are primarily consistent with energy injection from the central engine to the external medium. However, in four cases, plateaus followed by steep decay may have an internal origin. The optical luminosity observed during the plateau is tightly correlated with the break time, indicative of a magnetar as their possible central engine. For LCs with early bumps, the peak position, correlations between the parameters, and observed achromaticity allowed us to constrain their origin as the onset of afterglow, off-axis jet, late re-brightening, etc. In conclusion, the ensemble of observed features is explained through diverse physical mechanisms or emissions observed from different outflow locations and, in turn, diversity among possible progenitors.

Abstract Copyright: © The Author(s) 2025. Published by Oxford University Press on behalf of Royal Astronomical Society.

Journal keyword(s): radiation mechanisms: non-thermal - stars: black holes - gamma-ray burst: general - stars: magnetars

Simbad objects: 204

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Number of rows : 204
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 GRB 110420A gB 00 08 39.27 -37 53 11.9           ~ 33 0
2 Fermi bn161214722 gB 00 15 24.34 +07 21 09.3           ~ 27 0
3 GRB 060912A gB 00 21 08.11 +20 58 18.9           ~ 116 1
4 GRB 150910A gB 00 22 40.14 +33 28 22.4           ~ 79 0
5 GRB 090123 gB 00 27 10.50 -23 30 12.6           ~ 32 0
6 GRB 170607A gB 00 29 27.84 +09 14 35.5           ~ 62 0
7 GRB 060708 gB 00 31 13.850 -33 45 32.40 19.07 19.79 17.37     ~ 109 0
8 GRB 180115A gB 00 48 09.31 -15 37 50.5           ~ 28 0
9 SN 2010ma SN* 00 48 55.35 -34 33 59.5           SNIc 190 1
10 Fermi bn120729456 gB 00 52 17.84 +49 56 23.1           ~ 122 0
11 GRB 111225A gB 00 52 37.22 +51 34 19.5           ~ 66 0
12 SN 2011kl SN* 00 57 22.64 -46 48 03.6           SNSLSN 268 1
13 Fermi bn160325291 gB 01 02 36.28 -72 41 48.5           ~ 52 0
14 Fermi bn100814160 gB 01 29 53.61 -17 59 43.6           ~ 219 0
15 GRB 081222 gB 01 30 57.76 -34 05 44.0           ~ 199 0
16 GRB 100901A gB 01 49 03.56 +22 45 30.6           ~ 170 0
17 GRB 100906A gB 01 54 44.19 +55 37 49.8           ~ 233 0
18 Fermi bn091208410 gB 01 57 38.50 +16 52 50.7           ~ 220 0
19 GRB 060908 gB 02 07 18.360 +00 20 31.20 16.99 18.34 16.85     ~ 217 0
20 GRB 091018 gB 02 08 46 -57 33.0           ~ 169 0
21 GRB 070802 gB 02 27 35.91 -55 31 39.1           ~ 168 0
22 GRB 140129A gB 02 31 33.83 -01 35 43.3           ~ 28 0
23 GRB 151029A gB 02 34 06.71 -35 23 07.8           ~ 40 0
24 GRB 071112C gB 02 36 50.89 +28 22 16.9           ~ 164 0
25 GRB 140628A gB 02 42 39.88 -00 23 05.7           ~ 20 0
26 Fermi bn110213220 gB 02 51 51.37 +49 16 21.2           ~ 175 0
27 Fermi bn120212383 gB 02 52 24.07 -18 01 15.1           ~ 33 0
28 Fermi bn100728439 gB 02 56 13.44 +00 16 51.6           ~ 142 0
29 GRB 061007 gB 03 05 19.510 -50 30 02.50 14.28 14.40 12.95     ~ 315 1
30 GRB 140509A gB 03 06 22.79 -62 38 20.9           ~ 31 0
31 GRB 140907A gB 03 12 34.98 +46 36 17.2           ~ 81 0
32 GRB 070318 gB 03 13 56.830 -42 56 46.30 18.27 16.23 15.49     ~ 170 0
33 Fermi bn180630467 gB 03 15 55.37 -87 28 43.5           ~ 13 0
34 Fermi bn130609902 gB 03 35 05.11 -40 10 26.7           ~ 54 0
35 GRB 060223A gB 03 40 49.560 -17 07 48.40     17.90     ~ 98 0
36 GRB 060904B gB 03 52 50.520 -00 43 30.61 18.27 19.14 18.37     ~ 208 0
37 GRB 091029 gB 04 00 40.00 -55 57 12.7           ~ 168 0
38 Fermi bn170113420 gB 04 06 59 -71 56.0           ~ 64 0
39 GRB 121024A gB 04 41 53.31 -12 17 26.1           ~ 143 0
40 Fermi bn141004973 gB 05 06 56.11 +12 49 10.1           ~ 75 0
41 GRB 050712 gB 05 10 48.100 +64 54 47.60 19.09   17.86     ~ 71 0
42 GRB 160131A gB 05 12 40.31 -07 02 59.4           ~ 86 0
43 GRB 120701A gB 05 21 23.38 -58 32 59.0           ~ 23 0
44 GRB 080328A gB 05 21 55.81 +47 30 38.0           ~ 53 0
45 GRB 180329B gB 05 31 36.91 -23 41 27.4           ~ 49 0
46 GRB 110801A gB 05 57 44.87 +80 57 21.1           ~ 90 0
47 SN 2016jca SN* 06 06 51.36 -26 47 29.7           SNIc 140 0
48 GRB 170317A gB 06 12 20 +50 30.0           ~ 30 0
49 GRB 151215A gB 06 14 20.20 +35 30 58.3           ~ 47 0
50 Fermi bn080928628 gB 06 20 16.85 -55 11 59.3           ~ 187 0
51 GRB 090401B gB 06 20 21.11 -08 58 20.2           ~ 58 0
52 GRB 060729 gB 06 21 31.850 -62 22 12.69           ~ 303 0
53 GRB 060510A gB 06 23 27.980 -01 09 46.20 18.19   18.45     ~ 58 0
54 GRB 080205 gB 06 33 00.620 +62 47 31.98           ~ 52 0
55 Fermi bn180314030 gB 06 37 03.66 -24 29 46.5           ~ 46 0
56 GRB 080703A gB 06 47 12.43 -63 13 08.3           ~ 33 0
57 GRB 140430A gB 06 51 44.58 +23 01 25.5           ~ 81 0
58 GRB 140215A gB 06 56 35.83 +41 47 11.8           ~ 38 0
59 GRB 070411 gB 07 09 19.930 +01 03 52.60     17.94     ~ 138 0
60 GRB 080303A gB 07 28 14.18 -70 14 03.2           ~ 39 0
61 GRB 060804 gB 07 28 49.360 -27 12 56.71 18.74 18.94 17.32     ~ 41 0
62 GRB 210204A gB 07 48 19.37 +11 24 34.2           ~ 46 0
63 GRB 090929B gB 07 50 50.90 -00 38 41.2           ~ 39 0
64 GRB 160417A gB 08 01 01.65 +07 39 46.0           ~ 18 0
65 GRB 151114A gB 08 03 46.34 -61 01 40.5           ~ 17 0
66 GRB 070420 gB 08 04 55.170 -45 33 19.99 20.39 20.01 17.16     ~ 83 0
67 Fermi bn150314205 gB 08 26 40.82 +63 50 03.4           ~ 117 0
68 Fermi bn180205184 gB 08 27 16.72 +11 32 32.6           ~ 60 0
69 GRB 140419A gB 08 27 57.56 +46 14 25.3           ~ 95 0
70 GRB 090102 gB 08 32 59.50 +33 06 25.7           ~ 253 0
71 GRB 160117B gB 08 48 46.71 -16 22 00.9           ~ 41 0
72 GRB 110503A gB 08 51 06.31 +52 12 27.7           ~ 115 0
73 GRB 130408A gB 08 57 37.30 -32 21 38.9           ~ 98 0
74 GRB 130605A gB 08 58 08.61 -33 27 40.2           ~ 26 0
75 GRB 130505A gB 09 17 21.9014988888 +01 42 03.426207768           ~ 94 0
76 GRB 171209A gB 09 17 36.66 -30 31 12.5           ~ 17 0
77 Fermi bn150607330 gB 09 19 57.14 +68 26 09.8           ~ 22 0
78 Fermi bn161017745 gB 09 31 04.53 +43 07 35.0           ~ 75 0
79 GRB 061021 gB 09 40 36.120 -21 57 05.40 18.21 19.20 16.82     ~ 160 0
80 Fermi bn140206304 gB 09 41 16.90 +66 45 42.7           ~ 149 0
81 GRB 061121 gB 09 48 54.570 -13 11 42.68 17.19 17.71 17.02     ~ 350 0
82 GRB 130418A gB 09 56 08.86 +13 40 01.8           ~ 70 0
83 Fermi bn111228657 gB 10 00 16.04 +18 17 52.2           ~ 201 0
84 GRB 110223B gB 10 00 55.86 -68 18 05.7           ~ 22 0
85 GRB 170202A gB 10 10 06 +05 01.0           ~ 90 0
86 GRB 050319 gB 10 16 47.900 +43 32 53.80   18.02 17.01     ~ 274 0
87 GRB 180325A gB 10 29 42.57 +24 27 48.7           ~ 85 0
88 Fermi bn160905471 gB 10 48 59.06 -50 48 03.9           ~ 34 0
89 GRB 170519A gB 10 53 42.49 +25 22 26.7           ~ 55 0
90 GRB 100316B gB 10 54 00 -45 28.0           ~ 62 0
91 GRB 110205A gB 10 58 31.12 +67 31 31.2           ~ 213 0
92 GRB 080430 gB 11 01 14.63 +51 41 07.8           ~ 157 0
93 GRB 080330 gB 11 17 06.70 +30 36 24.1           ~ 145 0
94 Fermi bn120712571 gB 11 18 21.16 -20 02 01.1           ~ 90 0
95 Fermi bn180618030 G 11 19 45.8010 +73 50 15.030           ~ 38 0
96 GRB 101117B gB 11 32 00.54 -72 39 45.9           ~ 27 0
97 GRB 170803A gB 11 39 44.22 -16 18 36.8           ~ 16 0
98 Fermi bn091020900 gB 11 42 55.20 +50 58 42.0           ~ 188 0
99 GRB 090530 gB 11 57 36.00 +26 35 23.0           ~ 89 0
100 Fermi bn170810918 gB 12 31 45.35 +03 39 38.3           ~ 19 0
101 GRB 080714 gB 12 32 25.29 -60 16 40.2           ~ 54 0
102 GRB 090426 G 12 36 18.0470 +32 59 09.460           ~ 237 0
103 GRB 090424 gB 12 38 07.40 +16 49 45.9           ~ 269 0
104 Fermi bn170705115 gB 12 49 +17.9           ~ 66 0
105 GRB 130122A gB 12 57 08.30 +59 00 53.5           ~ 28 0
106 GRB 080607A gB 12 59 47.14 +15 55 09.6           ~ 257 0
107 Fermi bn141220252 gB 13 00 15.70 +32 08 47.2           ~ 81 0
108 GRB 060512 gB 13 03 05.810 +41 11 27.21 19.12 19.63 17.20     ~ 142 0
109 Fermi bn130420313 gB 13 04 25.49 +59 25 26.8           ~ 112 0
110 Fermi bn141221338 gB 13 13 09.02 +08 12 18.3           ~ 76 0
111 Fermi bn120811649 gB 13 18 43.82 +62 18 02.8           ~ 113 0
112 GRB 050726 gB 13 20 11.900 -32 03 51.89     17.58     ~ 70 0
113 GRB 180224A gB 13 30 44.057 +38 04 44.55           ~ 15 0
114 GRB 060206 gB 13 31 43.420 +35 03 03.60   19.99 17.09     ~ 330 0
115 Fermi bn170906030 gB 13 35 49.24 -47 06 03.4           ~ 33 0
116 GRB 050801 gB 13 36 35.000 -21 55 41.00 15.03 15.82 15.46     ~ 164 0
117 Fermi bn140102887 gB 14 07 40.65 +01 19 59.8           ~ 53 0
118 GRB 050730 gB 14 08 17.090 -03 46 18.90   20.32 17.68     ~ 327 0
119 GRB 130725B gB 14 16 57.74 -11 07 42.5           ~ 23 0
120 GRB 130907A gB 14 23 34.03 +45 36 27.1           ~ 120 0
121 GRB 080319B gB 14 31 41.04 +36 18 09.2           ~ 508 0
122 GRB 050802 gB 14 37 05.820 +27 47 12.62 16.85 17.38 16.97     ~ 186 0
123 Fermi bn170405777 gB 14 39 18.66 -25 14 36.9           ~ 75 0
124 GRB 080310 gB 14 40 13.89 -00 10 30.4           ~ 214 0
125 GRB 081011 gB 14 41 27.20 +33 32 54.4           ~ 24 0
126 Fermi bn130610133 gB 14 57 40.91 +28 12 25.8           ~ 89 0
127 GRB 080721A gB 14 57 55.76 -11 43 24.9           ~ 180 0
128 GRB 141020A gB 14 59 58.94 +55 18 46.7           ~ 24 0
129 GRB 160127A gB 15 03 55.68 +00 04 22.4           ~ 23 0
130 GRB 060714 gB 15 11 26.450 -06 33 58.30   20.21 18.54     ~ 209 0
131 Fermi bn121125356 gB 15 14 06.58 +55 18 48.0           ~ 40 0
132 GRB 060526 gB 15 31 18.360 +00 17 04.90   18.31 17.16     ~ 288 0
133 GRB 081203A gB 15 32 07.6 +63 31 15           ~ 177 0
134 Fermi bn151001628 gB 15 34 54.89 +10 58 01.9           ~ 19 0
135 Fermi bn120922939 gB 15 38 59.67 -20 10 55.0           ~ 88 0
136 GRB 120404A gB 15 40 02.29 +12 53 06.3           ~ 104 0
137 GRB 060418 gB 15 45 42.600 -03 38 20.00 15.73 16.19 14.98     ~ 389 0
138 GRB 110715A gB 15 50 44.090 -46 14 06.53           ~ 120 0
139 GRB 060502A gB 16 03 42.480 +66 36 02.49     18.65     ~ 143 0
140 Fermi bn110102788 gB 16 23 31.41 +07 36 49.8           ~ 62 0
141 GRB 120327A gB 16 27 27.49 -29 24 53.8           ~ 116 0
142 Fermi bn100111176 gB 16 28 11.60 +15 33 02.3           ~ 47 0
143 GRB 140629A gB 16 35 54.44 +41 52 36.7           ~ 89 0
144 GRB 080210 gB 16 45 04.03 +13 49 36.3           ~ 121 0
145 GRB 090111 gB 16 46 42.14 +00 04 38.2           ~ 35 0
146 Fermi bn131002288 gB 16 52 53.02 +82 03 15.6           ~ 27 0
147 GRB 050721A gB 16 53 44.90 -28 22 51.7           ~ 8 0
148 Fermi bn121011469 gB 17 20 51.27 +41 06 36.8           ~ 55 0
149 GRB 080605 gB 17 28 30.04 +04 00 56.9           ~ 198 0
150 GRB 170205A gB 17 28 40.65 -00 03 46.9           ~ 13 0
151 GRB 180316A gB 17 41 42.82 +00 44 53.6           ~ 27 0
152 GRB 090418A gB 17 57 15.17 +33 24 21.1           ~ 101 0
153 Fermi bn151027166 gB 18 09 56.87 +61 21 12.3           ~ 143 0
154 Fermi bn120326056 gB 18 15 37.06 +69 15 35.4           ~ 188 0
155 Fermi bn120102095 gB 18 24 53.89 +24 42 47.1           ~ 42 0
156 Fermi bn140506880 gB 18 27 06.04 -55 38 08.7           ~ 113 0
157 SN 2005nc SN* 18 32 32.560 +26 20 22.34           SNIc: 400 1
158 GRB 180620A gB 18 39 35.11 +23 14 38.9           ~ 34 0
159 Fermi bn081008832 gB 18 39 52.40 -57 25 58.8           ~ 224 0
160 GRB 160425A gB 18 41 18.56 -54 21 36.1           ~ 49 0
161 Fermi bn110731465 gB 18 42 00.99 -28 32 13.8           ~ 193 0
162 GRB 170330A gB 18 53 17 -13 27.0           ~ 11 0
163 GRB 070529 gB 18 54 58.230 +20 39 34.00 20.38   17.25     ~ 98 0
164 GRB 060111B gB 19 05 42.480 +70 22 33.60     17.55     ~ 92 1
165 GRB 110726A gB 19 06 52.21 +56 04 16.4           ~ 55 0
166 GRB 080413A gB 19 09 11.73 -27 40 39.6           ~ 163 0
167 GRB 160703A gB 19 09 39 +36 54.8           ~ 33 0
168 Fermi bn160815490 gB 19 14 09.19 +84 18 50.3           ~ 16 0
169 Fermi bn140512814 gB 19 17 28.81 -15 05 39.5           ~ 133 0
170 GRB 150811A gB 19 25 21.40 -15 25 31.1           ~ 25 0
171 GRB 090618 gB 19 36 01.80 +78 21 07.1           ~ 358 0
172 Fermi bn131004904 gB 19 44 27.20 -02 57 31.0           ~ 113 0
173 GRB 100425A gB 19 56 47.16 -26 25 50.5           ~ 91 0
174 GRB 100805A gB 19 59 30.51 +52 37 40.1           ~ 55 0
175 Fermi bn121128212 gB 20 02 23.88 +54 17 59.1           ~ 128 0
176 GRB 120213A gB 20 04 02.83 +65 24 40.6           ~ 37 0
177 Fermi bn121123421 gB 20 29 16.30 -11 51 35.6           ~ 58 0
178 GRB 150403A gB 20 46 01.17 -62 42 40.1           ~ 116 0
179 GRB 130427B gB 20 59 36.00 -22 32 51.6           ~ 60 0
180 GRB 050922C gB 21 09 33.000 -08 45 30.10 15.15 15.86 14.69     ~ 301 0
181 GRB 101023A gB 21 11 51.26 -65 23 17.7           ~ 71 0
182 GRB 060614 G 21 23 32.140 -53 01 36.10           ~ 714 0
183 GRB 161117A gB 21 28 12.59 -29 36 49.9           ~ 74 0
184 GRB 060605 gB 21 28 37.320 -06 03 31.30   20.12 16.53     ~ 210 0
185 Fermi bn081126899 gB 21 34 03.54 +48 42 35.2           ~ 76 0
186 GRB 080413B gB 21 44 34.62 -19 58 51.2           ~ 191 0
187 Fermi bn080804972 gB 21 54 41.90 -53 11 20.2           ~ 158 0
188 GRB 060607 gB 21 58 50.400 -22 29 46.70 18.49 16.67 15.09     ~ 318 0
189 GRB 051109A gB 22 01 15.320 +40 49 23.70   20.09 20.14     ~ 190 0
190 Fermi bn080916406 gB 22 25 09.30 -57 01 33.7           ~ 177 0
191 GRB 050820A gB 22 29 38.110 +19 33 37.10 18.33 19.00 18.47     ~ 409 0
192 GRB 151021A gB 22 30 34.43 -33 11 50.4           ~ 72 0
193 Fermi bn120703726 gB 22 37 25.77 -29 43 24.8           ~ 40 0
194 SN 2008hw SN* 22 39 50.39 -40 08 49.1           SNIc 197 1
195 Fermi bn150821406 gB 22 47 39.15 -57 53 38.2           ~ 71 0
196 GRB 170604A gB 22 50 37.49 -15 24 44.6           ~ 37 0
197 GRB 131030A gB 23 00 16.14 -05 22 05.2           ~ 126 0
198 Fermi bn110119931 gB 23 14 21 +05 58.9           ~ 46 0
199 Fermi bn100816026 gB 23 26 57.56 +26 34 42.6           ~ 170 0
200 GRB 090812 gB 23 32 48.5 -10 36 17           ~ 165 0
201 GRB 110319A gB 23 46 00.62 -66 00 40.2           ~ 26 0
202 Fermi bn080810549 gB 23 47 08.00 +00 18 35.1           ~ 240 0
203 GRB 130701A gB 23 48 55.05 +36 06 01.2           ~ 81 0
204 Fermi bn180620660 gB 23 50 05.07 -57 57 44.7           ~ 53 0

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