2011A&A...525A.109D

Query : 2011A&A...525A.109D

2011A&A...525A.109D - Astronomy and Astrophysics, volume 525A109-109 (2011/1-1)

Searching for differences in Swift's intermediate GRBs.

DE UGARTE POSTIGO A., HORVATH I., VERES P., BAGOLY Z., KANN D.A., THOENE C.C., BALAZS L.G., D'AVANZO P., ALOY M.A., FOLEY S., CAMPANA S., MAO J., JAKOBSSON P., COVINO S., FYNBO J.P.U., GOROSABEL J., CASTRO-TIRADO A.J., AMATI L. and NARDINI M.

Abstract (from CDS):

Gamma-ray bursts are usually classified in terms their high-energy emission into either short-duration or long-duration bursts, which presumably reflect two different types of progenitors. However, it has been shown on statistical grounds that a third, intermediate population is needed in this classification scheme, although an extensive study of the properties of this class has so far not been performed. The large amount of follow-up studies generated during the Swift era allows us to have a sufficient sample to attempt a study of this third population through the properties of their prompt emission and their afterglows. To understand the differences of the intermediate population, we study a sample of GRBs observed by Swift during its first four years of operation. The sample contains only bursts with measured redshifts since these data help us to derive intrinsic properties. We search for differences in the properties of the three groups of bursts, which we quantify using a Kolmogorov-Smirnov test whenever possible. Intermediate bursts are found to be less energetic and have dimmer afterglows than long GRBs, especially when considering the X-ray light curves, which are on average one order of magnitude fainter than long bursts. There is a less significant trend in the redshift distribution that places intermediate bursts closer than long bursts. Except for this, intermediate bursts show similar properties to long bursts. In particular, they follow the Epeak versus Eiso correlation and have, on average, positive spectral lags with a distribution similar to that of long bursts. As for long GRBs, they normally have an associated supernova, although some intermediate bursts have been found to contain no supernova component. This study shows that intermediate bursts differ from short bursts, but exhibit no significant differences from long bursts apart from their lower brightness. We suggest that the physical difference between intermediate and long bursts could be explained by being produced by similar progenitors, of the former being the ejecta thin shells and the latter thick shells.

Abstract Copyright: ∼

Journal keyword(s): gamma-rays burst: general

Simbad objects: 133

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Number of rows : 133
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 070110 gB 00 03 39.270 -52 58 27.00 21.8 21.9 21.2     ~ 220 0
2 GRB 070611 gB 00 07 58.000 -29 45 19.40           ~ 94 0
3 GRB 060912 gB 00 21 08.160 +20 58 17.80 17.61   17.56     ~ 42 0
4 GRB 071031 gB 00 25 37.40 -58 03 33.9           ~ 184 0
5 GRB 060708 gB 00 31 13.850 -33 45 32.40 19.07 19.79 17.37     ~ 109 0
6 GRB 080710 gB 00 33 05.68 +19 30 05.8           ~ 136 0
7 GRB 050824 gB 00 48 56.100 +22 36 32.00 19.66 21.03 20.46 23.70   ~ 184 0
8 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
9 GRB 050904 gB 00 54 50.794 +14 05 09.42           ~ 496 0
10 GRB 050908 gB 01 21 50.750 -12 57 17.20           ~ 179 0
11 PSO J027.8085-18.5940 G 01 51 14.05011120 -18 35 38.4976680           ~ 192 0
12 GRB 060908 gB 02 07 18.360 +00 20 31.20 16.99 18.34 16.85     ~ 217 0
13 GRB 080707 gB 02 10 28.48 +33 06 35.1           ~ 83 0
14 GRB 070721B gB 02 12 32.98 -02 11 39.8           ~ 128 0
15 GRB 060202 gB 02 23 22.940 +38 23 03.70           ~ 102 0
16 GRB 070802 gB 02 27 35.91 -55 31 39.1           ~ 168 0
17 GRB 080411 gB 02 31 54.82 -71 18 07.5           ~ 109 0
18 GRB 050603 gB 02 39 56.839 -25 10 54.92     18.48     ~ 174 0
19 GRB 060906 gB 02 43 00.900 +30 21 42.12     19.84     ~ 147 0
20 GRB 061007 gB 03 05 19.510 -50 30 02.50 14.28 14.40 12.95     ~ 315 1
21 GRB 070318 gB 03 13 56.830 -42 56 46.30 18.27 16.23 15.49     ~ 170 0
22 GRB 050318 gB 03 18 51.000 -46 23 43.61 18.10 18.68 17.58     ~ 189 0
23 SN 2006aj SN* 03 21 39.670 +16 52 02.27 17.96 19.11 17.40     SNIc-BL 1007 1
24 GRB 060115 gB 03 36 08.400 +17 20 43.00           ~ 179 0
25 GRB 060223A gB 03 40 49.560 -17 07 48.40     17.90     ~ 98 0
26 GRB 060210 gB 03 50 57.370 +27 01 34.40   20.27       ~ 275 0
27 GRB 070714B G 03 51 22.2720 +28 17 50.943           ~ 248 0
28 GRB 071227A G 03 52 31.0260 -55 59 00.890           ~ 201 0
29 GRB 060904B gB 03 52 50.520 -00 43 30.61 18.27 19.14 18.37     ~ 208 0
30 GRB 080913 gB 04 22 57.90 -25 07 38.6           ~ 213 0
31 GRB 060124 gB 05 08 25.900 +69 44 26.98   18.91 17.35     ~ 280 0
32 GRB 081118 gB 05 30 22.28 -43 18 03.1           ~ 79 0
33 GRB 061126 gB 05 46 24.460 +64 12 38.49 18.62 18.79 19.20     ~ 182 1
34 GRB 050826 gB 05 51 01.590 -02 38 35.40           ~ 136 0
35 GRB 081121 gB 05 57 07.70 -60 36 42.1           ~ 152 0
36 Fermi bn080928628 gB 06 20 16.85 -55 11 59.3           ~ 187 0
37 GRB 060729 gB 06 21 31.850 -62 22 12.69           ~ 303 0
38 GRB 061028 gB 06 28 54.700 +46 17 57.20           ~ 54 0
39 GRB 080129 gB 07 01 08.13 -07 50 47.8           ~ 85 0
40 GRB 061222B gB 07 01 24.600 -25 51 36.00     19.87     ~ 87 0
41 GRB 070411 gB 07 09 19.930 +01 03 52.60     17.94     ~ 138 0
42 GRB 061006 G 07 24 07.8080 -79 11 55.188           ~ 214 0
43 GRB 071020 gB 07 58 39.65 +32 51 38.8           ~ 158 0
44 GRB 070612A gB 08 05 28.530 +37 16 09.57           ~ 82 0
45 GRB 081028 gB 08 07 34.40 +02 18 16.8           ~ 125 0
46 GRB 051016B gB 08 48 27.810 +13 39 20.00 20.45         ~ 153 0
47 GRB 050505 gB 09 27 03.300 +30 16 23.70     20.74     ~ 206 0
48 SDSS J093805.33+153719.0 G 09 38 05.33384 +15 37 19.0406           ~ 146 0
49 GRB 061021 gB 09 40 36.120 -21 57 05.40 18.21 19.20 16.82     ~ 160 0
50 GRB 061121 gB 09 48 54.570 -13 11 42.68 17.19 17.71 17.02     ~ 350 0
51 GRB 070306 gB 09 52 23.220 +10 28 55.20           ~ 222 1
52 GRB 060602A gB 09 58 16.93 +00 18 12.8           ~ 49 0
53 GRB 071010B gB 10 02 09.20 +45 43 52.2           ~ 173 0
54 GRB 050319 gB 10 16 47.900 +43 32 53.80   18.02 17.01     ~ 274 0
55 GRB 061217 gB 10 41 39.320 -21 07 22.11           ~ 128 0
56 GRB 080430 gB 11 01 14.63 +51 41 07.8           ~ 157 0
57 GRB 080330 gB 11 17 06.70 +30 36 24.1           ~ 145 0
58 GRB 060319 gB 11 45 33.050 +60 00 39.61 20.10         ~ 73 0
59 GRB 080603B gB 11 46 07.46 +68 03 38.5           ~ 153 0
60 GRB 070419A gB 12 10 58.830 +39 55 34.06 18.52         ~ 130 0
61 GRB 050416 gB 12 33 54.600 +21 03 26.69     19.12     ~ 300 1
62 SDSS J123612.87+285858.8 BiC 12 36 12.8803407000 +28 58 58.780075656           ~ 328 1
63 GRB 070810A gB 12 39 51.18 +10 45 02.8           ~ 80 0
64 GRB 080607A gB 12 59 47.14 +15 55 09.6           ~ 257 0
65 GRB 060512 gB 13 03 05.810 +41 11 27.21 19.12 19.63 17.20     ~ 142 0
66 GRB 070208 gB 13 11 32.607 +61 57 54.37 20.79 20.79 19.86     ~ 119 0
67 GRB 060206 gB 13 31 43.420 +35 03 03.60   19.99 17.09     ~ 330 0
68 PSO J203.7673-22.1424 G 13 35 04.16044560 -22 08 32.8717680           ~ 178 0
69 GRB 050801 gB 13 36 35.000 -21 55 41.00 15.03 15.82 15.46     ~ 164 0
70 GRB 050730 gB 14 08 17.090 -03 46 18.90   20.32 17.68     ~ 327 0
71 GRB 060801 G 14 12 01.2620 +16 58 55.970           ~ 172 0
72 GRB 080319B gB 14 31 41.04 +36 18 09.2           ~ 508 0
73 GRB 050802 gB 14 37 05.820 +27 47 12.62 16.85 17.38 16.97     ~ 186 0
74 GRB 080310 gB 14 40 13.89 -00 10 30.4           ~ 214 0
75 GRB 060814 gB 14 45 21.480 +20 35 11.80           ~ 241 0
76 GRB 060714 gB 15 11 26.450 -06 33 58.30   20.21 18.54     ~ 209 0
77 GRB 060526 gB 15 31 18.360 +00 17 04.90   18.31 17.16     ~ 288 0
78 GRB 081203A gB 15 32 07.6 +63 31 15           ~ 177 0
79 GRB 060418 gB 15 45 42.600 -03 38 20.00 15.73 16.19 14.98     ~ 389 0
80 GRB 080604 gB 15 47 51.64 +20 33 28.5           ~ 71 0
81 GRB 060510B gB 15 56 29.200 +78 34 12.00           ~ 155 0
82 GRB 060502A gB 16 03 42.480 +66 36 02.49     18.65     ~ 143 0
83 GRB 050813 gB 16 07 57.190 +11 14 57.80           ~ 147 0
84 GRB 070521 gB 16 10 38.600 +30 15 22.70           ~ 164 0
85 UGCS J162444.39-273226.8 G 16 24 44.38275 -27 32 26.8381     19.70     ~ 469 1
86 GRB 050401 gB 16 31 28.84 +02 11 14.5           ~ 348 0
87 GRB 080210 gB 16 45 04.03 +13 49 36.3           ~ 121 0
88 GRB 080319C gB 17 15 55.48 +55 23 31.7           ~ 174 0
89 GRB 080605 gB 17 28 30.04 +04 00 56.9           ~ 198 0
90 GRB 060926 gB 17 35 43.660 +13 02 18.60     19.36     ~ 135 0
91 GRB 050814 gB 17 36 45.390 +46 20 21.60           ~ 166 0
92 GRB 050223 gB 18 05 32.200 -62 28 20.40           ~ 109 0
93 GRB 071122 gB 18 26 25.26 +47 04 29.5           ~ 80 0
94 GRB 050126 gB 18 32 27.22 +42 22 14.2           ~ 129 0
95 SN 2005nc SN* 18 32 32.560 +26 20 22.34           SNIc: 400 1
96 GRB 060502B gB 18 35 46.060 +52 37 51.45           ~ 153 1
97 Fermi bn081008832 gB 18 39 52.40 -57 25 58.8           ~ 224 0
98 GRB 080520 gB 18 40 46.50 -54 59 30.4           ~ 68 0
99 GRB 070529 gB 18 54 58.230 +20 39 34.00 20.38   17.25     ~ 98 0
100 GRB 080413A gB 19 09 11.73 -27 40 39.6           ~ 163 0
101 Fermi bn080905499 G 19 10 42.0450 -18 52 54.510           ~ 200 0
102 GRB 071010A gB 19 12 14.42 -32 24 06.2           ~ 138 0
103 Fermi bn080905705 gB 20 06 57.93 -62 33 46.8           ~ 119 0
104 GRB 071003 gB 20 07 24.50 +10 56 48.8           ~ 181 0
105 GRB 050315 gB 20 25 54.100 -42 36 02.19           ~ 225 0
106 GRB 070508 gB 20 51 11.810 -78 23 04.88     19.62     ~ 144 0
107 GRB 080805 gB 20 56 55.30 -62 25 58.8           ~ 102 0
108 GRB 050922C gB 21 09 33.000 -08 45 30.10 15.15 15.86 14.69     ~ 301 0
109 GRB 060614 G 21 23 32.140 -53 01 36.10           ~ 714 0
110 GRB 060605 gB 21 28 37.320 -06 03 31.30   20.12 16.53     ~ 210 0
111 GRB 060522 gB 21 31 44.850 +02 53 10.80           ~ 140 0
112 GRB 061110B gB 21 35 40.400 +06 52 34.10           ~ 91 0
113 GRB 070429B G 21 52 03.6910 -38 49 42.820           ~ 125 0
114 Fermi bn080804972 gB 21 54 41.90 -53 11 20.2           ~ 158 0
115 GRB 051221 G 21 54 48.626 +16 53 27.16 19.49         ~ 377 0
116 GRB 060927A gB 21 58 11.930 +05 21 50.32           ~ 215 0
117 GRB 060607 gB 21 58 50.400 -22 29 46.70 18.49 16.67 15.09     ~ 318 0
118 GRB 051109A gB 22 01 15.320 +40 49 23.70   20.09 20.14     ~ 190 0
119 GRB 060505 gB 22 07 03.440 -27 48 51.89           ~ 286 1
120 GRB 061201 gB 22 08 32.060 -74 34 47.90           ~ 205 0
121 GRB 071117 gB 22 20 10.40 -63 26 36.6           ~ 112 0
122 Fermi bn080916406 gB 22 25 09.30 -57 01 33.7           ~ 177 0
123 GRB 061110A gB 22 25 09.800 -02 15 30.70 21.43         ~ 134 0
124 GRB 050820A gB 22 29 38.110 +19 33 37.10 18.33 19.00 18.47     ~ 409 0
125 SN 2008hw SN* 22 39 50.39 -40 08 49.1           SNIc 197 1
126 GRB 051109B gB 23 01 50.330 +38 40 46.51           ~ 93 0
127 GRB 081029 gB 23 07 06 -68 10.7           ~ 121 0
128 GRB 070506 gB 23 08 52.390 +10 43 20.30     19.04     ~ 86 0
129 GRB 051111A gB 23 12 33.170 +18 22 28.80 19.77 20.08 19.50     ~ 223 0
130 GRB 071025 gB 23 40 17.02 +31 46 42.4           ~ 122 0
131 Fermi bn080810549 gB 23 47 08.00 +00 18 35.1           ~ 240 0
132 GRB 060707 gB 23 48 19.000 -17 54 17.00     19.79     ~ 170 0
133 GRB 061222A gB 23 53 03.419 +46 31 58.60           ~ 177 0

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