2016MNRAS.455.4479N

Query : 2016MNRAS.455.4479N

2016MNRAS.455.4479N - Mon. Not. R. Astron. Soc., 455, 4479-4486 (2016/February-1)

The rapid decay phase of the afterglow as the signature of the Blandford-Znajek mechanism.

NATHANAIL A., STRANTZALIS A. and CONTOPOULOS I.

Abstract (from CDS):

Gamma-ray bursts (GRBs) are believed to be powered by the electromagnetic extraction of spin energy from a black hole endowed with a magnetic field supported by electric currents in a surrounding disc (Blandford & Znajek). A generic feature of this mechanism is that, under certain fairly general assumptions, the energy loss rate decays exponentially. In this work, we are looking precisely for such exponential decay in the light curves of long-duration GRBs observed with the X-ray telescope (XRT) instrument on the Swift satellite. We found out that almost 30 per cent of XRT light curves show such behaviour before they reach the afterglow plateau. According to Blandford & Znajek, the duration of the burst depends on the magnetic flux accumulated on the event horizon. This allows us to estimate the surface magnetic field of a possible progenitor. Our estimations are consistent with magnetic fields observed in Wolf-Rayet stars.

Abstract Copyright: © 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2015)

Journal keyword(s): black hole physics - magnetic fields - gamma-ray burst: general

Simbad objects: 91

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Number of rows : 91
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 101225A gB 00 00 47.48 +44 36 01.0           ~ 163 0
2 GRB 110420A gB 00 08 39.27 -37 53 11.9           ~ 33 0
3 Fermi bn100802240 gB 00 09 52.47 +47 45 19.1           ~ 61 0
4 Fermi bn100522157 gB 00 27 56.79 +09 24 06.6           ~ 57 0
5 GRB 060708 gB 00 31 13.850 -33 45 32.40 19.07 19.79 17.37     ~ 109 0
6 Fermi bn090621185 gB 00 43 56.80 +61 56 17.6           ~ 59 0
7 GRB 110210A gB 00 52 13.58 +07 46 46.5           ~ 25 0
8 GRB 111225A gB 00 52 37.22 +51 34 19.5           ~ 66 0
9 SN 2011kl SN* 00 57 22.64 -46 48 03.6           SNSLSN 268 1
10 Fermi bn081221681 gB 01 03 10.2 -24 32 53           ~ 186 0
11 GRB 120116A gB 01 05 00.0 +33 55 44           ~ 39 0
12 GRB 081128 gB 01 23 12.98 +38 07 37.5           ~ 42 0
13 Fermi bn100814160 gB 01 29 53.61 -17 59 43.6           ~ 219 0
14 GRB 100906A gB 01 54 44.19 +55 37 49.8           ~ 233 0
15 GRB 120215A gB 02 00 14 +08 47.4           ~ 31 0
16 GRB 081230 gB 02 29 19.20 -25 08 42.6           ~ 50 0
17 GRB 100902A gB 03 14 30 +30 58.2           ~ 68 0
18 GRB 110808A gB 03 49 04.28 -44 11 40.3           ~ 64 0
19 GRB 120401A gB 03 52 19.77 -17 38 08.3           ~ 22 0
20 GRB 071227A G 03 52 31.0260 -55 59 00.890           ~ 201 0
21 GRB 091029 gB 04 00 40.00 -55 57 12.7           ~ 168 0
22 GRB 121027A gB 04 14 23.450 -58 49 47.17           ~ 136 0
23 GRB 120106A gB 04 24 25.82 +64 02 18.8           ~ 30 0
24 GRB 050915A gB 05 26 44.804 -28 00 59.27           ~ 88 0
25 GRB 121108A gB 05 32 46.58 +54 28 24.7           ~ 39 0
26 Fermi bn100619015 gB 05 38 28.0 -27 00 02           ~ 57 0
27 GRB 060729 gB 06 21 31.850 -62 22 12.69           ~ 303 0
28 GRB 110414A gB 06 31 29.43 +24 21 44.7           ~ 40 0
29 GRB 080205 gB 06 33 00.620 +62 47 31.98           ~ 52 0
30 GRB 131018A gB 06 33 53.40 -19 53 48.5           ~ 27 0
31 GRB 061202 gB 07 02 06.190 -74 41 54.91           ~ 83 0
32 GRB 080916C gB 07 59 23.24 -56 38 16.8           ~ 386 0
33 GRB 070420 gB 08 04 55.170 -45 33 19.99 20.39 20.01 17.16     ~ 83 0
34 GRB 081028 gB 08 07 34.40 +02 18 16.8           ~ 125 0
35 GRB 051016A gB 08 11 16.710 -18 17 52.80 19.31   18.68     ~ 32 0
36 Fermi bn100704149 gB 08 54 33.92 -24 12 09.7           ~ 103 0
37 Fermi bn130528695 gB 09 18 00.12 +87 18 03.7           ~ 48 0
38 GRB 050502B gB 09 30 10.024 +16 59 48.07           ~ 169 0
39 GRB 061121 gB 09 48 54.570 -13 11 42.68 17.19 17.71 17.02     ~ 350 0
40 GRB 070306 gB 09 52 23.220 +10 28 55.20           ~ 222 1
41 Fermi bn121217313 gB 10 14 50.32 -62 21 03.3           ~ 69 0
42 Fermi bn100727238 gB 10 16 42.67 -21 23 25.1           ~ 43 0
43 GRB 100219A gB 10 16 48.48 -12 34 00.0           ~ 130 0
44 GRB 111123A gB 10 19 23.17 -20 38 41.9           ~ 83 0
45 GRB 130315A gB 10 30 09.90 -51 47 37.4           ~ 26 0
46 GRB 090515 gB 10 56 41.0 +14 27 22           ~ 122 0
47 Fermi bn101030664 gB 11 05 34.0 -16 23 11           ~ 35 0
48 GRB 100725A gB 11 05 55.59 -26 40 12.6           ~ 31 0
49 Fermi bn091020900 gB 11 42 55.20 +50 58 42.0           ~ 188 0
50 Fermi bn100615083 gB 11 48 49.25 -19 28 52.2           ~ 133 0
51 GRB 140114A gB 12 34 05.10 +27 57 02.6           ~ 61 0
52 GRB 090313 gB 13 13 36.00 +08 05 10.7           ~ 149 0
53 GRB 091104 gB 13 55 01.50 +47 24 37.9           ~ 27 0
54 GRB 120308A gB 14 36 20.02 +79 41 12.0           ~ 79 0
55 GRB 050915B gB 14 36 25.890 -67 24 33.21           ~ 56 0
56 Fermi bn130803419 gB 14 41 00.65 -02 29 31.2           ~ 33 0
57 GRB 080229 gB 15 12 52.31 -14 42 16.2           ~ 68 0
58 GRB 100526A gB 15 23 04.60 +25 37 55.9           ~ 35 0
59 GRB 080212 gB 15 24 35.400 -22 44 29.50           ~ 58 0
60 Fermi bn120922939 gB 15 38 59.67 -20 10 55.0           ~ 88 0
61 GRB 090404 gB 15 56 55.80 +35 31 03.4           ~ 79 0
62 Fermi bn101213451 gB 16 05 15.27 +21 53 50.5           ~ 68 0
63 UGCS J162444.39-273226.8 G 16 24 44.38275 -27 32 26.8381     19.70     ~ 469 1
64 GRB 090111 gB 16 46 42.14 +00 04 38.2           ~ 35 0
65 GRB 100418A gB 17 05 26.96 +11 27 41.9           ~ 198 0
66 GRB 060929 gB 17 32 28.920 +29 50 06.20           ~ 60 0
67 Fermi bn090904058 gB 17 36 44.52 -25 12 45.9           ~ 56 0
68 GRB 111103B gB 17 42 46.37 +01 36 36.3           ~ 41 0
69 GRB 090418A gB 17 57 15.17 +33 24 21.1           ~ 101 0
70 Fermi bn120326056 gB 18 15 37.06 +69 15 35.4           ~ 188 0
71 Fermi bn091026550 gB 18 26 -86.1           ~ 46 0
72 GRB 080325 gB 18 31 34.40 +36 31 26.1           ~ 76 0
73 GRB 120514A gB 18 52 00.19 -04 15 48.9           ~ 40 0
74 GRB 080503 gB 19 06 28.74 +68 47 35.8           ~ 172 0
75 GRB 120324A gB 19 24 18.84 +24 07 46.4           ~ 45 0
76 GRB 060413 gB 19 25 07.850 +13 45 29.90           ~ 69 0
77 GRB 090618 gB 19 36 01.80 +78 21 07.1           ~ 358 0
78 GRB 100425A gB 19 56 47.16 -26 25 50.5           ~ 91 0
79 GRB 120213A gB 20 04 02.83 +65 24 40.6           ~ 37 0
80 Fermi bn121123421 gB 20 29 16.30 -11 51 35.6           ~ 58 0
81 GRB 100621A gB 21 01 13.12 -51 06 22.5           ~ 204 0
82 GRB 060614 G 21 23 32.140 -53 01 36.10           ~ 714 0
83 GRB 070621 gB 21 35 10.17 -24 49 02.6           ~ 70 0
84 Fermi bn140108721 gB 21 40 26.77 +58 44 41.4           ~ 58 0
85 GRB 100514A gB 21 55 17 +29 10.2           ~ 26 0
86 GRB 051210 gB 22 00 40.930 -57 36 47.10           ~ 138 0
87 GRB 131127A gB 22 10 55.22 +36 36 33.5           ~ 33 0
88 GRB 061110A gB 22 25 09.800 -02 15 30.70 21.43         ~ 134 0
89 GRB 050716 gB 22 34 20.730 +38 41 03.60   21.52 20.32     ~ 76 0
90 GRB 131030A gB 23 00 16.14 -05 22 05.2           ~ 126 0
91 GRB 061222A gB 23 53 03.419 +46 31 58.60           ~ 177 0

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