2014A&A...569A..39R


C.D.S. - SIMBAD4 rel 1.7 - 2020.04.08CEST04:45:30

2014A&A...569A..39R - Astronomy and Astrophysics, volume 569A, 39-39 (2014/9-1)

Induced gravitational collapse at extreme cosmological distances: the case of GRB 090423.

RUFFINI R., IZZO L., MUCCINO M., PISANI G.B., RUEDA J.A., WANG Y., BARBARINO C., BIANCO C.L., ENDERLI M. and KOVACEVIC M.

Abstract (from CDS):

The induced gravitational collapse (IGC) scenario has been introduced in order to explain the most energetic gamma ray bursts (GRBs), Eiso=1052-1054 erg, associated with type Ib/c supernovae (SNe). It has led to the concept of binary-driven hypernovae (BdHNe) originating in a tight binary system composed by a FeCO core on the verge of a SN explosion and a companion neutron star (NS). Their evolution is characterized by a rapid sequence of events: 1) the SN explodes, giving birth to a new NS (νNS). The accretion of SN ejecta onto the companion NS increases its mass up to the critical value; 2) the consequent gravitational collapse is triggered, leading to the formation of a black hole (BH) with GRB emission; 3) a novel feature responsible for the emission in the GeV, X-ray, and optical energy range occurs and is characterized by specific power-law behavior in their luminosity evolution and total spectrum; 4) the optical observations of the SN then occurs. We investigate whether GRB 090423, one of the farthest observed GRB at z=8.2, is a member of the BdHN family. We compare and contrast the spectra, the luminosity evolution, and the detectability in the observations by Swift of GRB 090423 with the corresponding ones of the best known BdHN case, GRB 090618. Identification of constant slope power-law behavior in the late X-ray emission of GRB 090423 and its overlapping with the corresponding one in GRB 090618, measured in a common rest frame, represents the main result of this article. This result represents a very significant step on the way to using the scaling law properties, proven in Episode 3 of this BdHN family, as a cosmological standard candle. Having identified GRB 090423 as a member of the BdHN family, we can conclude that SN events, leading to NS formation, can already occur, namely at 650Myr after the Big Bang. It is then possible that these BdHNe stem from 40-60M binaries. They are probing the Population II stars after the completion and possible disappearance of Population III stars.

Abstract Copyright:

Journal keyword(s): gamma-ray burst: general - gamma-ray burst: individual: GRB 090423 - black hole physics

Status at CDS:  

Simbad objects: 20

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Number of rows : 20

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 SN 2010ma SN* 00 48 55.35 -34 33 59.5           SNIc 113 1
2 GRB 060202 gB 02 23 22.940 +38 23 03.70           ~ 84 0
3 GRB 061007 gB 03 05 19.510 -50 30 02.50 14.28 14.40 12.95     ~ 264 1
4 SN 2006aj SN* 03 21 39.670 +16 52 02.27 17.96 19.11 17.40     SNIc-BL 817 1
5 GRB 060729 gB 06 21 31.850 -62 22 12.69           ~ 243 0
6 SN 2010bh SN* 07 10 30.63 -56 15 19.7           SNIc 224 1
7 SN 2012bz SN* 09 07 38.38 +14 01 07.5           SNIb/c 126 1
8 GRB 061121 gB 09 48 54.570 -13 11 42.68 17.19 17.71 17.02     ~ 282 0
9 GRB 090423 gB 09 55 33.19 +18 08 57.7           ~ 307 0
10 GRB 110709B gB 10 58 37.2 -23 27 18           ~ 66 0
11 V* V779 Cen HXB 11 21 15.0920367078 -60 37 25.627505233   14.4       O9III/Veq 990 0
12 SN 2013cq SN* 11 32 32.84 +27 41 56.2           SNIc 365 1
13 GRB 090424 gB 12 38 07.40 +16 49 45.9           ~ 197 0
14 GRB 060418 gB 15 45 42.600 -03 38 20.00 15.73 16.19 14.98     ~ 320 1
15 GRB 100418A gB 17 05 26.96 +11 27 41.9           ~ 137 0
16 GRB 970828 gB 18 08 31.6 +59 18 51           ~ 334 1
17 GRB 090618 gB 19 36 01.80 +78 21 07.1           ~ 264 0
18 GRB 100621A gB 21 01 13.12 -51 06 22.5           ~ 144 0
19 GRB 101023A gB 21 11 51.26 -65 23 17.7           ~ 55 0
20 SN 2008hw SN* 22 39 50.39 -40 08 49.1           SNIc 140 1

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2020.04.08-04:45:30

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