Inferring core-collapse supernova physics with gravitational waves
Inferring core-collapse supernova physics with gravitational waves
复制标题
用引力波推断核心塌缩超新星物理
DOI：
--
复制
发表时间：
2012
期刊：
影响因子：
--
通讯作者：
Kalmus
中科院分区：
文献类型：
--
作者：
A. O.;J. Logue;I. Glasgow;Heng Siong;James Glasgow;Peter Scargill;Kalmus
Stellar collapse and the subsequent development of a core-collapse supernova explosion emit bursts of gravitational waves (GWs) that might be detected by the advanced generation of laser interferometer gravitational-wave observatories such as Advanced LIGO, Advanced Virgo, and LCGT. GW bursts from core-collapse supernovae encode information on the intricate multidimensional dynamics at work at the core of a dying massive star and may provide direct evidence for the yet uncertain mechanism driving supernovae in massive stars. Recent multidimensional simulations of core-collapse supernovae exploding via the neutrino, magnetorotational, and acoustic explosion mechanisms have predicted GW signals which have distinct structure in both the time and frequency domains. Motivated by this, we describe a promising method for determining the most likely explosion mechanism underlying a hypothetical GW signal, based on principal component analysis and Bayesian model selection. Using simulated Advanced LIGO noise and assuming a single detector and linear waveform polarization for simplicity, we demonstrate that our method can distinguish magnetorotational explosions throughout the Milky Way (D≲10 kpc) and explosions driven by the neutrino and acoustic mechanisms to D≲2 kpc. Furthermore, we show that we can differentiate between models for rotating accretion-induced collapse of massive white dwarfs and models of rotating iron core collapse with high reliability out to several kpc.
DOI：
10.1088/0004-637x/694/1/664
发表时间：
2007-08
期刊：
The Astrophysical Journal
影响因子：
--
作者：
A. Marek;H. Janka
通讯作者：
A. Marek;H. Janka
影响因子：
8.6
作者：
H. Dimmelmeier;C. Ott;H.-Th. Janka;A. Marek;E. Müller
通讯作者：
E. Müller