Gravitational Waves from a Core g Mode in Supernovae as Probes of the High-Density Equation of State.
Phys Rev Lett
; 131(19): 191201, 2023 Nov 10.
Article
em En
| MEDLINE
| ID: mdl-38000402
ABSTRACT
Using relativistic supernova simulations of massive progenitor stars with a quark-hadron equation of state (EOS) and a purely hadronic EOS, we identify a distinctive feature in the gravitational-wave signal that originates from a buoyancy-driven mode (g mode) below the proto-neutron star convection zone. The mode frequency lies in the range 200â²fâ²800 Hz and decreases with time. As the mode lives in the core of the proto-neutron star, its frequency and power are highly sensitive to the EOS, in particular the sound speed around twice saturation density.
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MEDLINE
Idioma:
En
Revista:
Phys Rev Lett
Ano de publicação:
2023
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Article
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Austrália