Distinguishing Newly Born Strange Stars from Neutron Stars with g-Mode Oscillations

Abstract

The gravity-mode (g-mode) eigenfrequencies of newly born strange quark stars (SQSs) and neutron stars (NSs) are studied. It is found that the eigenfrequencies in SQSs are much lower than those in NSs by almost one order of magnitude, since the components of a SQS are all extremely relativistic particles while nucleons in a NS are non-relativistic. We therefore propose that newly born SQSs can be distinguished from the NSs by detecting the eigenfrequencies of the g-mode pulsations of supernovae cores through gravitational radiation by LIGO-class detectors.

9 pages, 1 figure

References in corpus (12)

• Neutron Star Observations: Prognosis for Equation of State Constraints
• Quark matter in compact stars?
• Maximum elastic deformations of compact stars with exotic equations of state
• A New Mechanism for Gravitational Wave Emission in Core-Collapse Supernovae
• The Strange Star Surface: A Crust with Nuggets
• Resonant Tidal Excitations of Inertial Modes in Coalescing Neutron Star Binaries
• Multi-Dimensional Explorations in Supernova Theory
• Are neutron stars with crystalline colour superconducting cores interesting for the LIGO experiment?
• Supernova SN2006gy as a first ever Quark Nova?
• The Birth of Quark Stars: Photon-driven Supernovae?
• Effects of QCD phase transition on gravitational radiation from two-dimensional collapse and bounce of massive stars
• Quark Stars: Features and Findings

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