The impact of nuclear reactions on the neutron-star g-mode spectrum

Abstract

Mature neutron stars are expected exhibit gravity g-modes due to stratification caused by varying composition. These modes are affected by nuclear reactions, leading to complex (damped) mode frequencies and the suppression of high order g-modes, in contrast with the common non-dissipative analysis which leads to an infinite g-mode spectrum. Focusing on the transition between the fast and slow reaction regimes, we examine the impact of nuclear reactions on the g-mode spectrum. The general framework for the analysis is presented along with sample numerical results for the BSk21 equation of state and the standard Urca reactions.

11 pages, 3 figures

References in corpus (8)

• GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
• Resonant Tidal Excitation of Oscillation Modes in Merging Binary Neutron Stars: Inertial-Gravity Modes
• Using gravitational-wave data to constrain dynamical tides in neutron star binaries
• Composition temperature-dependent g-modes in superfluid neutron stars
• Rotating Love: The dynamical tides of spinning Newtonian stars
• New dynamical tide constraints from current and future gravitational wave detections of inspiralling neutron stars
• The r-modes of slowly rotating, stratified neutron stars
• Formulating the r-mode problem for slowly rotating neutron stars

Cited by in corpus (9)

• The Science of the Einstein Telescope
• Investigating tidal heating in neutron stars via gravitational Raman scattering
• Neutron star g-modes in the relativistic Cowling approximation
• Premerger phenomena in neutron-star binary coalescences
• Frozen and $\beta$-equilibrated $f$ and $p$ modes of cold neutron stars: nuclear metamodel predictions
• Neutron-star seismology with realistic, finite-temperature nuclear matter
• Effects of inner crusts on $g$-mode oscillations in neutron stars
• Suppression of composition $g$-modes in chemically-equilibrating warm neutron stars
• A post-Newtonian approach to neutron star oscillations