Asteroseismology using quadrupolar -modes revisited: Breaking of universal relationships in the slow hadron-quark conversion scenario
In this work, we consider polar perturbations, and we calculate the frequency and dam**
time of the quadrupolar fundamental f-mode of compact objects, constructed using a wide …
time of the quadrupolar fundamental f-mode of compact objects, constructed using a wide …
Universal relations for compact stars with exotic degrees of freedom
The nature of the highly dense matter inside the supernova remnant compact star is not
constrained by terrestrial experiments and hence modeled phenomenologically to …
constrained by terrestrial experiments and hence modeled phenomenologically to …
Multimessenger emission from the accretion-induced collapse of white dwarfs
LF Longo Micchi, D Radice… - Monthly Notices of the …, 2023 - academic.oup.com
We present fully general relativistic 3D numerical simulations of accretion-induced collapse
(AIC) of white dwarfs (WDs). We evolve three different WD models (non-rotating, rotating at …
(AIC) of white dwarfs (WDs). We evolve three different WD models (non-rotating, rotating at …
Gravitational Waves from Neutrino-Driven Core Collapse Supernovae: Predictions, Detection, and Parameter Estimation
A Mezzacappa, M Zanolin - arxiv preprint arxiv:2401.11635, 2024 - arxiv.org
Three-dimensional modeling has reached a level of maturity to provide detailed predictions
of the gravitational wave emission in neutrino-driven core collapse supernovae. We review …
of the gravitational wave emission in neutrino-driven core collapse supernovae. We review …
Broadening of universal relations at the birth and death of a neutron star
Certain relations among neutron-star observables that are insensitive to the underlying
nuclear matter equation of state are known to exist. Such universal relations have been …
nuclear matter equation of state are known to exist. Such universal relations have been …
Dependence of the reconstructed core-collapse supernova gravitational wave high-frequency feature on the nuclear equation of state in real interferometric data
RD Murphy, A Casallas-Lagos, A Mezzacappa… - Physical Review D, 2024 - APS
We present an analysis of gravitational wave (GW) predictions from five two-dimensional
core collapse supernova (CCSN) simulations that varied only in the equation of state (EOS) …
core collapse supernova (CCSN) simulations that varied only in the equation of state (EOS) …
Prospect of unraveling the first-order phase transition in neutron stars with and modes
Quasinormal modes of neutron stars are an exciting prospect for analyzing the internal
composition of neutron stars and studying matter at high densities. In this work, we focus on …
composition of neutron stars and studying matter at high densities. In this work, we focus on …
Grey Two-moment Neutrino Transport: Comprehensive Tests and Improvements for Supernova Simulations
H Andresen, EP O'Connor, OE Andersen… - arxiv preprint arxiv …, 2024 - aanda.org
Aims. In this work we extended an energy-integrated neutrino transport method to facilitate
efficient, yet precise, modeling of compact astrophysical objects. We particularly focus on …
efficient, yet precise, modeling of compact astrophysical objects. We particularly focus on …
Universality in supernova gravitational waves with protoneutron star properties
Gravitational wave signals from core-collapse supernovae are one of the important
observables for extracting the information of dense matter. To extract the properties of …
observables for extracting the information of dense matter. To extract the properties of …
Investigating the role of nuclear parameters on oscillation modes in hot neutron stars
Recent studies have revealed that certain nuclear parameters are more dominant than
others in governing global neutron star properties, such as its structure or oscillation mode …
others in governing global neutron star properties, such as its structure or oscillation mode …