Current challenges in the physics of white dwarf stars

D Saumon, S Blouin, PE Tremblay - Physics Reports, 2022 - Elsevier
White dwarfs are a class of stars with unique physical properties. They present many
challenging problems whose solution requires advanced theories of dense matter, state-of …

Structure of ultra-magnetised neutron stars

D Chatterjee, J Novak, M Oertel - The European Physical Journal A, 2021 - Springer
In this review we discuss self-consistent methods to calculate the global structure of strongly
magnetised neutron stars within the general-relativistic framework. We outline why solutions …

Constraints on modified gravity models from white dwarfs

S Banerjee, S Shankar, TP Singh - Journal of Cosmology and …, 2017 - iopscience.iop.org
Modified gravity theories can introduce modifications to the Poisson equation in the
Newtonian limit. As a result, we expect to see interesting features of these modifications …

[HTML][HTML] Massive white dwarfs in gravity

RV Lobato, GA Carvalho, NG Kelkar… - The European Physical …, 2022 - Springer
In this work, we investigate the equilibrium configurations of massive white dwarfs (MWD) in
the context of modified gravity, namely\(f (\mathtt {R, L_m})\) gravity, where\(\mathtt {R}\) …

The Progenitors of Superluminous Type Ia Supernovae

MF Axen, P Nugent - The Astrophysical Journal, 2023 - iopscience.iop.org
Recent observations of type Ia supernovae (SNe Ia) have discovered a subclass of" super-
Chandrasekhar" SNe Ia (SC SNe Ia) whose high luminosities and low ejecta velocities …

Magnetic field distribution in magnetars

D Chatterjee, J Novak, M Oertel - Physical Review C, 2019 - APS
Using an axisymmetric numerical code, we perform an extensive study of the magnetic-field
configurations in nonrotating neutron stars, varying the mass, magnetic-field strength and …

Accretion-induced Collapse of Dark Matter-admixed Rotating White Dwarfs: Dynamics and Gravitational-wave Signals

HS Chan, M Chu, SC Leung - The Astrophysical Journal, 2023 - iopscience.iop.org
We present two-dimensional hydrodynamic simulations of the accretion-induced collapse
(AIC) of rotating white dwarfs admixed with an extended component of dark matter (DM) …

Strongly magnetized white dwarfs and their instability due to nuclear processes

E Otoniel, B Franzon, GA Carvalho… - The Astrophysical …, 2019 - iopscience.iop.org
In this work, we study the properties of strongly magnetized white dwarfs (WDs), taking into
account the electron capture and pycnonuclear fusion reactions instabilities. The structure of …

Neutrino emissivities as a probe of the internal magnetic fields of white dwarfs

M Drewes, J McDonald, L Sablon… - The Astrophysical …, 2022 - iopscience.iop.org
The evolution of white dwarfs (WDs) depends crucially on thermal processes. The plasma in
their core can produce neutrinos that escape from the star, thus contributing to the energy …

Effects of magnetic fields in hot white dwarfs

J Peterson, V Dexheimer, R Negreiros… - The Astrophysical …, 2021 - iopscience.iop.org
In this work, we study the effects of magnetic fields on hot white dwarfs. We model their
interior as a nuclei lattice surrounded by a relativistic free Fermi gas of electrons, accounting …