Nonvalidity of I-Love-Q Relations for Hot White Dwarf Stars

Abstract

The equilibrium configurations of uniformly rotating white dwarfs at finite temperatures are investigated, exploiting the Chandrasekhar equation of state for different isothermal cores. The Hartle-Thorne formalism is applied to construct white dwarf configurations in the framework of Newtonian physics. The equations of structure are considered in the slow rotation approximation and all basic parameters of rotating hot white dwarfs are computed to test the so-called moment of inertia, tidal Love number and quadrupole moment ($I$-Love-$Q$) relations. It is shown that even within the same equation of state the $I$-Love-$Q$ relations are not universal for white dwarfs at finite temperatures.

7 pages, 12 figures

References in corpus (15)

• White Dwarf Mass Distribution in the SDSS
• New white dwarf stars in the Sloan Digital Sky Survey Data Release 10
• Tidal deformability and I-Love-Q relations for gravastars with polytropic thin shells
• A new temperature dependent hyperonic equation of state: application to rotating neutron star models and I-Q-relations
• Dark stars: gravitational and electromagnetic observables
• Why I-Love-Q
• Rotating proto-neutron stars: spin evolution, maximum mass and I-Love-Q relations
• General Relativistic effects in the structure of massive white dwarfs
• Unveiling the universality of I-Love-Q relations
• Tidal deformations of compact stars with crystalline quark matter
• I-Love relation for incompressible stars and realistic stars
• General Relativistic White Dwarfs and Their Astrophysical Implications
• On the Maximum Mass of General Relativistic Uniformly Rotating White Dwarfs
• General Relativistic and Newtonian White Dwarfs
• SGRs and AXPs as massive fast rotating highly magnetized white dwarfs: the case of SGR 0418+5729

Cited by in corpus (9)

• Analytic I-Love-C relations for realistic neutron stars
• Orbital relaxation and excitation of planets tidally interacting with white dwarfs
• I-Love-Q Relations for Realistic White Dwarfs
• Rotating white dwarf models with finite-temperature envelope
• Equilibrium Configurations of Rotating White Dwarfs at Finite Temperatures
• Dark Matter-admixed Rotating White Dwarfs as Peculiar Compact Objects
• Oscillations and tidal deformations of crystallized white dwarfs
• Compact star deformation and universal relationship for magnetized white dwarfs
• Dark I-Love-Q