Time evolution of rotating and magnetized white dwarf stars

Abstract

We investigate the evolution of isolated, zero and finite temperature, massive, uniformly rotating and highly magnetized white dwarf stars under angular momentum loss driven by magnetic dipole braking. We consider the structure and thermal evolution of white dwarf isothermal cores taking also into account the nuclear burning and neutrino emission processes. We estimate the white dwarf lifetime before it reaches the condition either for a type Ia supernova explosion or for the gravitational collapse to a neutron star. We study white dwarfs with surface magnetic fields from $10^6$ to $10^9$~G and masses from $1.39$ to $1.46M_{\odot }$ and analyze the behavior of the white dwarf parameters such as moment of inertia, angular momentum, central temperature and magnetic field intensity as a function of lifetime. The magnetic field is involved only to slow down white dwarfs, without affecting their equation of state and structure. In addition, we compute the characteristic time of nuclear reactions and dynamical time scale. The astrophysical consequences of the results are discussed.

arXiv commentThis version of the paper has been accepted for publication in MNRAS

References in corpus (35)

• New white dwarf stars in the Sloan Digital Sky Survey Data Release 10
• Equation of state of fully ionized electron-ion plasmas. II. Extension to relativistic densities and to the solid phase
• Double degenerate mergers as progenitors of high-field magnetic white dwarfs
• Equation of state of fully ionized electron-ion plasmas
• Nuclear fusion in dense matter: Reaction rate and carbon burning
• New mass limit for white dwarfs: super-Chandrasekhar type Ia supernova as a new standard candle
• Type IA supernovae from very long delayed explosion of core - WD merger
• The Physics of crystallizing white dwarfs
• SGRs and AXPs as rotation powered massive white dwarfs
• On general relativistic uniformly rotating white dwarfs
• The relativistic Feynman-Metropolis-Teller theory for white-dwarfs in general relativity
• On the relativistic Thomas-Fermi treatment of compressed atoms and compressed nuclear matter cores of stellar dimensions
• Maximum mass of stable magnetized highly super-Chandrasekhar white dwarfs: stable solutions with varying magnetic fields
• A Refined Search for Pulsations in White Dwarf Companions to Millisecond Pulsars
• Stability of super-Chandrasekhar magnetic white dwarfs
• General Relativistic effects in the structure of massive white dwarfs
• Dynamical instability of white dwarfs and breaking of spherical symmetry under the presence of extreme magnetic fields
• Magnetic Dipole Moment of SGRs and AXPs Described as Massive and Magnetic White Dwarfs
• A white dwarf merger as progenitor of the anomalous X-ray pulsar 4U 0142+61?
• Mass-Radius Relation of Strongly Magnetized White Dwarfs: Dependence on Field Geometry, GR effects and Electrostatic Corrections to the EOS
• Mass-radius relation of strongly magnetized white dwarfs: nearly independent of Landau quantization
• On the maximum mass of magnetised white dwarfs
• SGR 0418+5729, Swift J1822.3-1606, and 1E 2259+586 as massive fast rotating highly magnetized white dwarfs
• GRB 170817A-GW170817-AT 2017gfo and the observations of NS-NS, NS-WD and WD-WD mergers
• Magnetic white dwarfs with debris discs
• Unoccupied topological surface state in Bi${}_2$Te${}_2$Se
• Magnetars and White Dwarf Pulsars
• General Relativistic White Dwarfs and Their Astrophysical Implications
• Electromagnetic emission of white dwarf binary mergers
• Maximum mass of magnetic white dwarfs
• On the Maximum Mass of General Relativistic Uniformly Rotating White Dwarfs
• Consequence of total lepton number violation in strongly magnetized iron white dwarfs
• General Relativistic and Newtonian White Dwarfs
• On slowly rotating magnetized white dwarfs
• SGRs and AXPs as massive fast rotating highly magnetized white dwarfs: the case of SGR 0418+5729

Cited by in corpus (8)

• Massive white dwarfs in $f(R,L_m)$ gravity
• Near-Chandrasekhar-Mass Type Ia Supernovae from the Double-Degenerate Channel
• Neutrino oscillation in the $q$-metric
• The double white dwarf merger progenitors of SDSS J2211+1136 and ZTF J1901+1458
• On the optical transients from double white-dwarf mergers
• The white dwarf binary merger model of GRB 170817A
• Rotating strange dwarfs and their indistinguishability from white dwarfs
• Optical transients from non-explosive double white-dwarf mergers: the case of a central neutron star remnant