On the Formation of Eccentric Millisecond Pulsars by Accretion-induced Collapse of Massive White Dwarfs

Abstract

The millisecond pulsar(MSP) is believed to be an old neutron star(NS) having undergone spin-up by the accreting material from the donor. Whereas, the discovery of eccentric millisecond pulsars (eMSPs) in the Galactic field challenges such a scenario producing MSP-white dwarf (WD) only in the circular orbit. As orbital periods and companion mass of these eMSPs are located in a narrow range, a reasonable postulation is that they have the same origin. Although many models have been proposed to interpret their origin, however, the origin of the narrow range of the orbital period is still an open question. The accretion-induced collapse(AIC) of the ONe WD is considered to be an important pathway to form MSP, which was expected to result in the formation of MSP in the circular orbit due to tidal circularization. Here we revisited this scenario by the binary population synthesis including the specific circularization calculation. Our results indicate that binaries with insufficient circularization in this scenario can evolve into the eMSPs. The narrow initial binary parameters required by insufficient circularization can naturally account for the narrow range of the orbital period. Although the evolution of WD's AIC process has not been well understood, the characteristic of a narrow range in the orbital period of eMSPs can still set constraints on the physics of their evolution.

arXiv commentaccepted by MNRAS

References in corpus (34)

• The ATNF Pulsar Catalogue
• Evolution of binary stars and the effect of tides on binary populations
• Comprehensive analytic formulae for stellar evolution as a function of mass and metallicity
• Binary and Millisecond Pulsars
• On the nature and evolution of the unique binary pulsar J1903+0327
• A New Evolutionary Path to Type Ia Supernovae: Helium-Rich Super-Soft X-Ray Source Channel
• On the evolution of rapidly rotating massive white dwarfs towards supernovae or collapses
• Helium star donor channel for the progenitors of type Ia supernovae
• An Eccentric Binary Millisecond Pulsar in the Galactic Plane
• Presupernova evolution of accreting white dwarfs with rotation
• Mass accumulation efficiency in helium shell flashes for various white dwarf masses
• Evolution towards and beyond accretion-induced collapse of massive white dwarfs and formation of millisecond pulsars
• The Northern High Time Resolution Universe Pulsar Survey I: Setup and initial discoveries
• Goals, Strategies and First Discoveries of AO327, the Arecibo All-Sky 327 MHz Drift Pulsar Survey
• Parkes radio searches of Fermi gamma-ray sources and millisecond pulsar discoveries
• Direct formation of millisecond pulsars from rotationally delayed accretion-induced collapse of massive white dwarfs
• On the progenitors of super-Chandrasekhar mass type Ia supernovae
• The formation of neutron star systems through accretion-induced collapse in white-dwarf binaries
• A Massive Millisecond Pulsar in an Eccentric Binary
• Common envelope evolution of eccentric binaries
• On the formation of eccentric millisecond pulsars with helium white-dwarf companions
• On the evolution of rotating accreting white dwarfs and type Ia supernovae
• Einstein@Home Discovery of a PALFA Millisecond Pulsar in an Eccentric Binary Orbit
• Magnetar Engines in Fast Blue Optical Transients and Their Connections with SLSNe, SNe Ic-BL, and lGRBs
• X-ray transients from the accretion-induced collapse of white dwarfs
• Mass measurements for two binary pulsars discovered in the PALFA survey
• Formation of millisecond pulsars with long orbital periods by accretion-induced collapse of white-dwarfs
• The single-degenerate model for the progenitors of accretion-induced collapse events
• Evolving ONe WD+He star systems to intermediate-mass binary pulsars
• Optical and radio transients after the collapse of super-Chandrasekhar white dwarf merger remnants
• The eccentric millisecond pulsar, PSR J0955$-$6150 I: Pulse profile analysis, mass measurements and constraints on binary evolution
• Asymmetrical mass ejection from proto-white dwarfs and the formation of eccentric millisecond pulsar binaries
• Eccentric millisecond pulsars by resonant convection
• Impact of Asymmetrical Mass Ejection from Proto-White Dwarfs on the Properties of Binary Millisecond Pulsars

Cited by in corpus (2)

• White dwarf eccentricity fluctuation and dissipation by AGB convection
• A Massive and Eccentric Binary Millisecond Pulsar in the Globular Cluster M10