The remnant of neutron star-white dwarf merger and the repeating fast radio bursts
arXiv:2002.03693 · doi:10.4236/ijaa.2020.101003
Abstract
Fast radio bursts (FRBs) at cosmological distances still hold concealed physical origins. Previously Liu (2018) proposes a scenario that the collision between a neutron star (NS) and a white dwarf (WD) can be one of the progenitors of non-repeating FRBs and notices that the repeating FRBs can also be explained if a magnetar formed after such NS-WD merger. In this paper, we investigate this channel of magnetar formation in more detail. We propose that the NS-WD post-merger, after cooling and angular momentum redistribution, may collapse to either a black hole or a new NS or even remains as a hybrid WDNS, depending on the total mass of the NS and WD. In particular, the newly formed NS can be a magnetar if the core of the WD collapsed into the NS while large quantities of degenerate electrons of the WD compressed to the outer layers of the new NS. A strong magnetic field can be formed by the electrons and positive charges with different angular velocities induced by the differential rotation of the newborn magnetar. Such a magnetar can power the repeating FRBs by the magnetic reconnections due to the crustal movements or starquakes.
arXiv comment8 pages, accepted
References in corpus (44)
- GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
- A New Electron Density Model for Estimation of Pulsar and FRB Distances
- Magnetars
- A Repeating Fast Radio Burst
- Fast Radio Bursts
- Nearby Supernova Rates from the Lick Observatory Supernova Search. III. The Rate-Size Relation, and the Rates as a Function of Galaxy Hubble Type and Colour
- An extreme magneto-ionic environment associated with the fast radio burst source FRB 121102
- Fast Radio Bursts: An Extragalactic Enigma
- FRBCAT: The Fast Radio Burst Catalogue
- A single fast radio burst localized to a massive galaxy at cosmological distance
- CHIME/FRB Detection of Eight New Repeating Fast Radio Burst Sources
- The Repeating Fast Radio Burst FRB 121102 as Seen on Milliarcsecond Angular Scales
- Fast radio bursts: the last sign of supramassive neutron stars
- A fast radio burst localised to a massive galaxy
- Cosmological Fast Radio Bursts from Binary Neutron Star Mergers
- A flaring magnetar in FRB 121102?
- FRB 121102 Bursts Show Complex Time-Frequency Structure
- Fast radio burst source properties and curvature radiation model
- A Second Source of Repeating Fast Radio Bursts
- A possible connection between Fast Radio Bursts and Gamma-Ray Bursts
- A Neutron Star with a Massive Progenitor in Westerlund 1
- The MiMeS Survey of Magnetism in Massive Stars: Introduction and overview
- On the origin of a highly-dispersed coherent radio burst
- Formation of Stable Magnetars from Binary Neutron Star Mergers
- Observations of Fast Radio Bursts at Frequencies down to 400 Megahertz
- Fast Radio Bursts from Magnetars Born in Binary Neutron Star Mergers and Accretion Induced Collapse
- On the radiation mechanism of repeating fast radio bursts
- Search for gravitational waves from a long-lived remnant of the binary neutron star merger GW170817
- White dwarf and subdwarf stars in the Sloan Digital Sky Survey Data Release 14
- Formation Rates and Evolution Histories of Magnetars
- Empirical constraints on the origin of fast radio bursts: volumetric rates and host galaxy demographics as a test of millisecond magnetar connection
- Mass transfer in white dwarf-neutron star binaries
- Fast Radio Bursts and Radio Transients from Black Hole Batteries
- On the formation of neutron stars via accretion-induced collapse in binaries
- The demographics of neutron star - white dwarf mergers: rates, delay-time distributions and progenitors
- Origin of neutron star magnetic fields
- Neutron star - white dwarf mergers: Early evolution, physical properties, and outcomes
- Fifty years of energy extraction from rotating black hole: revisiting magnetic Penrose process
- Rapidly Evolving and Luminous Transients Driven by Newly Born Neutron Stars
- Coherent curvature radiation and Fast Radio Bursts
- Fast Radio Bursts' emission mechanism: implication from localization
- Merger of white dwarf-neutron star binaries: Prelude to hydrodynamic simulations in general relativity
- Head-on collisions of binary white dwarf--neutron stars: Simulations in full general relativity
- A model of neutron-star--white-dwarf collision for fast radio bursts
Cited by in corpus (4)
- Sub-arcminute localization of 13 repeating fast radio bursts detected by CHIME/FRB
- Magnetars from Neutron Star--White Dwarf Mergers: Application to Fast Radio Bursts
- Gravitational Lensing in Modified Gravity: A case study for Fast Radio Bursts
- Continuous gravitational wave detection to understand the generation mechanism of fast radio bursts