Neutron star spin-kick velocity correlation effect on binary neutron star coalescence rates and spin-orbit misalignment of the components

Abstract

We study the effect of the neutron star spin -- kick velocity alignment observed in young radio pulsars on the coalescence rate of binary neutron stars. Two scenarios of the neutron star formation are considered: when the kick is always present and when it is small or absent if a neutron star is formed in a binary system due to electron-capture degenerate core collapse. The effect is shown to be especially strong for large kick amplitudes and tight alignments, reducing the expected galactic rate of binary neutron star coalescences compared to calculations with randomly directed kicks. The spin-kick correlation also leads to a much narrower NS spin-orbit misalignment.

7 pages, 5 figures, accepted for publiction in MNRAS

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Cited by in corpus (12)

• Predictions for the Rates of Compact Binary Coalescences Observable by Ground-based Gravitational-wave Detectors
• Formation of Double Neutron Star Systems
• Compact Binary Coalescences in the Band of Ground-based Gravitational-Wave Detectors
• Resonant-plane locking and spin alignment in stellar-mass black-hole binaries: a diagnostic of compact-binary formation
• Binary compact object coalescence rates: The role of elliptical galaxies
• Black Hole Spin Evolution: Implications for Short-hard Gamma Ray Bursts and Gravitational Wave Detection
• Pulsar spin-velocity alignment from single and binary neutron star progenitors
• New gravitational waveform model for precessing binary neutron stars with double-spin effects
• The impact of spin-kick alignment on the inferred velocity distribution of isolated pulsars
• Natal kicks of compact objects
• Supernovae - Optical Precursors of Short Gamma-Ray Bursts
• Magnetic fileds of coalescing neutron stars and the luminosity function of short gamma-ray burst