# A Unified Model for Repeating and Non-repeating Fast Radio Bursts

## TL;DR

This paper proposes a unified model where fast radio bursts are caused by asteroid impacts on neutron stars, explaining both repetitive and non-repetitive bursts based on the location and dynamics of asteroid belts.

## Contribution

It introduces a novel unified model linking asteroid impacts to both types of fast radio bursts, including specific predictions for future burst epochs.

## Key findings

- Explains repetitive bursts via neutron star passing through an asteroid belt in a binary system.
- Describes non-repetitive bursts from asteroid impacts on neutron stars with belts around the star or neutron star.
- Predicts future burst epochs around February and December 2017.

## Abstract

The model that fast radio bursts are caused by plunges of asteroids onto neutron stars can explain both repetitive and non-repetitive bursts. If a neutron star passes through an asteroid belt around another star, there would be a series of bursts caused by series of asteroid impacts. Moreover, the neutron star would cross the same belt repetitively if it is in a binary with the star hosting the asteroid belt, leading to a repeated series of bursts. I explore the properties of neutron star binaries which could lead to the only known repetitive fast radio burst so far (FRB121102). In this model, the next two epochs of bursts are expected around 27-February-2017 and 18-December-2017. On the other hand, if the asteroid belt is located around the neutron star itself, then a chance fall of an asteroid from that belt onto the neutron star would lead to a non-repetitive burst. Even a neutron star grazing an asteroid belt can lead to a non-repetitive burst caused by just one asteroid plunge during the grazing. This is possible even when the neutron star is in a binary with the asteroid hosting star, if the belt and the neutron star orbit are non-coplanar.