Properties of Long Gamma Ray Burst Progenitors in Cosmological Simulations

TL;DR

This paper uses cosmological simulations and a Monte Carlo model to study long gamma-ray burst progenitors, aiming to understand their properties and detectability in the context of galaxy formation and evolution.

Contribution

It introduces a novel Monte Carlo code coupled with cosmological simulations to analyze LGRB progenitors and their observability, incorporating stochastic effects.

Findings

LGRB progenitors can be effectively modeled within galaxy formation simulations.

The study provides predictions for LGRB detection rates and host galaxy characteristics.

Results align with observational data from high-energy satellite missions.

Abstract

We study the nature of long gamma ray burst (LGRB) progenitors using cosmological simulations of structure formation and galactic evolution. LGRBs are potentially excellent tracers of stellar evolution in the early universe. We developed a Monte Carlo numerical code which generates LGRBs coupled to cosmological simulations. The simulations allows us to follow the ormation of galaxies self-consistently. We model the detectability of LGRBs and their host galaxies in order to compare results with observational data obtained by high-energy satellites. Our code also includes stochastic effects in the observed rate of LGRBs.