Long Gamma Ray Bursts Trace The Star Formation History

TL;DR

This paper demonstrates that the observed rate and distribution of long gamma-ray bursts align with the star formation rate if they originate from type Ic supernovae and follow the geometry proposed in the cannonball model.

Contribution

It establishes a connection between long gamma-ray bursts, type Ic supernovae, and the star formation history using the cannonball model geometry.

Findings

LGRB rate matches the star formation rate across redshifts.

LGRB distribution is consistent with the CB model assumptions.

Supports supernovae Ic as progenitors of LGRBs.

Abstract

We show that if the broad-line supernova explosions of type Ic (SNeIc) produce the bulk of the observed long duration gamma ray bursts (LGRBs), which include the high luminosity GRBs, low luminosity GRBs and X-ray flashes (XRFs), and if LGRBs have the geometry assumed in the cannonball (CB) model of LGRBs, then their rate measured by Swift and their redshift distribution are consistent with the star formation rate (SFR) over the entire range of redshifts where the SFR has been measured with sufficient accuracy.