The redshift evolution of the luminosity function of type II GRBs

Abstract

As of December 2023, the Swift satellite has detected more than 1600 gamma-ray bursts (GRBs). We select 307 Type II GRBs for constructing the luminosity function (LF) based on the following criteria: (1) duration $T_{90}\ge 2s$; (2) conformity with the Amati relation for Type II GRBs; and (3) peak flux $P\ge 1\text{ph}{\text{cm}}^{-2}{\text{s}}^{-1}$. We explore two general forms of the GRB LF: a broken power-law (BPL) LF and a triple power-law (TPL) LF. We consider three evolutionary scenarios: no evolution, luminosity evolution, and density evolution. We find that the no evolution model can be excluded, while both luminosity and density evolution models effectively account for the observations. This result is consistent with previous studies on long GRBs (LGRBs). However, our Type II GRB sample favors a BPL LF, in contrast to the preference for a TPL function discovered in Long GRBs.

13 pages,4 figures,

References in corpus (22)

• The Astropy Project: Sustaining and Growing a Community-oriented Open-source Project and the Latest Major Release (v5.0) of the Core Package
• Gravitational Waves and Gamma-rays from a Binary Neutron Star Merger: GW170817 and GRB 170817A
• Discerning the physical origins of cosmological Gamma-ray bursts based on multiple observational criteria: the cases of z=6.7 GRB 080913, z=8.3 GRB 090423, and some short/hard GRBs
• A Complete Catalog of Swift GRB Spectra and Durations: Demise of a Physical Origin for Pre-Swift High-Energy Correlations
• The Fermi-LAT high-latitude Survey: Source Count Distributions and the Origin of the Extragalactic Diffuse Background
• Long Gamma-Ray Bursts and Type Ic Core Collapse Supernovae Have Similar Locations in Hosts
• Star Formation History up to z = 7.4: Implications for Gamma-Ray Bursts and the Cosmic Metallicity Evolution
• The Ep,i - Eiso correlation: type I gamma-ray bursts and the new classification method
• The Konus-Wind catalog of gamma-ray bursts with known redshifts. I. Bursts detected in the triggered mode
• Gamma-ray Burst Cosmology
• Post-Launch Analysis of Swift's Gamma-Ray Burst Detection Sensitivity
• Cosmological Evolution of Long Gamma-ray Bursts and Star Formation Rate
• An unexpectedly low-redshift excess of Swift gamma-ray burst rate
• Gamma Ray Bursts in the Swift-Fermi Era
• Luminosity function and jet structure of Gamma Ray Bursts
• The formation rate of short gamma-ray bursts and gravitational waves
• $E_{\mathrm{iso}}$-$E_{\mathrm{p}}$ correlation of gamma ray bursts: calibration and cosmological applications
• Revisiting the luminosity and redshift distributions of long gamma-ray bursts
• The quest for new correlations in the realm of the Gamma-Ray Burst -- Supernova connection
• Cosmological Tests with the FSRQ Gamma-ray Luminosity Function
• The Stellar-mass Function of Long Gamma-Ray Burst Host Galaxies
• Luminosity Function of collapsar Gamma-Ray Bursts:the Progenitor of Long Gamma-Ray Bursts Is Not Singular

Cited by in corpus (1)

• Luminosity function of Type II GRBs:differences from long GRBs