2004•The Astrophysical JournalOpen access

Gamma‐Ray Bursts versus Quasars: Lyα Signatures of Reionization versus Cosmological Infall

Rennan Barkana, Abraham Loeb

Abstract

Lyα absorption is a prominent cosmological tool for probing both galactic halos and the intergalactic medium at high redshift. We consider a variety of sources that can be used as the Lyα emitters for this purpose. Among these sources, we argue that quasars are the best probes of the evolution of massive halos, while γ-ray bursts represent the cleanest sources for studying the reionization of the intergalactic medium.

Open-access reader

About this research paper

What this paper is about

Why it matters

OpenAlex reports 93 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

Key concepts: Reionization, Physics, Astrophysics, Quasar, Intergalactic medium, Halo, Intergalactic travel, Redshift