Observations of the first light and the epoch of reionization

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Studying the first generation of stars, galaxies and supermassive black holes as well as the epoch of reionization is one of the fundamental questions of modern astrophysics. The last few years have witnessed the first confirmation of the discoveries of galaxies, quasars and Gamma-Ray Bursts at z > 7, with possible detections at z10. There is also mounting evidence that cosmic reionization is a prolonged process that peaks around z10 and ends at z6-7. Observations of the highest redshift intergalactic medium and the most metal-poor stars in the Galaxy begin to constrain the earliest chemical enrichment processes in the Universe. These observations provide a glimpse of cosmic history over the first billion years after the Big Bang. In this review, we will present recent results on the observations of the high-redshift Universe over the past decade, highlight key challenges and uncertainties in these observations, and preview what is possible with the next generation facilities in studying the first light and mapping the history of reionization.

Original languageEnglish (US)
Pages (from-to)865-890
Number of pages26
JournalResearch in Astronomy and Astrophysics
Volume12
Issue number8
DOIs
StatePublished - Aug 2012

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time measurement
astrophysics
galaxies
history
universe
histories
stars
intergalactic media
metal
mounting
gamma ray bursts
quasars
metals
detection
chemical

Keywords

  • cosmology: large-scale structure of universe
  • galaxies: evolution
  • galaxies: formation
  • galaxies: high-redshift
  • intergalactic medium
  • quasars: general

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Observations of the first light and the epoch of reionization. / Fan, Xiaohui.

In: Research in Astronomy and Astrophysics, Vol. 12, No. 8, 08.2012, p. 865-890.

Research output: Contribution to journalArticle

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