A ∼10 Mpc void in the Lyα forest at z = 3.17

Adam Dobrzycki, Jill Bechtold

Research output: Contribution to journalArticle

54 Citations (Scopus)

Abstract

The spectrum of the z = 3.285 quasar, Q0302-003, shows a large (∼10 Mpc) void in the Lyα forest at z ≈ 3.17. By simulating the absorption spectrum of the quasar with a range of Lyα forest cloud parameters, we find that the probability of such a void occurring by chance is ∼2 × 10-4. Since the void is near (although not centered on) the redshift of a bright foreground quasar, we discuss the possibility that the void results from ionization of the clouds by the EUV radiation of this QSO.

Original languageEnglish (US)
JournalAstrophysical Journal
Volume377
Issue number2 PART 2
StatePublished - Aug 20 1991

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void
quasars
voids
cloud forest
absorption spectrum
ionization
absorption spectra
radiation

Keywords

  • Cosmology
  • Galaxies: intergalactic medium
  • Quasars

ASJC Scopus subject areas

  • Space and Planetary Science

Cite this

A ∼10 Mpc void in the Lyα forest at z = 3.17. / Dobrzycki, Adam; Bechtold, Jill.

In: Astrophysical Journal, Vol. 377, No. 2 PART 2, 20.08.1991.

Research output: Contribution to journalArticle

Dobrzycki, Adam ; Bechtold, Jill. / A ∼10 Mpc void in the Lyα forest at z = 3.17. In: Astrophysical Journal. 1991 ; Vol. 377, No. 2 PART 2.
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