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

Adam Dobrzycki; Jill Bechtold

doi:10.1086/186119

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

Adam Dobrzycki, Jill Bechtold

Steward Observatory

Research output: Contribution to journal › Article › peer-review

55 Scopus citations

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 language	English (US)
Pages (from-to)	L69-L72
Journal	Astrophysical Journal
Volume	377
Issue number	2 PART 2
DOIs	https://doi.org/10.1086/186119
State	Published - Aug 20 1991

Keywords

Cosmology
Galaxies: intergalactic medium
Quasars

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1086/186119

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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.",

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AU - Bechtold, Jill

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N2 - 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.

AB - 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.

KW - Cosmology

KW - Galaxies: intergalactic medium

KW - Quasars

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JF - Astrophysical Journal

IS - 2 PART 2

ER -

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

Abstract

Keywords

ASJC Scopus subject areas

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