The ionized intergalactic gas: baryonic dark matter

A. Zurita; M. Rozas; J. E. Beckman; S. Ryder

doi:10.1023/A:1012714915386

The ionized intergalactic gas: baryonic dark matter

A. Zurita^*, M. Rozas, J. E. Beckman, S. Ryder

^*Corresponding author for this work

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

Abstract

We use Hα measurements of complete sets of H II regions in disc galaxies to compute the fraction of ionizing photons which escape from them using the hypothesis of density bounding. The escaping flux is more than enough to ionize the observed diffuse ionized gas (DIG) and the balance implies that an important fraction of the flux escapes into the intergalactic medium (IGM).

Original language	English
Pages (from-to)	499
Number of pages	1
Journal	Astrophysics and Space Science
Volume	277
Issue number	Suppl. 1
DOIs	https://doi.org/10.1023/A:1012714915386
Publication status	Published - 1 Dec 2001
Externally published	Yes

Keywords

Galaxies:spiral
H II regions
IGM
ISM

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10.1023/A:1012714915386

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abstract = "We use Hα measurements of complete sets of H II regions in disc galaxies to compute the fraction of ionizing photons which escape from them using the hypothesis of density bounding. The escaping flux is more than enough to ionize the observed diffuse ionized gas (DIG) and the balance implies that an important fraction of the flux escapes into the intergalactic medium (IGM).",

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author = "A. Zurita and M. Rozas and Beckman, {J. E.} and S. Ryder",

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T1 - The ionized intergalactic gas

T2 - baryonic dark matter

AU - Zurita, A.

AU - Rozas, M.

AU - Beckman, J. E.

AU - Ryder, S.

PY - 2001/12/1

Y1 - 2001/12/1

N2 - We use Hα measurements of complete sets of H II regions in disc galaxies to compute the fraction of ionizing photons which escape from them using the hypothesis of density bounding. The escaping flux is more than enough to ionize the observed diffuse ionized gas (DIG) and the balance implies that an important fraction of the flux escapes into the intergalactic medium (IGM).

AB - We use Hα measurements of complete sets of H II regions in disc galaxies to compute the fraction of ionizing photons which escape from them using the hypothesis of density bounding. The escaping flux is more than enough to ionize the observed diffuse ionized gas (DIG) and the balance implies that an important fraction of the flux escapes into the intergalactic medium (IGM).

KW - Galaxies:spiral

KW - H II regions

KW - IGM

KW - ISM

UR - http://www.scopus.com/inward/record.url?scp=18044390284&partnerID=8YFLogxK

U2 - 10.1023/A:1012714915386

DO - 10.1023/A:1012714915386

M3 - Article

AN - SCOPUS:18044390284

VL - 277

SP - 499

JO - Astrophysics and Space Science

JF - Astrophysics and Space Science

SN - 0004-640X

IS - Suppl. 1

ER -

The ionized intergalactic gas: baryonic dark matter

Abstract

Keywords

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