Efficiency of molecular hydrogen formation on silicates

Valerio Pirronello; Ofer Biham; Ciu Liu; Lyong Shen; Gianfranco Vidali

doi:10.1086/310746

Efficiency of molecular hydrogen formation on silicates

Valerio Pirronello, Ofer Biham, Ciu Liu, Lyong Shen, Gianfranco Vidali

Department of Physics

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159 Scopus citations

Abstract

We report on laboratory measurements of molecular hydrogen formation and recombination on an olivine slab as a function of surface temperature under conditions relevant to those encountered in the interstellar medium. On the basis of our experimental evidence, we recognize that there are two main regimes of H coverage that are of astrophysical importance; for each of them we provide an expression giving the production rate of molecular hydrogen in interstellar clouds.

Original language	English (US)
Pages (from-to)	L131-L134
Journal	Astrophysical Journal
Volume	483
Issue number	2 PART II
DOIs	https://doi.org/10.1086/310746
State	Published - 1997

Keywords

Dust, extinction
ISM: abundances
ISM: molecules
Molecular processes

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1086/310746

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title = "Efficiency of molecular hydrogen formation on silicates",

abstract = "We report on laboratory measurements of molecular hydrogen formation and recombination on an olivine slab as a function of surface temperature under conditions relevant to those encountered in the interstellar medium. On the basis of our experimental evidence, we recognize that there are two main regimes of H coverage that are of astrophysical importance; for each of them we provide an expression giving the production rate of molecular hydrogen in interstellar clouds.",

keywords = "Dust, extinction, ISM: abundances, ISM: molecules, Molecular processes",

author = "Valerio Pirronello and Ofer Biham and Ciu Liu and Lyong Shen and Gianfranco Vidali",

year = "1997",

doi = "10.1086/310746",

language = "English (US)",

volume = "483",

pages = "L131--L134",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

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TY - JOUR

T1 - Efficiency of molecular hydrogen formation on silicates

AU - Pirronello, Valerio

AU - Biham, Ofer

AU - Liu, Ciu

AU - Shen, Lyong

AU - Vidali, Gianfranco

PY - 1997

Y1 - 1997

N2 - We report on laboratory measurements of molecular hydrogen formation and recombination on an olivine slab as a function of surface temperature under conditions relevant to those encountered in the interstellar medium. On the basis of our experimental evidence, we recognize that there are two main regimes of H coverage that are of astrophysical importance; for each of them we provide an expression giving the production rate of molecular hydrogen in interstellar clouds.

AB - We report on laboratory measurements of molecular hydrogen formation and recombination on an olivine slab as a function of surface temperature under conditions relevant to those encountered in the interstellar medium. On the basis of our experimental evidence, we recognize that there are two main regimes of H coverage that are of astrophysical importance; for each of them we provide an expression giving the production rate of molecular hydrogen in interstellar clouds.

KW - Dust, extinction

KW - ISM: abundances

KW - ISM: molecules

KW - Molecular processes

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UR - http://www.scopus.com/inward/citedby.url?scp=0001252066&partnerID=8YFLogxK

U2 - 10.1086/310746

DO - 10.1086/310746

M3 - Article

AN - SCOPUS:0001252066

SN - 0004-637X

VL - 483

SP - L131-L134

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2 PART II

ER -

Efficiency of molecular hydrogen formation on silicates

Abstract

Keywords

ASJC Scopus subject areas

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