Formation of molecular hydrogen on amorphous water ice: Influence of morphology and ultraviolet exposure

J. E. Roser; G. Manicò; V. Pirronello; G. Vidali

doi:10.1086/344200

Formation of molecular hydrogen on amorphous water ice: Influence of morphology and ultraviolet exposure

J. E. Roser, G. Manicò, V. Pirronello, G. Vidali

Department of Physics

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59 Scopus citations

Abstract

In this paper, we report on the formation of molecular hydrogen on different types of amorphous water ice. We show that mass spectra of desorbing molecules upon formation are sensitive to the way in which ice is deposited on a cold substrate, to its thermal history, and to the action of UV photons. Implications that these results bear on H₂ formation in dense quiescent clouds are presented and discussed.

Original language	English (US)
Pages (from-to)	276-284
Number of pages	9
Journal	Astrophysical Journal
Volume	581
Issue number	1 I
DOIs	https://doi.org/10.1086/344200
State	Published - Dec 10 2002

Keywords

Astrochemistry
Dust, extinction
ISM: molecules
Methods: laboratory
Molecular processes

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1086/344200

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abstract = "In this paper, we report on the formation of molecular hydrogen on different types of amorphous water ice. We show that mass spectra of desorbing molecules upon formation are sensitive to the way in which ice is deposited on a cold substrate, to its thermal history, and to the action of UV photons. Implications that these results bear on H2 formation in dense quiescent clouds are presented and discussed.",

keywords = "Astrochemistry, Dust, extinction, ISM: molecules, Methods: laboratory, Molecular processes",

author = "Roser, {J. E.} and G. Manic{\`o} and V. Pirronello and G. Vidali",

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T1 - Formation of molecular hydrogen on amorphous water ice

T2 - Influence of morphology and ultraviolet exposure

AU - Roser, J. E.

AU - Manicò, G.

AU - Pirronello, V.

AU - Vidali, G.

PY - 2002/12/10

Y1 - 2002/12/10

N2 - In this paper, we report on the formation of molecular hydrogen on different types of amorphous water ice. We show that mass spectra of desorbing molecules upon formation are sensitive to the way in which ice is deposited on a cold substrate, to its thermal history, and to the action of UV photons. Implications that these results bear on H2 formation in dense quiescent clouds are presented and discussed.

AB - In this paper, we report on the formation of molecular hydrogen on different types of amorphous water ice. We show that mass spectra of desorbing molecules upon formation are sensitive to the way in which ice is deposited on a cold substrate, to its thermal history, and to the action of UV photons. Implications that these results bear on H2 formation in dense quiescent clouds are presented and discussed.

KW - Astrochemistry

KW - Dust, extinction

KW - ISM: molecules

KW - Methods: laboratory

KW - Molecular processes

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U2 - 10.1086/344200

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SP - 276

EP - 284

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1 I

ER -

Formation of molecular hydrogen on amorphous water ice: Influence of morphology and ultraviolet exposure

Abstract

Keywords

ASJC Scopus subject areas

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