Experimental study of the formation of molecular hydrogen and carbon dioxide on dust grain analogues

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

doi:10.1016/j.asr.2003.08.003

Experimental study of the formation of molecular hydrogen and carbon dioxide on dust grain analogues

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

Department of Physics

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

14 Scopus citations

Abstract

In the past five years, we have conducted laboratory studies of the formation of key molecules on dust grain analogues in astrophysically relevant conditions. After a description of the apparatus and of the experimental methods, we report on the application of such methods to the resolution of two astrophysical problems that have been left unsolved: (1) The determination of the efficiency and mechanism of formation of molecular hydrogen on different types of interstellar dust grains (silicates, carbonaceous material and ices) and (2) The elucidation of the mechanisms of formation of CO ₂ in dense, quiescent clouds.

Original language	English (US)
Pages (from-to)	6-13
Number of pages	8
Journal	Advances in Space Research
Volume	33
Issue number	1
DOIs	https://doi.org/10.1016/j.asr.2003.08.003
State	Published - 2004

Keywords

Dust grains
ISM
Molecular hydrogen

ASJC Scopus subject areas

Aerospace Engineering
Astronomy and Astrophysics
Geophysics
Atmospheric Science
Space and Planetary Science
General Earth and Planetary Sciences

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10.1016/j.asr.2003.08.003

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title = "Experimental study of the formation of molecular hydrogen and carbon dioxide on dust grain analogues",

abstract = " In the past five years, we have conducted laboratory studies of the formation of key molecules on dust grain analogues in astrophysically relevant conditions. After a description of the apparatus and of the experimental methods, we report on the application of such methods to the resolution of two astrophysical problems that have been left unsolved: (1) The determination of the efficiency and mechanism of formation of molecular hydrogen on different types of interstellar dust grains (silicates, carbonaceous material and ices) and (2) The elucidation of the mechanisms of formation of CO 2 in dense, quiescent clouds.",

keywords = "Dust grains, ISM, Molecular hydrogen",

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

note = "Funding Information: We acknowledge financial support from NASA through grant NAG5-6822 and NAG5-9093 to G.V. V.P. acknowledges support from the Italian Ministry for University and Scientific Research through Grant 21043088 and also support from Agenzia Spaziale Italiana. We thank Professor Ofer Biham of the Hebrew University in Jerusalem for helpful discussions, and we thank Robert D{\textquoteright}Agostino of Syracuse University (NY, USA) for technical assistance in the laboratory.",

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doi = "10.1016/j.asr.2003.08.003",

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volume = "33",

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publisher = "Elsevier",

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T1 - Experimental study of the formation of molecular hydrogen and carbon dioxide on dust grain analogues

AU - Vidali, G.

AU - Roser, J. E.

AU - Manicò, G.

AU - Pirronello, V.

N1 - Funding Information: We acknowledge financial support from NASA through grant NAG5-6822 and NAG5-9093 to G.V. V.P. acknowledges support from the Italian Ministry for University and Scientific Research through Grant 21043088 and also support from Agenzia Spaziale Italiana. We thank Professor Ofer Biham of the Hebrew University in Jerusalem for helpful discussions, and we thank Robert D’Agostino of Syracuse University (NY, USA) for technical assistance in the laboratory.

PY - 2004

Y1 - 2004

N2 - In the past five years, we have conducted laboratory studies of the formation of key molecules on dust grain analogues in astrophysically relevant conditions. After a description of the apparatus and of the experimental methods, we report on the application of such methods to the resolution of two astrophysical problems that have been left unsolved: (1) The determination of the efficiency and mechanism of formation of molecular hydrogen on different types of interstellar dust grains (silicates, carbonaceous material and ices) and (2) The elucidation of the mechanisms of formation of CO 2 in dense, quiescent clouds.

AB - In the past five years, we have conducted laboratory studies of the formation of key molecules on dust grain analogues in astrophysically relevant conditions. After a description of the apparatus and of the experimental methods, we report on the application of such methods to the resolution of two astrophysical problems that have been left unsolved: (1) The determination of the efficiency and mechanism of formation of molecular hydrogen on different types of interstellar dust grains (silicates, carbonaceous material and ices) and (2) The elucidation of the mechanisms of formation of CO 2 in dense, quiescent clouds.

KW - Dust grains

KW - ISM

KW - Molecular hydrogen

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DO - 10.1016/j.asr.2003.08.003

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SP - 6

EP - 13

JO - Advances in Space Research

JF - Advances in Space Research

IS - 1

ER -

Experimental study of the formation of molecular hydrogen and carbon dioxide on dust grain analogues

Abstract

Keywords

ASJC Scopus subject areas

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