Molecular hydrogen

Emilie Habart; Malcolm Walmsley; Laurent Verstraete; Stephanie Cazaux; Roberto Maiolino; Pierre Cox; Francois Boulanger; Guillaume Pineau Des Forêts

doi:10.1007/1-4020-3844-5_3

Molecular hydrogen

Emilie Habart^*, Malcolm Walmsley, Laurent Verstraete, Stephanie Cazaux, Roberto Maiolino, Pierre Cox, Francois Boulanger, Guillaume Pineau Des Forêts

^*Corresponding author for this work

Research output: Chapter in Book/Conference proceedings/Edited volume › Chapter › Scientific › peer-review

Abstract

Observations of H₂ line emission in galactic and extragalactic environments obtained with the Infrared Space Observatory (ISO) are reviewed. The diagnostic capability of H₂ observations is illustrated. We discuss what one has learned about such diverse astrophysical sources as photon-dominated regions, shocks, young stellar objects, planetary nebulae and starburst galaxies from ISO observations of H₂ emission. In this context, we emphasise use of measured H₂ line intensities to infer important physical quantities such as the gas temperature, gas density and radiation field and we discuss the different possible excitation mechanisms of H₂. We also briefly consider future prospects for observation of H₂ from space and from the ground.

Original language	English
Title of host publication	ISO Science Legacy: A Compact Review of ISO Major Achievements
Publisher	Springer
Pages	71-91
Number of pages	21
ISBN (Print)	1402038437, 9781402038433
DOIs	https://doi.org/10.1007/1-4020-3844-5_3
Publication status	Published - 2005
Externally published	Yes

Keywords

circumstellar matter
infrared: galaxies
infrared: spectroscopy
ISM: clouds
ISM: molecules
molecular hydrogen
molecular processes
star formation

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10.1007/1-4020-3844-5_3

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title = "Molecular hydrogen",

abstract = "Observations of H2 line emission in galactic and extragalactic environments obtained with the Infrared Space Observatory (ISO) are reviewed. The diagnostic capability of H2 observations is illustrated. We discuss what one has learned about such diverse astrophysical sources as photon-dominated regions, shocks, young stellar objects, planetary nebulae and starburst galaxies from ISO observations of H2 emission. In this context, we emphasise use of measured H2 line intensities to infer important physical quantities such as the gas temperature, gas density and radiation field and we discuss the different possible excitation mechanisms of H2. We also briefly consider future prospects for observation of H2 from space and from the ground.",

keywords = "circumstellar matter, infrared: galaxies, infrared: spectroscopy, ISM: clouds, ISM: molecules, molecular hydrogen, molecular processes, star formation",

author = "Emilie Habart and Malcolm Walmsley and Laurent Verstraete and Stephanie Cazaux and Roberto Maiolino and Pierre Cox and Francois Boulanger and {Des For{\^e}ts}, {Guillaume Pineau}",

year = "2005",

doi = "10.1007/1-4020-3844-5_3",

language = "English",

isbn = "1402038437",

pages = "71--91",

booktitle = "ISO Science Legacy: A Compact Review of ISO Major Achievements",

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TY - CHAP

T1 - Molecular hydrogen

AU - Habart, Emilie

AU - Walmsley, Malcolm

AU - Verstraete, Laurent

AU - Cazaux, Stephanie

AU - Maiolino, Roberto

AU - Cox, Pierre

AU - Boulanger, Francois

AU - Des Forêts, Guillaume Pineau

PY - 2005

Y1 - 2005

N2 - Observations of H2 line emission in galactic and extragalactic environments obtained with the Infrared Space Observatory (ISO) are reviewed. The diagnostic capability of H2 observations is illustrated. We discuss what one has learned about such diverse astrophysical sources as photon-dominated regions, shocks, young stellar objects, planetary nebulae and starburst galaxies from ISO observations of H2 emission. In this context, we emphasise use of measured H2 line intensities to infer important physical quantities such as the gas temperature, gas density and radiation field and we discuss the different possible excitation mechanisms of H2. We also briefly consider future prospects for observation of H2 from space and from the ground.

AB - Observations of H2 line emission in galactic and extragalactic environments obtained with the Infrared Space Observatory (ISO) are reviewed. The diagnostic capability of H2 observations is illustrated. We discuss what one has learned about such diverse astrophysical sources as photon-dominated regions, shocks, young stellar objects, planetary nebulae and starburst galaxies from ISO observations of H2 emission. In this context, we emphasise use of measured H2 line intensities to infer important physical quantities such as the gas temperature, gas density and radiation field and we discuss the different possible excitation mechanisms of H2. We also briefly consider future prospects for observation of H2 from space and from the ground.

KW - circumstellar matter

KW - infrared: galaxies

KW - infrared: spectroscopy

KW - ISM: clouds

KW - ISM: molecules

KW - molecular hydrogen

KW - molecular processes

KW - star formation

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U2 - 10.1007/1-4020-3844-5_3

DO - 10.1007/1-4020-3844-5_3

M3 - Chapter

AN - SCOPUS:84891406935

SN - 1402038437

SN - 9781402038433

SP - 71

EP - 91

BT - ISO Science Legacy: A Compact Review of ISO Major Achievements

PB - Springer

ER -

Molecular hydrogen

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Keywords

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