H2 formation on interstellar dust grains

Title

H2 formation on interstellar dust grains: The viewpoints of theory, experiments, models and observations

 Author

Wakelam, Valentine (Laboratoire d'Astrophysique de Bordeaux)
Bron, Emeric (Instituto de Ciencia de Materiales de Madrid (ICMM); ENS-PSL Research University & CNRS)
Cazaux, S.M. (TU Delft Astrodynamics & Space Missions; PSA3: Pieter Sijtsma Advanced AeroAcoustics; Universiteit Leiden) ORCID 0000-0003-0320-3578
Dulieu, Francois (Observatoire de Paris)
Gry, Cécile (Laboratoire d'Astrophysique de Marseille)
Guillard, Pierre (UPMC-Sorbonne Universités & CNRS)
Habart, Emilie (Université Paris-Saclay)
Hornekær, Liv (Aarhus University)
Morisset, Sabine (Université Paris-Saclay)
Nyman, Gunnar (University of Gothenburg)
Pirronello, Valerio (University of Catania)
Price, Stephen D. (University College London)
Valdivia, Valeska (CEA-Saclay)
Vidali, Gianfranco (Syracuse University)
Watanabe, Naoki (Hokkaido University)

Date

2017-12-01

 Abstract

Molecular hydrogen is the most abundant molecule in the universe. It is the first one to form and survive photo-dissociation in tenuous environments. Its formation involves catalytic reactions on the surface of interstellar grains. The micro-physics of the formation process has been investigated intensively in the last 20 years, in parallel of new astrophysical observational and modeling progresses. In the perspectives of the probable revolution brought by the future satellite JWST, this article has been written to present what we think we know about the H2 formation in a variety of interstellar environments.


 Subject

Astrochemistry
Grain surface chemistry
Interstellar medium
Molecular hydrogen

 To reference this document use:

http://resolver.tudelft.nl/uuid:302b46b8-b9ed-4626-afd0-e5969385aba5

 DOI

https://doi.org/10.1016/j.molap.2017.11.001

 ISSN

2405-6758

 Source

Molecular Astrophysics, 9, 1-36

 Part of collection

Institutional Repository

 Document type

review

 Rights

© 2017 Valentine Wakelam, Emeric Bron, S.M. Cazaux, Francois Dulieu, Cécile Gry, Pierre Guillard, Emilie Habart, Liv Hornekær, Sabine Morisset, Gunnar Nyman, Valerio Pirronello, Stephen D. Price, Valeska Valdivia, Gianfranco Vidali, Naoki Watanabe
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