Laboratory measurements of molecular hydrogen formation on amorphous water ice

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

Research output: Contribution to journalArticle

93 Scopus citations

Abstract

We report on an experimental study of the formation of hydrogen molecules by surface recombination of adsorbed H atoms on amorphous water ice under conditions closely simulating those encountered in astrophysical environments. Our results show that hydrogen recombination via surface reactions on icy mantles on grains is able to account for H2 formation in dense cloud environments.

Original languageEnglish (US)
Pages (from-to)L253-L256
JournalAstrophysical Journal
Volume548
Issue number2 PART 2
DOIs
StatePublished - Feb 20 2001

Keywords

  • ISM: abundances
  • ISM: clouds
  • ISM: molecules
  • Molecular processes

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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