Hydrogen and water in the interstellar medium

G. Vidali, D. Jing, J. He

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

The formation of molecules in the interstellar medium is an important topic of research nowadays because molecules play important roles in astrophysics and astrochemistry. Molecular hydrogen, the most abundant molecule, helps the cooling of collapsing clouds and through the study of its transitions, it gives information on the conditions of the ISM (Interstellar Medium) environment it finds itself in. While neutral or ionized, it intervenes in reactions to form most molecules that have been detected in the ISM. Water is the main component of ices coating dust grain; ices are the place of the formation and storage of molecules of biogenic interest. Furthermore, how water interacts with grains is of importance in understanding the delivery of water to planetary bodies. The formation of molecular hydrogen and water occurs largely on dust grains. Here we review the most important experimental discoveries about the formation of molecular hydrogen, and we present new work on the formation of water on ices and on grain analogs.

Original languageEnglish (US)
Title of host publicationFirst International Conference on Chemical Evolution of Star Forming Region and Origin of Life, Astrochem 2012
Pages31-47
Number of pages17
DOIs
StatePublished - Jul 24 2013
Event1st International Conference on Chemical Evolution of Star Forming Region and Origin of Life, Astrochem 2012 - Kolkata, India
Duration: Jul 10 2012Jul 13 2012

Publication series

NameAIP Conference Proceedings
Volume1543
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other1st International Conference on Chemical Evolution of Star Forming Region and Origin of Life, Astrochem 2012
CountryIndia
CityKolkata
Period7/10/127/13/12

Keywords

  • Abundances
  • Chemical composition and chemical evolution
  • Interstellar dust grains
  • Molecular clouds

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Vidali, G., Jing, D., & He, J. (2013). Hydrogen and water in the interstellar medium. In First International Conference on Chemical Evolution of Star Forming Region and Origin of Life, Astrochem 2012 (pp. 31-47). (AIP Conference Proceedings; Vol. 1543). https://doi.org/10.1063/1.4812598