Chemistry in AGB stars: successes and challenges

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Abstract

Emission and absorption line observations of molecules in late-type stars are a vital component in our understanding of stellar evolution, dust formation and mass loss in these objects. The molecular composition of the gas in the circumstellar envelopes of AGB stars reflects chemical processes in gas whose properties are strong functions of radius with density and temperature varying by more than ten and two orders of magnitude, respectively. In addition, the interstellar UV field plays a critical role in determining not only molecular abundances but also their radial distributions. In this article, I shall briefly review some recent successful approaches to describing chemistry in both the inner and outer envelopes and outline areas of challenge for the future.
Original languageEnglish
Article number052001
Number of pages10
JournalJournal of Physics: Conference Series
Volume728
Issue numberSession IV
Early online date08 Aug 2016
DOIs
Publication statusEarly online date - 08 Aug 2016

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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