2016/05/11 by T. J. Millar, T J Millar · 11 citations
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics and Star Formation Studies #Atmospheric composition #Component (thermodynamics) #Cosmic dust #Interstellar medium #Molecular absorption #Outgassing #RADIUS #Stars #Stellar, planetary, and galactic studies #astro-ph.SR
paper · pdf · doi:10.1088/1742-6596/728/5/052001
published in Journal of Physics Conference Series 728, 052001 (IOP Publishing) · To appear in the refereed proceedings of the 11th Pacific Rim Conference on Stellar Astrophysics held in Hong Kong, Dec.14-17, 2015, Sun Kwok (editor). 10 pages, 2 figures
arxiv created 2016/05/11 · openalex created_date 2016/06/24 · openalex publication_date 2016/07/01 · arxiv updated 2016/08/24 · openalex updated_date 2026/08/05
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.