SiO in C-rich circumstellar envelopes of AGB stars: effects of non-LTE chemistry and grain adsorption

2006/04/10 by F. L. Schoeier, F. L. Schöier, H. Olofsson +2 · 2 citations
Chemistry · Physics and Astronomy · #Astronomy #Astrophysics #Astrophysics and Star Formation Studies #Asymptotic giant branch #Carbon fibers #Carbon star #Circumstellar disk #Circumstellar envelope #Materials science #Molecular Spectroscopy and Structure #Physics #Stars #Stellar, planetary, and galactic studies #astro-ph

paper · pdf · doi:10.1051/0004-6361:20054795

Accepted for publication in A&A, 11 pages, 7 figures

arxiv created 2006/04/10 · openalex publication_date 2006/07/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

Aims.New SiO multi-transition millimetre line observations of a sample of carbon stars, including J = observations with the APEX telescope, are used to probe the role of non-equilibrium chemistry and the influence of grains in circumstellar envelopes of carbon stars.

Citations

• Submillimeter‐ and Millimeter‐Wavelength Observations of SiO and HCN in Circumstellar Envelopes of AGB Stars
• “Thermal” SiO radio line emission towards M-type AGB stars: A probe of circumstellar dust formation and dynamics
• Numerical methods for non-LTE line radiative transfer: Performance and convergence characteristics
• An atomic and molecular database for analysis of submillimetre line observations
• Models of circumstellar molecular radio line emission

Cited by

• Circumstellar molecular composition of the oxygen-rich AGB star IK Tauri II. In-depth non-LTE chemical abundance analysis
• The abundance of S- and Si-bearing molecules in O-rich circumstellar envelopes of AGB stars