2007/04/05 by R. Soria-Ruiz, J. Alcolea, F. Colomer +3 · 1 citation
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics and Star Formation Studies #Circumstellar disk #Circumstellar dust #Circumstellar envelope #Maser #Stars #Stellar evolution #Stellar pulsation #Stellar, planetary, and galactic studies #Young stellar object #astro-ph
paper · pdf · doi:10.1051/0004-6361:20077554
accepted for publication in A&A
arxiv created 2007/04/05 · openalex publication_date 2007/04/24 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Context.The study of the innermost circumstellar layers around AGB stars is crucial for understanding how these envelopes are formed and evolve. The SiO maser emission occurs at a few stellar radii from the central star, providing direct information on the stellar pulsation and on the chemical and physical properties of these regions. Our data also shed light on several aspects of the SiO maser-pumping theory that are not yet well understood.