Pulsation-induced atmospheric dynamics in M-type AGB stars

Author: Liljegren S.   Höfner S.   Eriksson K.   Nowotny W.  

Publisher: Edp Sciences

E-ISSN: 1432-0746|606|issue|A6-A6

ISSN: 0004-6361

Source: Astronomy & Astrophysics, Vol.606, Iss.issue, 2017-09, pp. : A6-A6

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

Previous Menu Next

Abstract

Context. Wind-driving in asymptotic giant branch (AGB) stars is commonly attributed to a two-step process. First, matter in the stellar atmosphere is levitated by shock waves, induced by stellar pulsation, and second, this matter is accelerated by radiation pressure on dust, resulting in a wind. In dynamical atmosphere and wind models the effects of the stellar pulsation are often simulated by a simplistic prescription at the inner boundary.