SIMBAD references

2014A&A...565A.119S - Astronomy and Astrophysics, volume 565A, 119-119 (2014/5-1)

Effects of moderate abundance changes on the atmospheric structure and colours of Mira variables.

SCHOLZ M., IRELAND M.J. and WOOD P.R.

Abstract (from CDS):

We study the effects of moderate deviations from solar abundances upon the atmospheric structure and colours of typical Mira variables. We present two model series of dynamical opacity-sampling models of Mira variables which have (1) 1/3 solar metallicity; and (2) ``mild'' S-type C/O abundance ratio ([C/O]=0.9) with typical Zr enhancement (solar +1.0). These series are compared to a previously studied solar-abundance series which has similar fundamental parameters (mass, luminosity, period, radius) that are close to those of o Cet. Both series show noticeable effects of abundance upon stratifications and infrared colours but cycle-to-cycle differences mask these effects at most pulsation phases, with the exception of a narrow-water-filter colour near minimum phase.

Abstract Copyright:

Journal keyword(s): stars: AGB and post-AGB - stars: atmospheres - stars: abundances

Simbad objects: 8

goto Full paper

goto View the reference in ADS

To bookmark this query, right click on this link: simbad:2014A&A...565A.119S and select 'bookmark this link' or equivalent in the popup menu


2020.12.02-11:43:42

© Université de Strasbourg/CNRS

    • Contact