Abundance distributions over the surfaces of magnetic ApBp stars: theoretical predictions: Figure 1.
Author:
- 16 October 2015
- journal article
- research article
- Published by Oxford University Press (OUP) in Monthly Notices of the Royal Astronomical Society
- Vol. 454 (3) , 3143-3149
Abstract
Recently published empirical abundance maps, obtained through (Zeeman) Doppler mapping, do not currently agree with the abundance structures predicted by means of numerical models of atomic diffusion in magnetic atmospheres of ApBp stars. In a first step towards the resolution of these discrepancies, we present a state of the art grid of equilibrium abundance stratifications in the atmosphere of a magnetic Ap star with Teff = 10 000 K and log g = 4.0. A description of the behaviour of 16 chemical elements including predictions concerning the over- and/or underabundances over the stellar surface is followed by a discussion of the possible influence of presently neglected physical processes.Keywords
All Related Versions
This publication has 27 references indexed in Scilit:
- Discovery of secular variations in the atmospheric abundances of magnetic Ap starsAstronomy & Astrophysics, 2014
- Time-dependent diffusion in stellar atmospheresMonthly Notices of the Royal Astronomical Society, 2011
- Bi-dimensional element stratifications computed for magnetic Ap star atmospheresAstronomy & Astrophysics, 2010
- Looking for pulsations in HgMn stars through CoRoT lightcurvesAstronomy & Astrophysics, 2009
- Modelling element distributions in the atmospheres of magnetic Ap starsAstronomy & Astrophysics, 2007
- Radiative diffusion in stellar atmospheres: diffusion velocitiesAstronomy & Astrophysics, 2006
- Radiative forces and abundance anomalies of manganese in peculiar starsThe Astrophysical Journal, 1981
- Magnetic Fields of the A-Type Stars.The Astrophysical Journal, 1958
- The Variable Magnetic Field of α^{2} Canum Venaticorum.The Astrophysical Journal, 1952
- Three Magnetic Variable Stars Showing Reversal of PolarityPublications of the Astronomical Society of the Pacific, 1949