Pulsational velocity fields in the atmospheres of two roAp stars HR1217 and γ Equ-Reference-Cited by-同舟云学术

Pulsational velocity fields in the atmospheres of two roAp stars HR1217 and γ Equ

Published:2004 Issue: Volume:193 Page:208-211
ISSN:0252-9211
Container-title:International Astronomical Union Colloquium
language:en
Short-container-title:International Astronomical Union Colloquium

Author:

Sachkov M.,Ryabchikova T.,Kochukhov O.,Weiss W.W.,Reegen P.,Landstreet J.D.

Abstract

AbstractWe discuss spectroscopic observations of pulsations in the roAp stars γ Equ and HR 1217. In both stars we observe strong variations of rare-earth lines and detect running magneto-acoustic waves, but do not find evidence for a standing pulsational wave. In γ Equ we find strong pulsational variations across line profiles, characteristic of l ≥ 2 modes.

Publisher

Cambridge University Press (CUP)

Subject

General Medicine

Reference5 articles.

1. New heights in asteroseismology: VLT spectroscopy of the roAp star HD 166473

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