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The Centre-of-Mass Velocity of a Radially Pulsating Star: Insights from NLTE Models

Published online by Cambridge University Press:  12 April 2016

Dimitar D. Sasselov
Dimitar D. Sasselov*
Affiliation:
Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138

Abstract

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The problem of deriving the centre-of-mass velocity of a radially pulsating star is reexamined. New observations of line asymmetry and Non-LTE radiation hydrodynamics point to a systematic effect of about 1 km s−1 in Cepheids.

Type
Part 2. Poster Papers
Information
International Astronomical Union Colloquium , Volume 155: Astrophysical Applications of Stellar Pulsation , 1995 , pp. 375 - 376
Copyright
Copyright © Astronomical Society of the Pacific 1995

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