Non-linear Pulsations of Upper Main Sequence Stars--II: DIRECT NUMERICAL INTEGRATIONS

Open Access

1 May 1973

journal article
Published by Oxford University Press (OUP) in Monthly Notices of the Royal Astronomical Society

Vol. 162 (2) , 169-187
https://doi.org/10.1093/mnras/162.2.169

Abstract

The non-linear pulsations of vibrationally unstable main sequence stars of between 70 and 210 M_⊙ are studied using numerical methods directly. Non-linear solutions are investigated for various amplitudes for short periods of time. The results are found to be in qualitative agreement with those obtained in a previous paper using a perturbation technique. The results are found to be different from those given by other authors. In particular no mass loss is found. Possible reasons for the discrepancy are given.

Keywords

LINEAR PULSATIONS
MAIN SEQUENCE
SEQUENCE STARS
PERTURBATION
AGREEMENT
LOSS
UNSTABLE
VIBRATIONALLY
DIRECTLY

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