The role of angular mementum transfer to determine the mass ratio of binaries

Title:

The role of angular mementum transfer to determine the mass ratio of binaries

Creator:

Paolicchi, P., Bellesi, M., Ferrini, F., and Bossi, M.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:c2dc9b37-bde4-4ea7-ad1d-7bf12d75b17a
uuid:c2dc9b37-bde4-4ea7-ad1d-7bf12d75b17a

Subject:

stellar astrophysics, thermodynamics, and mass ratio of binaries

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

A thermodynamical approach to the problem of star formation, presented in a previous paper, shows how, at least when the last stages of collapse are assumed as adiabatic, the characteristics of the outcomes depend on the initial conditions (thermal and rotational energies) and on the distribution of the angular momentum among the various parts of the system. In the case of a binary outcome, the distiribution can be profitably expressed in terms of two parameters, roughly corresponding to a) the spin ratio as function of the mass ratio and b) the fraction of a.m. involved in the orbital motion. A systematic exploration of these parameters allows us to analyze the different kinds of results. In this paper we present some preliminary results, assuming that both single and binary outcomes have an equilibrium Mc Laurin ellipsoidal shape, but not taking into account the possible formation of a system star+protoplanetary disc.

Language:

Czech

Rights:

http://creativecommons.org/publicdomain/mark/1.0/
policy:public

Coverage:

289-291

Source:

Publications of the Astronomical Institute of the Academy of Sciences of the Czech Republic | 1987 Volume:63-70 | Number:70

Harvested from:

CDK

Metadata only:

false