Collapse of low-mass stars

Calculations are made of the loss of stability and the initial phase in the collapse of the iron cores of stars with masses of 1.19 and 1.21 resulting from nonequilibrium beta processes. Detailed allowance is made for the kinetics of the beta processes and electron capture to excited states of the d...

Full description

Saved in:
Bibliographic Details
Published in:Astrophysics 1980-10, Vol.16 (2), p.192-201
Main Authors: Basko, M. M., Rudzskii, M. A., Seidov, Z. F.
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Calculations are made of the loss of stability and the initial phase in the collapse of the iron cores of stars with masses of 1.19 and 1.21 resulting from nonequilibrium beta processes. Detailed allowance is made for the kinetics of the beta processes and electron capture to excited states of the daughter nuclei. It is shown that in the collapse of stars with low mass near the Chandrasekhar limit, electron capture to excited states plays an important part in the neutronization of matter, which begins at central densities greater than or approximately equal to .1 Tg/cu cm. Graphs illustrate density effects on the rate of electron capture, temperature, rate of contraction, specific entropy, and the ratio of the total number of nucleons to the total number of protons.
ISSN:0571-7132
0571-7256
1573-8191
DOI:10.1007/BF01005467