Volume 367, Number 2, February IV 2001
|Page(s)||582 - 587|
|Section||Interstellar and circumstellar matter|
|Published online||15 February 2001|
On the minimum and maximum mass of neutron stars and the delayed collapse
Sektion Physik, Ludwig-Maximilians Universität München, Am Coulombwall 1, 85748 Garching, Germany
Corresponding author: K. Strobel, Klaus.Strobel@physik.uni-muenchen.de
Accepted: 28 November 2000
The minimum and maximum mass of protoneutron stars and neutron stars are investigated. The hot dense matter is described by relativistic (including hyperons) and non-relativistic equations of state. We show that the minimum mass (∼ 0.88-1.28 ) of a neutron star is determined by the earliest stage of its evolution and is nearly unaffected by the presence of hyperons. The maximum mass of a neutron star is limited by the protoneutron star or hot neutron star stage. Further we find that the delayed collapse of a neutron star into a black hole during deleptonization is not only possible for equations of state with softening components, as for instance, hyperons, meson condensates etc., but also for neutron stars with a pure nucleonic-leptonic equation of state.
Key words: stars: evolution / stars: neutron / dense matter / equation of state
© ESO, 2001
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.