Journal Article

The effect of deconfinement phase transition on rotochemical deviations in stars containing mixed-phase matter

Wei Wei and Xiao-Ping Zheng

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 415, issue 3, pages 2665-2669
Published in print August 2011 | ISSN: 0035-8711
Published online August 2011 | e-ISSN: 1365-2966 | DOI: http://dx.doi.org/10.1111/j.1365-2966.2011.18893.x
The effect of deconfinement phase transition on rotochemical deviations in stars containing mixed-phase matter

Show Summary Details

Preview

As a neutron star spins down its core density increases, changing the relative equilibrium concentration and causing deconfinement phase transition as well. Hadron matter is converted into quark matter in the interior, which enhances the deviation of the chemical equilibrium state. We study such deviations and their chemical energy release. Applying our results to the simulation of cooling neutron stars, we find that the surface effective temperature of neutron stars is obviously promoted. This implies that the deconfinement phase transition is able to raise the chemical heating efficiency.

Keywords: dense matter; nuclear reactions, nucleosynthesis, abundances; stars: interiors; stars: neutron

Journal Article.  2560 words.  Illustrated.

Subjects: Astronomy and Astrophysics

Full text: subscription required

How to subscribe Recommend to my Librarian

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.