Volume 506, Number 2, November I 2009
|Page(s)||L13 - L16|
|Published online||17 September 2009|
Letter to the Editor
The influence of antikaon condensations on neutrino emissivity from neutron stars
Center for Theoretical Physics Jilin University, Changchun 130023, PR China e-mail: email@example.com
2 Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080, PR China
Accepted: 9 September 2009
Neutrino emissivity () from the direct URCA (dURCA) process and the URCA processes with K- and condensations are considered simultaneously in neutron star matter. The neutrino emissivity due to the dURCA process plays a dominant role. However, antikaon condensations change the chemical potential of electrons, the effective masses of nucleons and the matrix elements of the reaction for the dURCA process. These changes make the neutrino emissivity for the dURCA process decrease. In this case, with antikaon condensations the total neutrino emissivity becomes lower. We believe that antikaon condensations are unfavorable for fast cooling of neutron stars.
Key words: stars: neutron / dense matter / neutrinos
© ESO, 2009
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.