Composition temperature-dependent g-modes in superfluid neutron stars

Autor:	Kantor, E. M., Gusakov, M. E.
Rok vydání:	2014
Předmět:	Astrophysics - Solar and Stellar Astrophysics Astrophysics - High Energy Astrophysical Phenomena General Relativity and Quantum Cosmology
Druh dokumentu:	Working Paper
DOI:	10.1093/mnrasl/slu061
Popis:	We demonstrate a possibility of existence of a peculiar temperature-dependent composition $g$-modes in superfluid neutron stars. We calculate the Brunt-V$\ddot{\rm a}$is$\ddot{\rm a}$l$\ddot{\rm a}$ frequency for these modes, as well as their eigenfrequencies. The latter turn out to be rather large, up to $\sim 500$ Hz for a chosen model of a neutron star. This result indicates, in particular, that use of the barotropic equation of state may be not a good approximation for calculation of inertial modes even in most rapidly rotating superfluid neutron stars. Comment: 6 pages, 5 figures, accepted in MNRAS Letters; section "Summary and Outlook" is expanded in comparison with the journal version
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1404.6768 Zobrazit plný text záznamu View this record from Arxiv