Nonradial superfluid modes in oscillating neutron stars

Дата и время публикации : 2011-07-21T11:46:44Z

Авторы публикации и институты :
A. I. Chugunov (Ioffe Institute)
M. E. Gusakov (Ioffe Institute)

Ссылка на журнал-издание: MNRAS 418 (2011) L54-L58
Коментарии к cтатье: 5+ pages, 4 figures, published version. Eqs. (3) and (5) and a few typos are corrected; results unchanged
Первичная категория: astro-ph.SR

Все категории : astro-ph.SR, astro-ph.HE, gr-qc

Краткий обзор статьи: For the first time nonradial oscillations of superfluid nonrotating stars are self-consistently studied at finite stellar temperatures. We apply a realistic equation of state and realistic density dependent model of critical temperature of neutron and proton superfluidity. In particular, we discuss three-layer configurations of a star with no neutron superfluidity at the centre and in the outer region of the core but with superfluid intermediate region. We show, that oscillation spectra contain a set of modes whose frequencies can be very sensitive to temperature variations. Fast temporal evolution of the pulsation spectrum in the course of neutron star cooling is also analysed.

Category: Physics