Zobrazeno 1 - 10
of 656
pro vyhledávání: '"Kantor E"'
Publikováno v:
Universe 8(2022), 354
Neutron stars can appear as sources of different nature. In this paper we address observability of a hypothetical class of neutron stars -- HOt and Fast Non Accreting Rotators, HOFNARs. These objects are heated due to the r-mode instability. With sur
Externí odkaz:
http://arxiv.org/abs/2206.07957
Despite the fact that different particle species can diffuse with respect to each other in neutron star (NS) cores, the effect of particle diffusion on various phenomena associated with NS oscillations is usually ignored. Here we demonstrate that the
Externí odkaz:
http://arxiv.org/abs/2105.08121
Publikováno v:
Phys. Rev. D 96, 103012 (2017)
We propose a general method to self-consistently study the quasistationary evolution of the magnetic field in the cores of neutron stars. The traditional approach to this problem is critically revised. Our results are illustrated by calculation of th
Externí odkaz:
http://arxiv.org/abs/1705.00508
Autor:
Kantor, E. M., Gusakov, M. E.
Publikováno v:
MNRAS, 473, 4272-4277 (2018)
We address the problem of magnetic field dissipation in the neutron star cores, focusing on the role of neutron superfluidity. Contrary to the results in the literature, we show that in the finite-temperature superfluid matter composed of neutrons, p
Externí odkaz:
http://arxiv.org/abs/1703.09216
The spin-down of a neutron star, e.g. due to magneto-dipole losses, results in compression of the stellar matter and induces nuclear reactions at phase transitions between different nuclear species in the crust. We show that this mechanism is effecti
Externí odkaz:
http://arxiv.org/abs/1507.04586
Publikováno v:
In Archives de pédiatrie May 2020 27(4):227-232
Publikováno v:
Phys. Rev. D 90, 024010 (2014)
We study non-radial oscillations of neutron stars with superfluid baryons, in a general relativistic framework, including finite temperature effects. Using a perturbative approach, we derive the equations describing stellar oscillations, which we sol
Externí odkaz:
http://arxiv.org/abs/1404.7512
Autor:
Kantor, E. M., Gusakov, M. E.
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 eigenfr
Externí odkaz:
http://arxiv.org/abs/1404.6768
Observations of massive ($M \approx 2.0~M_\odot$) neutron stars (NSs), PSRs J1614-2230 and J0348+0432, rule out most of the models of nucleon-hyperon matter employed in NS simulations. Here we construct three possible models of nucleon-hyperon matter
Externí odkaz:
http://arxiv.org/abs/1401.2827
Autor:
Gusakov, M. E., Kantor, E. M.
We suggest a specific new class of low-frequency g-modes in superfluid neutron stars. We determine the Brunt-Vaisala frequency for these modes and demonstrate that they can be unstable with respect to convection. The criterion for the instability ons
Externí odkaz:
http://arxiv.org/abs/1211.4418