搜索结果: 1-15 共查到“知识库 天文学 neutron stars”相关记录22条 . 查询时间(0.109 秒)
Explaining radio emission of magnetars via rotating and oscillating magnetospheres of neutron stars
MHD: pulsars — general — relativity — oscillations — magnetar — stars:neutron — death line — plasma magnetosphere
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2011/10/10
We investigate the conditions for radio emission in rotating and oscillating magnetars, by focusing on the main physical processes determining the position of their death-lines in the P-\dot{P} diagra...
The optical/UV excess of isolated neutron stars in the RCS model
pulsars: individual RX J1308.6+2127 stars:neutron
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2011/9/28
The X-ray dim isolated neutron stars (XDINSs) are peculiar pulsar-like objects, characterized by their very well Planck-like spectrum. In studying their spectral energy distributions, the optical/UV e...
Nonradial superfluid modes in oscillating neutron stars
stars: neutron – stars: oscillations – stars: interiors
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2011/10/12
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 dep...
The cluster structure of the inner crust of neutron stars in the Hartree-Fock-Bogoliubov approach
cluster structure inner crust neutron stars approach
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2011/10/17
We analyse how the structure of the inner curst is influenced by the pairing correlations. The inner-crust matter, formed by nuclear clusters immersed in a superfluid neutron gas and ultra-relativisti...
New eigen-mode of spin oscillations in the triplet superfluid condensate in neutron stars
Neutron star Superfl uidity Spin waves
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2011/10/14
The eigen mode of spin oscillations with $\omega\simeq \sqrt{58/35}\Delta$ is predicted to exist besides already known spin waves with $\omega \simeq\Delta /\sqrt{5}$ in the triplet superfluid neutron...
Initial data for binary neutron stars with arbitrary spins
Initial data binary neutron stars arbitrary spins
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2011/10/18
In general neutron stars in binaries are spinning. Due to the existence of millisecond pulsars we know that these spins can be substantial. We argue that spins with periods on the order a few dozen mi...
Towards Quark Deconfinement in Neutron Stars via Spindown: Gravitational Waves or Magnetic Braking?
Quark Deconfinement Neutron Stars Gravitational Waves Magnetic Braking
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2011/9/28
A phase of interacting quark matter can arise inside the dense core of isolated neutron stars when they have been sufficiently spun down from their initial rapidly rotating configuration. In this work...
Tidal deformations of neutron stars: The role of stratification and elasticity
Tidal deformations stars:stratification elasticity
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2011/9/27
We discuss the response of neutron stars to the tidal interaction in a compact binary system, as encoded in the Love number associated with the induced deformation. This problem is of interest for gra...
Pasta Structures of Quark-Hadron Phase Transition in Proto-Neutron Stars
Pasta Structures Quark-Hadron Phase Transition
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2011/1/11
We study the quark-hadron mixed phase in proto-neutron stars with the finite-size effects. In the calculations of pasta structures appeared in the mixed phase, the Gibbs conditions require the pressur...
The Moving Hotspots model for kHz QPOs in accreting neutron stars
QPO plasma LMXB accretion
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2010/11/9
3D MHD simulation of accretion onto neutron stars have shown in the last few years that
the footprint (hotspot) of the accretion flow changes with time. Two different kinds of accretion,namely the fu...
Tkachenko modes in rotating neutron stars: the effect of compressibility and implications for pulsar timing noise
Tkachenko modes rotating neutron stars compressibility pulsar timing noise
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2010/11/11
Long wavelength oscillations (Tkachenko waves) of the triangular lattice of quantized vortices in super uid neutron stars have been suggested as one of the possible explanations for the timing noise o...
Resonant radii of kHz quasi-periodic oscillations in Keplerian discs orbiting neutron stars
High Energy Astrophysical Phenomena (astro-ph.HE)
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2010/12/28
Exchange of dominance between twin kHz quasi-periodic oscillations (QPOs) observed in some low-mass-X-ray-binaries (LMXB) suggests the possibility of a resonance between two oscillatory modes.
Cooling rates of neutron stars and the young neutron star in the Cassiopeia A supernova remnant
High Energy Astrophysical Phenomena (astro-ph.HE) Solar and Stellar Astrophysics (astro-ph.SR)
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2010/12/24
We explore the thermal state of the neutron star in the Cassiopeia A supernova remnant using the recent result of Ho & Heinke (Nature, 462, 71 (2009)) that the thermal radiation of this star is well-d...
Ambipolar diffusion in superfluid neutron stars
Solar and Stellar Astrophysics (astro-ph.SR)
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2010/12/24
In this paper we reconsider the problem of magnetic field diffusion in neutron star cores. We model the star as consisting of a mixture of neutrons, protons and electrons, and allow for particle react...
Generalized equation of state for cold superfluid neutron stars
High Energy Astrophysical Phenomena (astro-ph.HE)
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2010/12/24
Mature neutron stars are expected to contain various kinds of superfluids in their interiors. Modeling such stars requires the knowledge of the mutual entrainment couplings between the different conde...