Journal ArticleDOI
Observation of a Rapidly Pulsating Radio Source
TLDR
In this article, the first report of a curious class of astronomical radio sources, distinguished by their rapid and extremely regular pulsations, was made by Hewish et al. They are now understood to be rapidly rotating, magnetized neutron stars, or pulsars.Abstract:
Unusual signals from pulsating radio sources have been recorded at the Mullard Radio Astronomy Observatory The radiation seems to come from local objects within the galaxy, and may be associated with oscillations of white dwarf or neutron stars 1968 saw the first report of a curious class of astronomical radio sources, distinguished by their rapid and extremely regular pulsations Hewish et al associated them with unusually stable oscillations in compact stars They are now understood to be rapidly rotating, magnetized neutron stars, or pulsarsread more
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Astro-quark matter: a challenge facing astroparticle physics
TL;DR: In this paper, a review of quark matter both in terrestrial experiment and in astrophysics is briefly reviewed, with an emphasis on quark star as the nature of pulsars.
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Does Sub-millisecond Pulsar XTE J1739-285 Contain a Low Magnetic Neutron Star or Quark Star ?
TL;DR: In this paper, the mass and radius of the fastest spinning nuclear-powered pulsar XTE J1739-285 of frequency 1122 Hz (0.8913 ms) were obtained by the empirical relation between the upper kHz quasi-periodic oscillation frequency and star spin frequency.
Isovector And Pairing Properties Of The Gogny Force In The Context Of Neutron Stars
TL;DR: In this paper, the density dependence of the symmetry energy provided by Gogny forces is found to be too soft and lies outside of currently accepted values, pointing to poor constraints in the isovector sector, that should be improved in future fitting protocols.
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Spaced Receiver Observations of Pulsed Radio Sources
TL;DR: In this article, the amplitude variations at the spaced receivers were shown to be imposed at or naer the source itselt, at least for those fluctuations having quasi-periods of up to several minutes' duration.
Posted Content
Magnetic fields around black holes
TL;DR: In this paper, the magnetic field near a rotating black hole is explored in educational style by employing analytic solutions for electrovacuum fields, and the surfaces of constant flux are plotted and the field is dragged around the black hole by purely geometrical effects of the strong gravitational field.
References
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Journal ArticleDOI
Interplanetary Scintillation of Small Diameter Radio Sources
TL;DR: In this article, the authors used the black-body equations to calculate the increased radiation appropriate to the observed brightness increase in the star over a 1,000 A.u. band-width at 5,400 A.U.
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Normal modes of radial pulsation of stars at the end point of thermonuclear evolution
David W. Meltzer,Kip S. Thorne +1 more
Journal ArticleDOI
Energetic Particles from the Sun
C. E. Fichtel,F. B. Mcdonald +1 more
TL;DR: In this article, the authors discuss the association of solar cosmic rays with flare association, solar particle acceleration, recurrence and low energy solar particle events, and discuss the effects of solar particle particle acceleration.
Journal ArticleDOI
Possible magnetospheric phenomena associated with neutron stars
TL;DR: In this paper, it was shown that the importance of the early cooling by emission of neutrinos from the Urca process has been underestimated in the foregoing investigations, and the calculations of Miss Tsuruta indicate that a neutron star will rapidly cool to 3 or 4 × 106 °K, but that after 105 years its surface temperature will still be about 2 × 106°K.