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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Anisotropic strange stars through embedding technique in massive Brans–Dicke gravity
Muhammad Sharif,Amal Majid +1 more
TL;DR: In this article, the existence and properties of anisotropic strange quark stars in the context of massive Brans-Dicke theory were investigated and the field equations were constructed in Jordan frame by assuming a suitable potential function with MIT bag model.
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Radiation from accreting magnetized neutron stars
TL;DR: In this article, a discussion of recent work by several groups on the radiative transfer problem in a strong magnetic field and its application to models of the structure and properties of self-consistent neutron star polar cap emission regions is presented.
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Neutron star composition in strong magnetic fields
Abstract: We study the problem of neutron star composition in the presence of a strong magnetic field. The effects of the anomalous magnetic moments of both nucleons and electrons are investigated in relativistic mean field calculations for a $\beta$-equilibrium system. Since neutrons are fully spin polarized in a large field, generally speaking, the proton fraction can never exceed the field free case. An extremely strong magnetic field may lead to a pure neutron matter instead of a proton-rich matter.
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Gravitational waves and the long relativity revolution
TL;DR: The recent discovery of gravitational waves is often seen as the confirmation of a prediction Einstein made one century ago as mentioned in this paper, but only after conceptual advances in general relativity between the mid-1950s and the early 1960s could such a prediction be made on the basis of unambiguous notions shared by a community of specialists.
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Evolution of galaxy habitability
Raphael Gobat,Sungwook E. Hong +1 more
TL;DR: In this paper, a semi-analytic model of galaxy evolution with constraints on circumstellar habitable zones and the distribution of terrestrial planets was proposed to probe the suitability of galaxies of different mass and type to host habitable planets, and how it evolves with time.
References
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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
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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.
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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.