The acceleration of cosmic rays in shock fronts – I
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This article is published in Monthly Notices of the Royal Astronomical Society.The article was published on 1978-02-01 and is currently open access. It has received 2613 citations till now. The article focuses on the topics: Shock waves in astrophysics & Fermi acceleration.read more
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Diffuse steep-spectrum sources from the 74 MHz VLSS survey
TL;DR: In this article, the authors present multi-frequency radio observations of diffuse steep-spectrum radio sources selected from the 74 MHz VLSS survey, which are classified as radio relics or radio phoenices.
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Cosmic rays from the knee to the second knee: 10^14 to 10^18 eV
TL;DR: In this article, a simple Heitler model of (hadronic) air showers is developed, and special attention is drawn to explain the principle of air shower measurements, where the all-particle energy spectrum exhibits two interesting structures, the "knee" and the "second knee".
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Cosmic-Ray Production and the Role of Supernovae in NGC 6946
TL;DR: In this article, an optically selected sample of 27 SNRs from Matonick & Fesen is compared to a sample of radio-selected SNRs in the nearby spiral galaxy NGC 6946.
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Can the gamma-ray source 3EG J2033+4118 be produced by the stellar system Cyg OB2 No.5?
TL;DR: In this article, the authors discuss the possibility that the stellar system Cyg OB2 No.5 can be a gamma-ray source in the light of recent EGRET and radio data.
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Unbound Debris Streams and Remnants Resulting From the Tidal Disruptions of Stars by Supermassive Black Holes
TL;DR: In this paper, the authors present a formalism for determining the fate of unbound debris streams (UDSs) as they depart from the black hole and interact with the surrounding gas.