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astro-ph1999
The Virtues of X-ray Clusters and the Entropy of Cosmic Baryons
Paolo Tozzi, Colin Norman
The thermodynamics of the diffuse, X-ray emitting gas in clusters and groups of galaxies are affected by a certain amount of non-gravitational energy input, as indicated by the sca…
astro-ph1999
Intergalactic Propagation of UHE Cosmic Rays
Abraham Achterberg, Yves A. Gallant, Colin A. Norman +1
We discuss the intergalactic propagation of ultra-high-energy cosmic rays (UHECRs) with energies E \geq 10^{18.5} eV. We consider the propagation of UHECRs under the influence of t…
astro-ph1999
Outflows from magnetic rotators II. Asymptotic structure and collimation
Thibaut Lery, J. Heyvaerts, S. Appl +1
The asymptotic structure of outflows from rotating magnetized objects confined by a uniform external pressure is calculated. The flow is assumed to be perfect MHD, polytropic, axis…