Accession Number : AD0727145

Title :   Extragalactic Radio Sources.

Descriptive Note : Final rept.,

Corporate Author : STANFORD UNIV CALIF INST FOR PLASMA RESEARCH

Personal Author(s) : Mills,David M.

Report Date : 03 MAY 1971

Pagination or Media Count : 83

Abstract : Extragalactic radio sources are usually double, with the two components, or radio 'clouds', located at distances (s) up to several hundred kiloparsecs from the nucleus of the parent object (galaxy or quasar). These clouds are apparently generated in an explosive event occuring in or near to the nucleus, and then ejected in opposite directions. However, recent high-resolution observations lead to the conclusion that the ejection velocity is typically small (V less than or about 0.1 c) while the minimum internal pressure is quite high (equivalent to about .0001 gauss). In addition, the cloud size (w) is often quite small compared to the distance traveled (w/s about 0.05 - 0.30). The cloud must therefore be confined in some manner. (Author)

Descriptors :   (*EXTRATERRESTRIAL RADIO WAVES, INTERSTELLAR MATTER), RADIO SIGNALS, POWER SPECTRA, POLARIZATION, THERMAL PROPERTIES, MAGNETIC FIELDS, MATHEMATICAL MODELS

Subject Categories : Astrophysics

Distribution Statement : APPROVED FOR PUBLIC RELEASE