Accession Number : AD0686037

Title :   THE CORRELATION OF SOLAR MICROWAVE AND SOFT X-RAY RADIATION. 2. THE BURST COMPONENT.

Descriptive Note : Progress rept.,

Corporate Author : IOWA UNIV IOWA CITY DEPT OF PHYSICS AND ASTRONOMY

Personal Author(s) : Wende,Charles D.

Report Date : MAR 1969

Pagination or Media Count : 57

Abstract : A study of the histories of solar flares observed at 2 cm at the North Liberty Radio Observatory of the University of Iowa and observed at x-ray wavelengths with Mariner V (2-9 A) and Explorers 33 and 35 (2-12 A) shows that 'post-burst increase' and 'gradual rise and fall' events are concurrent microwave and soft x-ray phenomena. Temperatures typically double during a flare. Of twenty cases studied, an F = 0.5 yielded a mean peak temperature of 4 million degrees Kelvin and a mean effective diameter of 32 arc seconds. (Author)

Descriptors :   (*SOLAR FLARES, EXTRATERRESTRIAL RADIO WAVES), EMISSIVITY, SOLAR RADIATION, PERIODIC VARIATIONS, MICROWAVES, TEMPERATURE, X RAYS, X RAY SPECTROSCOPY, RADIO TELESCOPES, INSTRUMENTATION, ASTRONOMICAL OBSERVATORIES

Subject Categories : Astrophysics

Distribution Statement : APPROVED FOR PUBLIC RELEASE