Accession Number : AD0743294

Title :   Observations of the solar Oscillatory Component at a Wavelength of 3 mm.

Descriptive Note : Rept. for Sep 69-May 70,

Corporate Author : AEROSPACE CORP EL SEGUNDO CALIF LAB OPERATIONS

Personal Author(s) : Shimabukuro,Fred I. ; Simon,Michal

Report Date : 17 APR 1972

Pagination or Media Count : 19

Abstract : The solar oscillatory component has been observed at a wavelength of 3 mm by its modulation of the solar free-free emission. Observations were carried out separately at 3.3 and 3.5 mm with two different radio telescopes to rule out possible instrumental and atmospheric effects. Power spectra of the data show that the strongest spectral component is at 0.0055 Hz (period: 180 sec). These observations indicate that it is possible, by radio techniques, to extend observations of the solar oscillatory component to geater heights in the solar atmosphere than those previously observed in photospheric and low chromospheric spectral lines. (Author)

Descriptors :   (*SOLAR RADIATION, MILLIMETER WAVES), EXTRATERRESTRIAL RADIO WAVES, CHROMOSPHERE, SOLAR CORONA, POWER SPECTRA, OSCILLATION

Subject Categories : Astrophysics

Distribution Statement : APPROVED FOR PUBLIC RELEASE