Accession Number : ADA115672

Title :   Structure of the Solar Oscillation with Period Near 160 Minutes,

Corporate Author : STANFORD UNIV CA INST FOR PLASMA RESEARCH

Personal Author(s) : Scherrer,Philip H ; Wilcox,John M

PDF Url : ADA115672

Report Date : Feb 1982

Pagination or Media Count : 17

Abstract : The solar oscillation with period near 160 minutes is found to be unique in a spectrum computed over the range of periods from about 71 to 278 minutes. Our best estimate of the period is 160.0095 +/- 0.001 minutes, which is different from 160 minutes (1/9 of a day) by a highly significant amount. The width of the peak is approximately equal to the limiting resolution that can be obtained from an observation lasting 6 years, which suggests that the damping time of the oscillations is considerably longer than 6 years. A suggestion that this peak might be the result of a beating phenomenon between the five minute data averages and a solar oscillation with period near five minutes is shown to be incorrect by recomputing a portion of the spectrum using 15 second data averages. (Author)

Descriptors :   *Solar disturbances, Solar spectrum, Oscillation, Estimates, Periodic variations

Subject Categories : Astrophysics

Distribution Statement : APPROVED FOR PUBLIC RELEASE