Accession Number : ADA259788


Title :   Observation of Impulsive Acoustic Events and the Excitation of Solar Oscillations


Descriptive Note : Annual rept. 1 Nov 1991-31 Oct 1992


Corporate Author : NEW JERSEY INST OF TECH NEWARK DEPT OF PHYSICS


Personal Author(s) : Restaino, Sergio R ; Stebbins, Robin T ; Goode, Philip R


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a259788.pdf


Report Date : 04 Dec 1992


Pagination or Media Count : 14


Abstract : The five-minute solar oscillation has been exploited in numerous seismic studies in which internal properties of the Sun have been inferred. It is generally regarded that these modes are excited by turbulent convection in the Sun's outermost layers. We observe the oscillatory wakes caused by impulsive events, matching those described by Lamb (1909). These correspond to the events modeled by Goode, et al., which they associate with excitation of the global five-minute oscillations.


Descriptors :   *ACOUSTIC WAVES , *ATMOSPHERIC MOTION , *OSCILLATION , *SOLAR DISTURBANCES , EXCITATION , CONVECTION(ATMOSPHERIC) , SUN , WAKE , WAVE PROPAGATION , TURBULENCE


Subject Categories : Astrophysics
      Acoustics


Distribution Statement : APPROVED FOR PUBLIC RELEASE