Accession Number : ADA274159

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

Descriptive Note : Final rept. 1 Nov 92-31 Oct 93,

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

Personal Author(s) : Goode, Philip R.

Report Date : 31 OCT 1993

Pagination or Media Count : 18

Abstract : A new set of observations has been made of the intensity and Doppler shift in the 543.4nm Fel line consisting of 356 spatial points in a row 1024 arc seconds long. For these observations new data acquisition software and new data reduction routines were developed. Wave number versus frequency diagrams have been obtained at several altitudes in the photosphere. It has been shown that the changes in the sun's internal rotation over the sun's activity cycle occurs just above the base of the convection zone. A seismic method has been developed to directly determine the sun's internal angular momentum and seismic limits have been placed on the sun's internal magnetic field.

Descriptors :   *SUN, *SOLAR ACTIVITY, ALTITUDE, ANGULAR MOMENTUM, CONVECTION, DATA ACQUISITION, DATA REDUCTION, DIAGRAMS, FREQUENCY, INTENSITY, MAGNETIC FIELDS, MOMENTUM, OBSERVATION, PHOTOSPHERE, ROTATION, COMPUTER PROGRAMS, SEISMIC DATA, SOLAR ORBITS, SOLAR CYCLE.

Subject Categories : Astronomy
      Astrophysics

Distribution Statement : APPROVED FOR PUBLIC RELEASE