Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984ap%26ss.106..265d&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 106, no. 2, Nov. 1984, p. 265-272.
Astronomy and Astrophysics
Astrophysics
6
Solar Oscillations, Solar Rotation, Solar Temperature, Group Velocity, Solar Magnetic Field, Temperature Effects, Wave Dispersion
Scientific paper
A theoretical investigation is undertaken of the group travel-time for the Sun's pulses to travel from the source of the pulse to the solar surface. The expression for the group travel time gives two terms: the term arising from the linear theory which varies inversely to (2Ω-ω)1/2 and the term introduced by the thermal effect which is inversely proportional to (2Ω-ω)7/2. The thermal effect variation has been shown and an estimation of the temperature of the medium has been made. Furthermore, the velocity distribution and the amplitude of the magnetic field of the wave, arising from the damping of ionized particles, have been calculated.
Das G. C.
Karmakar Biswajit
Sarkar Sourav
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