About a mechanism of the short period 160-min radial pulsations of Sun

Details About a mechanism of the short period 160-min radial pulsations of Sun About a mechanism of the short period 160-min radial pulsations of Sun

2009-12-07

arxiv.org/abs/0912.1211v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

5 pages + 1 figure Scientific conference with international participation. Stara Zagora. 2005

Scientific paper

The visible diameter of Sun oscilates with a period of 160 min. The same type of periodicity is also found in a huge number of solar radiation parameters. To elucidate the origin of these longitudinal radial pulsations we have used the equation for the equilibrium of inner layers which, after linearization, turned into the harmonic oscilator equation. The latter equation allows radial pulsations whose period and wave length were calculated using regresion expresions for the gas presure and density in various layers. The radial pulsations originate at the surface of active zone and propagate til the litosphere, where they undergo full inner reflection producing undersurface stationary waves with a period of 150-160 min.

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