Downloads: 97
Research Paper | Astronomy Science | India | Volume 3 Issue 7, July 2014
Solar Dynamo Model
Abstract: Sunspots shows vortex structure & are approximated by SLVs (single layered vortices) at solar minima & MLVs (multi layered vortices) at solar maxima. Rolling magneto convection and rotation assosciated with the sunspot vortex is responsible for the dynamo action in it. The sunspot vortices in growing or decaying stage participate in meridonal circulations while moving in magnetically quantised solar latitudinal belts. This results in net variation in solar magnetic field and thus solar minima and maxima. The sun spot area (SSA, ie visible area of sunspot on photosphere) shows delay with respect to composite total solar irradiance (CTSI). Solar magnetic field (B) is cause of delay. Delay is maximum at solar minima & minimum at solar maxima. Poloidal component of magnetic field (BP) delays while toroidal component of magnetic field (BT) enhances the solar energy transportation. Over a period of 3 solar cycles, the analysis shows that wrt CTSI, SSA shows a delays of 13.5 days at solar maxima and 230 days at solar minima.
Keywords: sun, rolling magneto convection & solar dynamo, SLV, MLV, sunspot, delay
Edition: Volume 3 Issue 7, July 2014,
Pages: 821 - 825
Similar Articles with Keyword 'sun'
Downloads: 2 | Weekly Hits: ⮙1 | Monthly Hits: ⮙1
Research Paper, Astronomy Science, India, Volume 11 Issue 1, January 2022
Pages: 1419 - 1423Sidereal Day without Polar Star "A Complete Solution with an Otherwise Explanation"
Downloads: 98
Research Paper, Astronomy Science, India, Volume 9 Issue 10, October 2020
Pages: 596 - 596Coiled Circular Motion of Sun and Earth
Virendra Pal Singh