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In Search of the Solar Cycle Variations of<i>p</i>‐Mode Frequencies Generated by Perturbations in the Solar Interior

Dean‐Yi ChouInstitute of Astronomy and Department of Physics, National Tsing Hua University, Hsinchu 30043, TaiwanA. SerebryanskiyInstitute of Astronomy, National Tsing Hua University, Hsinchu 30043, Taiwan; and Ulugh Beg Astronomical Institute, Tashkent, Uzbekistan

The Astrophysical Journaljournal2005en

ABI

Annotatsiya

Observations show that the solar p-mode frequencies change with the solar cycle. The horizontal-phase-velocity dependence of the relative frequency change, scaled by mode mass, provides depth information on the perturbation in the solar interior. We find that the smoothed scaled relative frequency change varies along the solar cycle for horizontal phase velocities higher than a critical value, which corresponds to a depth near the base of the convection zone. This phenomenon suggests that the physical conditions in a region near the base of the convection zone change with the solar cycle.

Mavzular

Solar and Space Plasma Dynamics Stellar, planetary, and galactic studies Astro and Planetary Science

Identifikatorlar

DOI: 10.1086/428925

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