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Does solar structure vary with solar magnetic activity?

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arxiv astro-ph/0411427 v1 pith:DMWWXWFU submitted 2004-11-15 astro-ph

Does solar structure vary with solar magnetic activity?

classification astro-ph
keywords changessolaractivitychangegammamagneticstructureable
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We present evidence that solar structure changes with changes in solar activity. We find that the adiabatic index, Gamma_1, changes near the second helium ionization, i.e., at a depth of about 0.98 R_sun. We believe that this change is a result of the change in the effective equation of state caused by magnetic fields. Inversions should be able to detect the changes in Gamma_1 if mode sets with reliable and precise high-degree modes are available.

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Cited by 1 Pith paper

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  1. Asteroseismology of solar-type stars

    astro-ph.SR 2019-06 unverdicted novelty 2.0

    This review summarizes the development, techniques, and open questions in asteroseismology of solar-type stars whose oscillations are stochastically excited by surface convection.