Sensitivity of p modes for constraining velocities of microscopic diffusion of the elements

Details Sensitivity of p modes for constraining velocities of microscopic diffusion of the elements Sensitivity of p modes for constraining velocities of microscopic diffusion of the elements

2008-10-15

arxiv.org/abs/0810.2652v2

2009ASPC..416..273C

Astronomy and Astrophysics

Astrophysics

4 pages, poster presentation: GONG 2008/SOHO XXI: Solar-stellar dynamos as revealed by helio- and asteroseismology, August 200

Scientific paper

Conventional astrophysical observations have failed to provide stringent constraints on physical processes operating in the interior of the stars. However, satellite missions now promise a solution to these problems by providing long-term high-quality continuous data which will allow the application of seismic techniques. With this in mind, and using the Sun as our astrophysical laboratory, our aim is to determine if Corot- and Kepler-like asteroseismic data can constrain physical processes like microscopic diffusion. We test to what extent can the observed atmospheric abundances coupled with p-mode frequencies safely distinguish between stellar initial chemical composition and diffusion of these elements. We present some preliminary results of our analysis.

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