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Comparative Analysis of Physical Conditions in the Solar and Procyon Atmospheres

Published online by Cambridge University Press:  08 February 2017

I.N. Atroshchenko ,
A.S. Gadun ,
R.I. Kostik  and
K.N. Pikalov
I.N. Atroshchenko
Affiliation:
Main Astronomical Observatory Academy of Sciences of the Ukrainian SSR 252127, Kiev, USSR
A.S. Gadun
Affiliation:
Main Astronomical Observatory Academy of Sciences of the Ukrainian SSR 252127, Kiev, USSR
R.I. Kostik
Affiliation:
Main Astronomical Observatory Academy of Sciences of the Ukrainian SSR 252127, Kiev, USSR
K.N. Pikalov
Affiliation:
Main Astronomical Observatory Academy of Sciences of the Ukrainian SSR 252127, Kiev, USSR

Abstract

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An analysis is made of the velocity field determined from spectral absorption line profiles as well as inhomogeneous element sizes obtained from stochastic theory. The results of three-dimensional simulations of convective motions in the photospheres of the Sun and Procyon are presented. It is concluded that penetrative convection covers a considerable fraction of the Procyon photosphere.

Type
VII. Convection and Magnetic Fields in Solar-type Stars
Information
Symposium - International Astronomical Union , Volume 138: Solar Photosphere: Structure, Convection and Magnetic Fields , 1990 , pp. 421 - 425
Copyright
Copyright © Kluwer 1990 

References

Atroshchenko, I.N., Gadun, A.S., Kostik, R.I. (1989a) Solar and Stellar Granulation , NATO ASI Series C 263, 135.CrossRefGoogle Scholar
Atroshchenko, I.N., Gadun, A.S., Kostik, R.I. (1989b) Solar and Stellar Granulation , NATO ASI Series C 263, 521.CrossRefGoogle Scholar
Gadun, A.S. (1986) Preprint ITP of Ac. Sc. Ukr. SSR, ITP-86-106R, Kiev.Google Scholar
Gadun, A.S., Sheminova, V.A. (1988) ‘SPANSAT: Program for LTE Calculations of Absorbtion Line Profiles in Stellar Atmospheres’, Preprint ITP-88-87R, Kiev.Google Scholar
Griffin, R., Griffin, R. (1979) A Photometric Atlas of the Spectrum of Procyon 3140 − 7470 Å, Cambridge, UK.Google Scholar
Gurtovenko, E.A., Kostik, R.I. (1989) Fraunhoferov Spektr i Sistema Sil Oscillatorov 44, Kiev.Google Scholar
Holweger, H., Müller, E.A. (1974) Solar Phys. 39, 19.CrossRefGoogle Scholar
Kurucz, R.L., Furenlid, I., Brault, J., Testerman, L. (1984), Solar Flux Atlas from 290 to 1300 nm , Harvard University.Google Scholar
Mackle, R., Griffin, R., Griffin, R., Holweger, H. (1975) Astron. Astrophys. Suppl. Ser. 19, 303.Google Scholar
Steffen, M. (1985) Astron. Astrophys. Suppl. Ser. 59, 403.Google Scholar