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Problems of Solar Convection

Published online by Cambridge University Press:  19 July 2016

Wasaburo Unno
Wasaburo Unno*
Affiliation:
Research Institute for Science and Technology Kinki University 3-4-1 Kowakae, Higashi-Osaka-city, 577 Osaka Japan

Abstract

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Kinetic energy of convection is transported inwards in the main body of convection zone. The temperature gradient becomes super-radiative at the top of the overshooting zone. These two effects make the solar equilibrium model much less sensitive to the assumed mixing length in Xiong's eddy diffusion theory. Observed brightening of downflow at high level in the surface region over intergranular lanes seems to be consistent with the overshooting model. Momentum transport by convective motion is shown to be crucial in pushing down magnetic flux tubes against buoyancy. Also, subadiabatic layers are possibly formed temporarily in the middle of the convection zone, exciting oscillations and generating chaotic motions.

Type
II. The Solar Interior
Information
Symposium - International Astronomical Union , Volume 142: Basic Plasma Processes on the Sun , 1990 , pp. 39 - 44
Copyright
Copyright © Kluwer 1990 

References

1. Antia, H.M, Chitre, S.M. and Pandey, S.K.: 1981, Solar phys. , 70, 67.Google Scholar
2. Chan, K.L. and Sofia, S., 1986, Astrophys. J , 307, 222.CrossRefGoogle Scholar
3. Glatzmaier, G.A.: 1987, The Internal Sol. Ang. Vel. , eds. Durney, B. R. and Sofia, S., (D. Reidel Pub. Co.), p. 233.Google Scholar
4. Hurlbert, N.E., Toomre, J., and Massaguer, J.M., 1984, Astrophys. J. , 282, 557.Google Scholar
5. Herring, J.R.: 1963, J. Atmos. Sci. , 20, 325.Google Scholar
6. Kondo, M.-A., and Unno, W.: 1982, Geophys. Astrophys. Fluid Dynamics , 22, 305.Google Scholar
7. Kondo, M.-A., and Unno, W.: 1983, Geophys. Astrophys. Fluid Dynamics , 27, 229.Google Scholar
8. Lopez, J.M. and Murphy, J.O.: 1985, Monash University Preprint.Google Scholar
9. Nakano, T., Fukushima, T., Unno, W. and Kondo, M.: 1979, Publ. Astron. Soc. Japan, 31, 713.Google Scholar
10. Narashimha, D., and Antia, H.M.: 1982, Astrophys. J. , 262, 358.Google Scholar
11. Nordlund, A., 1978, Astron. Papers dedicated to B. Strömgren, eds. Reiz, A. and Andersen, T., Copenhagen Univ. Obs., Copenhagen.Google Scholar
12. Roxburg, I.A.: 1978, Astron. Astrophys. 65, 281 Google Scholar
13. Ribes, E. and Unno, U.: 1976, Astron. Astrophys. , 53, 197.Google Scholar
14. Rudraiah, N., Kumudini, V., and Unno, W.: 1987, Publ. Astron. Soc. Japan , 37, 183.Google Scholar
15. Simon, G.W., Title, A.M., Topka, K.P., Tarbell, T.D., Shine, R.A., and Ferguson, S.H.: 1988, Astrophys. J. , 327, 964.Google Scholar
16. Suemoto, Z., Hiei, E., and Nakagomi, Y.: 1987, Solar Phys. , 112, 59.CrossRefGoogle Scholar
17. Suemoto, Z., Hiei, E., and Nakagomi, Y.: 1989, Preprint.Google Scholar
18. Unno, W., Kondo, M.-A. and Xiong, D.R.: 1985, Publ. Astron. Soc. Japan , 37 197.Google Scholar
19. Unno, W., and Kondo, M.-A, 1989, Publ. Astron. Soc. Jap. , 41, 197.Google Scholar
20. Urata, K., 1987: Prog. Fluid Mech. , 2, 150.Google Scholar
21. Vitense, E.: 1953, Z. Astrophys. , 32, 135.Google Scholar
22. Xiong, D.R.: 1979, Acta Astron. Sinica , 20, 238., [= Chines Astron., 4, 234, 1980] Google Scholar
23. Yanaguchi, S.: 1985, Publ. Astron. Soc. Japan , 37, 735.Google Scholar