Hostname: page-component-745bb68f8f-lrblm Total loading time: 0 Render date: 2025-01-24T06:43:04.977Z Has data issue: false hasContentIssue false
  • English
  • Français

The Influence of A Magnetic Field on Radiative Damping of Magnetoatmospheric Oscillations

Published online by Cambridge University Press:  08 February 2017

Dipankar Banerjee ,
S.S. Hasan  and
J. Christensen-Dalsgaard
Dipankar Banerjee
Affiliation:
Indian Institute of Astrophysics, Bangalore 560034, India. Armagh Observatory, Armagh, BT61 9DG, N. Ireland
S.S. Hasan
Affiliation:
Indian Institute of Astrophysics, Bangalore 560034, India
J. Christensen-Dalsgaard
Affiliation:
Teoretisk Astrofysik Center, Danmarks Grundforskningsfond Institut for Fysik og Astronomi, Aarhus Universitet, DK-8000 Aarhus C, Denmark

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We investigate the influence of a magnetic field on the radiative damping of magnetoatmospheric waves, extending our previous work on the adiabatic modes of an isothermal stratified atmosphere with a uniform vertical magnetic field. Banerjee, Hasan & Christensen-Dalsgaard (1996, 1997) generalized this work to include radiative effects using Newton's law of cooling for a weak magnetic field. The present study examines the variation of the mode damping rate with increasing magnetic field strength. We find that a moderate field suppresses radiative damping.

Keywords

MHDmagnetic fieldsatmosphereoscillations
Type
VII. The Solar Atmosphere
Information
Symposium - International Astronomical Union , Volume 185: New Eyes to See Inside the Sun and Stars , 1998 , pp. 423 - 426
Copyright
Copyright © Kluwer 1998 

References

Alisandrakis, T. E., Georgakilas, A. A., Dialetis, D., 1992, Solar Phys., 138, 93 Google Scholar
Banerjee, D., 1997, , Bangalore University, India Google Scholar
Banerjee, D., Hasan, S. S., Christensen-Dalsgaard, J., 1995, Astrophys. J. 451, 825 Google Scholar
Banerjee, D., Hasan, S. S., Christensen-Dalsgaard, J., 1996, Bull. Astron. Soc. India 24, 325 Google Scholar
Banerjee, D., Hasan, S. S., Christensen-Dalsgaard, J., 1997, Solar Phys., 172, 53 Google Scholar
Bünte, M., Bogdan, T. J., 1994, Astron. Astrophys. 283, 642 Google Scholar
Bogdan, T. J., Knölker, M., 1989, Astrophys. J. 339, 579 Google Scholar
Hasan, S. S., 1991, Astrophys. J. 366, 328 Google Scholar
Hasan, S. S. Christensen-Dalsgaard, J., 1992, Astrophys. J. 396, 311 Google Scholar
Horn, T., Staude, J., 1997, these proceedings .Google Scholar
Kentischer, T. J., Mattig, W., 1995, Astron. Astrophys. 300, 539 Google Scholar
Moore, R. L., Rabin, D., 1985, Ann. Rev. Astron. Astrophys. 23, 239 Google Scholar
Norton, A., Ulrich, R. K., Bogart, R. S., Bush, R. I., Hoeksema, J. T., 1997, these proceedings .Google Scholar
Stenflo, J. O., 1989, Astron. Astrophys. Rev 1, 3 Google Scholar
Thomas, J. H., Cram, L. E., Nye, A. H., 1984, Astrophys. J. 285, 368 Google Scholar
Thomas, J. H., Lites, B. W., Gurman, J. B., Ladd, E. F., 1987, Astrophys. J. 312, 457 Google Scholar
Wood, W. P., 1990, Mon. Not. Rol. Astr. Soc., 251, 427 Google Scholar
Wood, W. P., 1997, Sol. Phys., 173, 259 Google Scholar