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Chromospheric dynamics

Published online by Cambridge University Press:  25 May 2016

Robert J. Rutten
Robert J. Rutten*
Affiliation:
Sterrekundig Instituut Postbus 80 000, NL 3508 TA Utrecht, The Netherlands

Abstract

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This brief review advertises a breakthrough in solar dynamics: the identification of chromospheric Ca II K2V “grains” as manifestations of acoustic shocks. The successful numerical reproduction of the intricate spectral characteristics of K2V grain formation by Carlsson & Stein shows that the non-magnetic solar chromosphere is pervaded by outward traveling shocks to such extent that static modeling is no longer acceptable. Dynamical modeling should soon reconcile the long-standing Ca II/CO dichotomy. The chromospheric dynamics of the magnetized regions remains enigmatic.

Information

Type
Session IV: “Outer Atmospheric Structure”
Information
Symposium - International Astronomical Union , Volume 176: Stellar Surface Structure , 1996, pp. 385 - 392
Copyright
Copyright © Kluwer 1996 

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