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Toward Consistent Models of Protoplanetary Discs

Published online by Cambridge University Press:  26 May 2016

Mauricio Reyes-Ruiz
Mauricio Reyes-Ruiz*
Affiliation:
Instituto de Astronomía, UNAM, Apdo. Postal 877, 22800 Ensenada, B.C., México

Abstract

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In this paper we present results on the effect of the vertical stratification of magnetic diffusivity, expected in current models of protoplanetary discs, on the development of the magnetorotational instability. Specifically, on the basis of a quasi-global, linear analysis we study the operation of the magnetorotational instability across the so-called dead zone of protoplanetary discs. Our results indicate that the predicted strong vertical diffusivity gradients can damp the instability in such regions. This suggests the necessity of a revision of current models for the structure and evolution of protoplanetary discs.

Type
Part IV: Protoplanetary and β Pic disks
Information
Symposium - International Astronomical Union , Volume 202: Planetary Systems in the Universe – Observation, Formation and Evolution , 2004 , pp. 359 - 361
Copyright
Copyright © Astronomical Society of the Pacific 2004 

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