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The effect of opacity on the evolution of giant planets

Published online by Cambridge University Press:  10 November 2011

Allona Vazan ,
Attay Kovetz  and
Morris Podolak
Allona Vazan
Affiliation:
Department of Geophysics and Planetary Sciences, Sackler Faculty of Exact Sciences, Tel Aviv University, Israel
Attay Kovetz
Affiliation:
Department of Geophysics and Planetary Sciences, Sackler Faculty of Exact Sciences, Tel Aviv University, Israel School of Physics and Astronomy, Sackler Faculty of Exact Sciences, Tel Aviv University, Israel email: allonava@post.tau.ac.il
Morris Podolak
Affiliation:
Department of Geophysics and Planetary Sciences, Sackler Faculty of Exact Sciences, Tel Aviv University, Israel
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Abstract

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We use an improved version of the planetary evolution code described in Helled et al. (2006) to model the effect of opacity on the evolution of giant planets in the disk instability scenario. We find that changing the opacity law can cause significant changes in the evolutionary path of a protoplanet. Sufficiently high opacities cause oscillatory behavior that delays the final collapse. Peak luminosities just before collapse can exceed 10−5L⊙.

Keywords

planets and satellites: formationinstabilities
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S276: The Astrophysics of Planetary Systems: Formation, Structure, and Dynamical Evolution , October 2010 , pp. 461 - 462
Copyright
Copyright © International Astronomical Union 2011

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