Protoplanetary dynamics – I. Dynamical modes of isothermal protoplanets

Authors

  • B. Pečnik,

    Corresponding author
    1. Astrophysikalisches Institut und Universitäts-Sternwarte, 07745 Jena, Germany
    2. Max-Planck-Institut für extraterrestrishe Physik, Postfach 1312, 85748 Garching, Germany
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  • G. Wuchterl

    Corresponding author
    1. Astrophysikalisches Institut und Universitäts-Sternwarte, 07745 Jena, Germany
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Present address: Faculty of Natural Sciences and Kinesiology, University of Split, 21000 Split, Croatia.

E-mail: bonnie@pmfst.hr

Present address: Thüringer Landessternwarte Tautenburg, 07778 Tautenburg, Germany.

ABSTRACT

This paper is the first in a series of publications which investigate the stability properties of the complete set of isothermal protoplanetary equilibrium solutions. To perform a non-linear stability analysis, we introduce a fluid dynamics numerical model. We inspect the entire solution set and find five basic dynamical modes: oscillation, pulsation, transition, ejection and collapse.

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