Wave Excitation in Isothermal Disks by External Gravity

Details Wave Excitation in Isothermal Disks by External Gravity Wave Excitation in Isothermal Disks by External Gravity

Feb 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998pasj...50..141t&link_type=abstract

Publications of the Astronomical Society of Japan, v.50, p.141-148.

Astronomy and Astrophysics

Astronomy

11

Accretion, Accretion Disks, Hydrodynamics, Planets: Formation

Scientific paper

Wave excitation in isothermal disks with finite thickness by external gravity is investigated. The main application of this study is to clarify the process of angular-momentum transfer in a protoplanetary disk by a protoplanet. It is found that waves with vertical motion (3D-waves) as well as waves without vertical motion (2D-waves) are excited, and that both waves can transfer angular-momentum. The 2D-waves have properties similar to the waves in infinitesimally thin disks. A protoplanet on the central plane of the disk excites mainly 2D-waves. On the other hand, 3D-waves have a minor effect on the angular-momentum transfer.

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