Wave propagation in gaseous accretion disks

Details Wave propagation in gaseous accretion disks Wave propagation in gaseous accretion disks

Nov 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...364..326l&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 364, Nov. 20, 1990, p. 326-334. Research supported by NATO and University o

Astronomy and Astrophysics

Astrophysics

65

Accretion Disks, Planetary Systems, Stellar Atmospheres, Wave Propagation, Angular Momentum, Astronomical Models, Extrasolar Planets, Planetary Evolution, Wave Equations

Scientific paper

Linear wave propagation is studied in geometrically thin accretion disks where the equilibrium variables, such as density and temperature, are stratified in the direction normal to the plane of the disk, i.e., the vertical direction. Temperature stratification causes refraction such that initially radially propagating waves are deflected in the vertical direction. For moderate temperature contrast between the disk's midplane and its surface, wave transmission into the tenuous upper atmosphere is allowed. In typical astrophysical accretion disks, these two effects inhibit wave propagation through large distances in the radial direction.

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