Accretion disks around T Tauri stars

Journal Article · Fri Jul 01 04:00:00 EDT 1988 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/166476· OSTI ID:7068280

Bertout, C; Basri, G; Bouvier, J

The extent to which the continuum spectral energy distributions of T Tauri stars from 0.2 to 10 microns can be explained by a simple model consisting of an active PMS star and active accretion disk is considered. The disk contributes both an IR excess due to accretion energy dissipation and stellar light reprocessing and an ultraviolet excess from the boundary layer between disk and star where half of the total accretion luminosity is generated. This model is shown to be good at predicting the range of continuum excesses observed in T Tauri stars, with accretion rates implied up to a few times 10 to the -7th solar mass/yr. 83 references.

• Research Organization: California Univ., Berkeley (USA); CNRS, Institut d'Astrophysique, Paris (France)
• OSTI ID: 7068280
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 330; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACCRETION DISKS
ATMOSPHERES
BALMER LINES
BOUNDARY LAYERS
CHROMOSPHERE
ELECTROMAGNETIC RADIATION
ENERGY LOSSES
ENERGY SPECTRA
ERUPTIVE VARIABLE STARS
FLUID FLOW
INFRARED RADIATION
LAYERS
LOSSES
MATHEMATICAL MODELS
RADIATIONS
REYNOLDS NUMBER
SOLAR ATMOSPHERE
SPECTRA
STAR ACCRETION
STAR EVOLUTION
STAR MODELS
STARS
STELLAR RADIATION
T TAURI STARS
TURBULENT FLOW
ULTRAVIOLET RADIATION
VARIABLE STARS
VISCOUS FLOW