Accretion disks around T Tauri stars

Details Accretion disks around T Tauri stars Accretion disks around T Tauri stars

Jul 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...330..350b&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 330, July 1, 1988, p. 350-373.

Astronomy and Astrophysics

Astrophysics

496

Accretion Disks, Pre-Main Sequence Stars, Spectral Energy Distribution, Stellar Radiation, Stellar Spectrophotometry, T Tauri Stars, Balmer Series, Boundary Layers, Chromosphere, Infrared Photometry, Interstellar Extinction, Reynolds Number, Turbulent Flow, Ultraviolet Photometry, Ultraviolet Radiation, Viscous Flow

Scientific paper

The authors examine the proposition that many T Tauri stars are still actively accreting material from a surrounding disk of material formed at the same time as the star. It is shown that the observations are both unified and explained if classical T Tauri stars are chromospherically active pre-main-sequence stars with accretion disks. Contemporaneous optical and ultraviolet observations, along with extensive photometric monitoring in the optical and infrared, are used to test disk models and to show that there is evidence for accretion in the range 5×10-8 - 5×10-7M_sun;yr-1 from stars exhibiting strong ultraviolet excesses. These models also explain the infrared spectrum shortward of 10 μm and the total system luminosities.

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