Wind-disk shocks around T Tauri stars

Journal Article · Wed Feb 01 04:00:00 EST 1989 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/167160· OSTI ID:6063973

Hartmann, L; Raymond, J C

It is suggested that the winds of T Tauri stars are heated at distances of 50-100 AU by oblique shocks with circumstellar disks, producing the observed high-velocity forbidden-line emission. The low shock velocities characteristic of this model provide low-excitation emission and line profiles in reasonable agreement with observations. The blueshifted character of the observed emission is explained by a combination of disk occultation of the receding flow, plus a modest collimation of the observable wind by the disk envelope. Instabilities at the wind-disk interface may be important in producing the observed emission. 52 references.

• Research Organization: Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (USA); Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (USA)
• OSTI ID: 6063973
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 337; 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
EMISSION SPECTRA
ENERGY-LEVEL TRANSITIONS
ERUPTIVE VARIABLE STARS
FLUID MECHANICS
FORBIDDEN TRANSITIONS
HEATING
HYDRODYNAMICS
MAGNETOHYDRODYNAMICS
MATHEMATICAL MODELS
MECHANICS
SHOCK WAVES
SPECTRA
STABILITY
STAR MODELS
STARS
STELLAR ACTIVITY
STELLAR WINDS
T TAURI STARS
VARIABLE STARS