Wind-disk shocks around T Tauri stars

Details Wind-disk shocks around T Tauri stars Wind-disk shocks around T Tauri stars

Feb 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...337..903h&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 337, Feb. 15, 1989, p. 903-916.

Astronomy and Astrophysics

Astrophysics

63

Forbidden Transitions, Shock Waves, Stellar Winds, T Tauri Stars, Magnetohydrodynamic Stability, Stellar Envelopes, Stellar Models

Scientific paper

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.

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