The Temperature and Ionization of T-Tauri Micro-Jets

D. O'Brien, P. J. V. Garcia, J. Ferreira, S. Cabrit, L. Binette

Resumo
The effects of phenomenological heating functions on the flow thermodynamics of cold T-Tauri disk winds are examined. Turbulent dissipation (mechanical) heating and a warm disk corona are invoked to heat the wind. The temperature and ionization evolution are solved for along the flow. The results allow the construction of synthetic observations; emission maps, forbidden line ratios, line fluxes and line profiles; and successfully reproduce a number of observed trends. Mechanical heating produces line ratios and fluxes that fit very well with observations. Invoking a warm disk corona successfully reproduces forbidden line profile low velocity components.

Astrophysics and Space Science
Volume 292, Página 609
agosto 2004

DOI: 10.1023/B:ASTR.0000045067.82913.e0