SIMBAD references

2005ApJ...625L.131D - Astrophys. J., 625, L131-L134 (2005/June-1)

A hot wind from the classical T Tauri stars: TW Hydrae and T Tauri.


Abstract (from CDS):

Spectroscopy of the infrared He I (10830 Å) line with NIRSPEC on Keck and CSHELL at the IRTF, and of the ultraviolet C III (977 Å) and O VI (1032 Å) emission with FUSE, reveals that the classical T Tauri star TW Hydrae exhibits P Cygni profiles, line asymmetries, and absorption indicative of a continuous, fast (∼400 km/s), hot (∼300,000 K) accelerating outflow with a mass-loss rate ∼10–11 to 10–12 M/yr or larger. Spectra of T Tau N appear consistent with such a wind. The source of the emission and outflow seems restricted to the stars themselves. Although the mass accretion rate is an order of magnitude less for TW Hya than for T Tau, the outflow reaches higher velocities at chromospheric temperatures in TW Hya. Winds from young stellar objects may be substantially hotter and faster than previously thought.

Abstract Copyright:

Journal keyword(s): Infrared: Stars - Stars: Individual: Constellation Name: TW Hydrae - Stars: Individual: Constellation Name: T Tauri - Stars: Pre-Main-Sequence - Stars: Winds, Outflows - Ultraviolet: Stars

Simbad objects: 6

goto Full paper

goto View the reference in ADS

To bookmark this query, right click on this link: simbad:2005ApJ...625L.131D and select 'bookmark this link' or equivalent in the popup menu


© Université de Strasbourg/CNRS

    • Contact