Disc wind in the HH 30 binary models

Abstract

Recent interferometric observations of the young stellar object(YSO) HH 30 have revealed a low velocity outflow in the ${}^{12}$CO J=1-2 molecule line (Pety et al. 2006). We present here two models of the low velocity disc winds with the aim of investigating an origin of this molecular outflow. Following Andlada et al. (2006) we treated HH 30 as a binary system. Two cases have been considered: i) the orbital period $P$ = 53 yrs and ii) $P\le$ 1 yr. Calculations showed that in the first case the outflow cone had a spiral-like structure due to summing the velocities of the orbital motion and the disc wind. Such a structure contradicts the observations. In the second case, the outflow cone demonstrates a symmetry relatively to the system axis and agrees well with the observations.

5 pages, 4 figures. accepted by Mon. Not. R. Astron. Soc

References in corpus (6)

• Which jet launching mechanism(s) in TTauri stars?
• The Spectral Energy Distribution of HH30 IRS: Constraining The Circumstellar Dust Size Distribution
• High-resolution Near-Infrared Images and Models of the Circumstellar Disk in HH 30
• Plateau de Bure Interferometer Observations of the Disk and Outflow of HH30
• Proper Motions of the Jets in the Region of HH 30 and HL/XZ Tau. Evidence for a Binary Exciting Source of the HH 30 Jet
• Optical Variability of the T Tauri Star HH30

Cited by in corpus (5)

• The HH30 edge-on T Tauri star A rotating and precessing monopolar outflow scrutinized by ALMA
• The circumstellar disk of HH 30. Searching for signs of disk evolution with multi-wavelength modeling
• Structures in circumbinary disks: Prospects for observability
• Binary outflows from young stars: interaction of co-orbital jet and wind
• The nature of a primary jet within a circumbinary disc outflow in a young stellar system