On the alignment of classical T Tauri stars with the magnetic field in the Taurus-Auriga molecular cloud

Details On the alignment of classical T Tauri stars with the magnetic field in the Taurus-Auriga molecular cloud On the alignment of classical T Tauri stars with the magnetic field in the Taurus-Auriga molecular cloud

2004-07-05

arxiv.org/abs/astro-ph/0407075v1

Astronomy and Astrophysics

Astrophysics

9 pages, 4 figures, accepted for publication in Astronomy and Astrophysics (also available on our team site at http://www-la

Scientific paper

10.1051/0004-6361:20041338

In this paper we readdress the issue of the alignment of Classical T Tauri stars with the magnetic field in the Taurus-Auriga molecular cloud. Previous studies have claimed that the jet axis of active young stellar objects, projected in the plane of the sky, is aligned preferentially along the projected direction of the local magnetic field. We re-examine this issue in view of the numerous high angular resolution images of circumstellar disks and micro-jets now available. The images show that T Tauri stars as a group are oriented randomly with respect to the local magnetic field, contrary to previous claims. This indicates that the magnetic field may play a lesser role in the final stages of collapse of an individual prestellar core than previously envisioned. The current database also suggests that a subsample of CTTS with resolved disks but without observations of bright and extended outflows have a tendency to align perpendicularly to the magnetic field. We discuss the possibility that this may trace a less favorable topology, e.g., quadrupolar, for the magnetic field in the inner disk, resulting in a weaker collimated outflow.

Affiliated with

Also associated with

No associations

Rating

On the alignment of classical T Tauri stars with the magnetic field in the Taurus-Auriga molecular cloud does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with On the alignment of classical T Tauri stars with the magnetic field in the Taurus-Auriga molecular cloud, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the alignment of classical T Tauri stars with the magnetic field in the Taurus-Auriga molecular cloud will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-72456