The "solar nebula" around T Cha: Olofsson et al. and Huelamo et al. (Olofsson et al.)
Thursday, 24 February 2011 08:51
In section 1. Letters
Warm dust resolved in the cold disk around T Chamaeleontis with VLTI/AMBER
A companion candidate in the gap of the T Chamaeleontis transitional disk
Catching planets in the act of formation is the motivation driving
many studies of the disks around young T Tauri stars. The studies by
Olofsson et al. and by Huelamo et al. of the "solar nebula"
surrounding T Cha that are highlighted in this volume are an example
of how progress in this direction is being made. Olofsson et al. have
used AMBER VLTI observations to prove that there is an optically thick
inner ring at a distance of roughly 0.1 AU from the star and a "gap"
at larger radii (out to 7.5 AU) that generally agrees with earlier
work. Huelamo et al. used adaptive optics at 3.8 microns with the VLT
to show evidence for a companion at 6.7 AU. The candidate companion is
intriguingly red, which suggests that it is enshrouded in dust and very young.
Figure taken from Olofsson et al.