A Subarcsecond Companion to the T Tauri Star AS 353B
Astrophysics
2009-11-10 v1
Abstract
Adaptive optics imaging of the bright visual T Tauri binary AS 353 with the Subaru Telescope shows that it is a hierarchical triple system. The secondary component, located 5.6" south of AS 353A, is resolved into a subarcsecond binary, AS 353Ba and Bb, separated by 0.24". Resolved spectroscopy of the two close components shows that both have nearly identical spectral types of about M1.5. Whereas AS 353A and Ba show clear evidence for an infrared excess, AS 353Bb does not. We discuss the possible role of multiplicity in launching the large Herbig-Haro flow associated with AS 353A.
Cite
@article{arxiv.astro-ph/0310170,
title = {A Subarcsecond Companion to the T Tauri Star AS 353B},
author = {A. T. Tokunaga and Bo Reipurth and W. Gaessler and Yutaka Hayano and Masahiko Hayashi and Masanori Iye and Tomio Kanzawa and Naoto Kobayashi and Yukiko Kamata and Yosuke Minowa and Ko Nedachi and Shin Oya and Tae-Soo Pyo and D. Saint-Jacques and Hiroshi Terada and Hideki Takami and Naruhisa Takato},
journal= {arXiv preprint arXiv:astro-ph/0310170},
year = {2009}
}
Comments
AASTeXv5.0, 21 pages, 5 figures, Astronomical Journal, in press