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A Subarcsecond Companion to the T Tauri Star AS 353B

Authors :
Hiroshi Terada
Masahiko Hayashi
Shin Oya
Alan T. Tokunaga
Wolfgang Gaessler
D. Saint-Jacques
Hideki Takami
Yutaka Hayano
Naoto Kobayashi
Tae-Soo Pyo
Yukiko Kamata
Bo Reipurth
Yosuke Minowa
Masanori Iye
Tomio Kanzawa
Naruhisa Takato
Ko Nedachi
Publication Year :
2003

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.<br />AASTeXv5.0, 21 pages, 5 figures, Astronomical Journal, in press

Details

Language :
English
Database :
OpenAIRE
Accession number :
edsair.doi.dedup.....10b58d3ff95c5e0663bc461d68fe1d97