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Proceedings Paper

Adaptive optics observations of molecular hydrogen toward T Tauri
Author(s): Andreas Quirrenbach; Hans Zinnecker
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Paper Abstract

We present images of the (v= 1 — 0) S(1) transition of molecular hydrogen at 2.121 µm towards T Tauri, observed with the SHARP II camera attached to the ADONIS adaptive optics system at the European Southern Observatory’s 3.6 m telescope on La Silla, Chile. With an image scale of 0"1 per pixel, we could cover a field of 25" in each exposure. Positioning T Tauri successively in the four quadrants of the detector, we obtained a 35" mosaic centered on the star. In the 2.12 µm continuum, the 0"7 binary is easily resolved. In continuum-subtracted images in the emission line, we detect a very complex structure: strong emission at the position of the infrared companion, a very bright knot 2-3" northwest, three thin filaments, strong emission extending 10" south towards Burnham’s nebula, and a faint arc 10" north. While the material north and south of the stars may be associated with an outflow, we argue that the knots and filaments may be shock-excited material in the equatorial plane. They could be either tidal tails caused by the interaction of the two star-disk systems (T Tau N and T Tau S), accretion streams from the inner edge of the circumbinary disk, or spiral shocks in this disk.

Paper Details

Date Published: 17 October 1997
PDF: 8 pages
Proc. SPIE 3126, Adaptive Optics and Applications, (17 October 1997); doi: 10.1117/12.279043
Show Author Affiliations
Andreas Quirrenbach, Max-Planck-Institut fuer Extraterrestrische Physik (Germany)
Hans Zinnecker, Astrophysikalisches Institut Potsdam (Germany)

Published in SPIE Proceedings Vol. 3126:
Adaptive Optics and Applications
Robert K. Tyson; Robert Q. Fugate, Editor(s)

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