NACO Polarimetric Differential Imaging of TW Hya: A Sharp Look at the Closest T Tauri Disk

Details NACO Polarimetric Differential Imaging of TW Hya: A Sharp Look at the Closest T Tauri Disk NACO Polarimetric Differential Imaging of TW Hya: A Sharp Look at the Closest T Tauri Disk

2003-11-08

arxiv.org/abs/astro-ph/0311194v1

Astron.Astrophys. 415 (2004) 671-676

Astronomy and Astrophysics

Astrophysics

Accepted for publication in Astronomy & Astrophysics; 7 pages, 7 figures

Scientific paper

10.1051/0004-6361:20034549

We present high-contrast imaging data on the disk of the classical T Tauri star TW Hya. The images were obtained through the polarimetric differential imaging technique with the adaptive optics system NACO. Our commissioning data show the presence of polarized disk emission between 0.1" and 1.4" from the star. We derive the first Ks-band radial polarized intensity distribution. We show that the polarized intensity compares well to shorter wavelengths surface brightness observations and confirm the previously reported gradual slope change around 0.8". These results show the potential of the new polarimetric differential imaging technique at 8m-class telescopes to map the inner regions of protoplanetary disks.

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