title:  Subaru/COMICS view on star and planet formation
Author(s): Yoshiko K. Okamoto
           Hirokazu Kataza
           Mitsuhiko Honda
           Hideaki Fujiwara
           Takuya Fujiyoshi
           Takashi Miyata
           Takashi Onaka
           Shigeyuki Sako
           Itsuki Sakon
           Takuya Yamashita
Abstract:

Thanks to Subaru's high stability, COMICS observations stably achieve
0.3" (0.6") diffraction limited resolution with relatively high sensitivity
at 10 (20) micron band. By applying the COMICS' high performance to
not only simple imaging but also long-slit spectroscopy with
slit viewer capability, many stages and processes of star/planet
formation where mainly dust grains are related were revealed by COMICS.

In this talk, we review our recent results for on protoplanetary disks
and debris disks: disk structure, dust evolution, dust distribution
in the disks, and related planetary system formation processes.
For example, for the disk structure, our imaging and spectroscopic
observations (including extended disk survey) of nearby (~150pc
typically) group I and II Herbig Ae/Be stars at 10 and 20micron regions
has revealed that some disks extend very largely. From these disks,
their detailed disk structure was revealed. For example, in the
case of beta Pictoris, which is the most famous debris disk, detailed
dust distribution has been revealed and we found fine
(10AU scale) structures related to the forming planetary system was revealed.
In HD142527 case, well resolved 24.5micron image corresponds to the
outer disk emission found by CIAO, where ice absorption is detected
very recently.
Ground-based observations with large telescopes where their as high angular
resolution as possible is achieved stably is really important to
understand such disk systems.