Subaru Seminars



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The Subaru Seminar is usually held in Room 104 of the Hilo Base Facility, adjacent to the main lobby. Everyone is welcome to attend. If you are interested in giving a seminar, please contact Subaru seminar organizers (Tomonori Usuda, Kumiko S. Usuda, Masayuki Akiyama) by email : (please change"_at" to @).

August 21, Monday at 3:30pm

" Young circumstellar disks revealed by COMICS MIR observations "

Yoshiko K. Okamoto (Ibaraki University)

Hideaki Fujiwara (University of Tokyo)

Dust grains are important material of planets and they change their distributions and properties in circumstellar disks during planetary system formation. Since many kinds of dust grains have distinguishing features in the mid-infrared (MIR) wavelengths, MIR observations are powerful for understanding disk evolution from the viewpoint of dust. We are making MIR observations using COMICS on Subaru to reveal dust distribution and evolution in circumstellar disks through planet formation. Our methods are (1) spectroscopy to study mineralogical evolution of dust, (2) high resolution imaging to study disk structures, and (3) spectroscopy with high spatial resolution to study dust distribution within the disks. We will present our recent results. Our presentation will include overall introduction of our results and detailed presentation for selected topics: dust distribution around beta Pic and protoplanetary disks, and a resolved outer disk around HD142527.

Seminars are also held at JAC, CFHT, and IfA.

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