Subaru Seminars



This Month






Site Map

Subaru Seminars are usually held in Room 104 of the Hilo Base Facility, adjacent to the main lobby. Everyone is welcome to attend. If you would like to give a seminar, please contact Subaru seminar organizers (Thayne Currie, Tae-Soo Pyo, Nagayoshi Ohashi) by email : (please change"_at" to @).

August 14, Monday, 1pm in 104A

" Star-disk interaction on Classical T Tauri stars, and stellar feedback on star formation "

Zhen Guo (Peking University)

In the first part of my talk, I am going to introduce a two-years-long multi-band photometric monitoring project on Classical T Tauri stars (GI Tau). We find evidence of star-disk interactions including disk warp extinction (dV > 2 mag) and variable accretion process. An empirical relationship between B-band excess luminosity and accretion luminosity is proposed in this work. In the second part of this talk, I will present our observation project on Subaru telescope. Star formation is an inefficient mechanism. Only a few percent of the available gas in molecular clouds forms stars, leading to the observed low star formation rate. Stellar feedback is considered to be one of the major physical mechanisms to counteract the quick global collapse of molecular clouds. In this talk, I will present our recent observational analysis on selected Galactic giant molecular clouds to understand the feedback mechanisms and its possible outcome on the subsequent star formation properties, such as, IMF, star formation efficiency, and rate.

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

Copyright (c) 1999-2000 Subaru Telescope, NAOJ. All rights reserved.