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
(Tadayuki Kodama, Kumiko S. Usuda, Naoyuki Tamura, Tomonori Usuda)
by email : sseminar_at_subaru.naoj.org (please change"_at" to @).
January 10, Monday, at 11:00 am
" Comparison of AGN and Nuclear Starburst Activities in Seyfert Galaxies "
(Subaru Telescope / SOKENDAI)
A starburst in the central region of Active Galactic Nucleus
(AGN) is thought to be a controller of AGN activity.
However, we do not have any common understanding of how the
nuclear starburst actually controls the AGN activity yet.
There are some models, and these different models predict
different relationships between nuclear starburst and AGN.
Therefore, measuring the nuclear starburst activities
quantitatively and comparing them with AGN activities over a
wide range in AGN luminosity can put constraints on the models.
In this talk, I will describe our results from the near-IR,
K- and L-bands spectra of Seyfert galaxies taken with IRTF/SpeX.
We find a positive relationship between the two activities.
We also find a significant difference in K-L colors between
type 1 and 2 Seyfert galaxies. Our results imply that the AGN
activity is triggered by a turbulence induced by the nuclear
starburst which is occurring in the outer part of dusty torus.
Seminars are also held at JAC,