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, Nagayoshi Ohashi, Tomonori Usuda)
by email : sseminar_at_subaru.naoj.org (please change"_at_" to @).
Jan 25, Friday, at 11:00 am
" Star formation and molecular gas in the distant Universe in the 2 SF-mode framework "
We have used observations from the Herschel space observatory and the IRAM Plateau
de Bure interferometry to characterize the evolving properties of star forming galaxies
up to a redshift of about 2, including their star formation rates and gas content (hence star
formation efficiencies). The most interesting outcome is that their evolution can be quite
well described with a simplified empirical framework where stellar mass is the primary
physical parameter, with the differentiation between disk like growth and merging triggered
star formation is a first order correction. In this 2SF-mode framework we can account for
the IR luminosity function and multi-frequency galaxy counts, the cosmic evolution of dust
temperatures, and the luminosity of the AGNs they contain. Ultimately, it appears that the
availibility of gas reservoirs is the most important ingredient regulating the cosmic growth
of galaxies and of their supermassive black holes.
Seminars are also held at JAC,