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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
(Tadayuki Kodama, Kumiko S. Usuda, Naoyuki Tamura, Tomonori Usuda)
by email : sseminar_at_subaru.naoj.org (please change"_at" to @).
February 3, Thursday, at 1:30 pm
" Extremely compact dead galaxies at z~2: the SEEDs of massive local ellipticals "
Sune Toft
(DCC, University of Copenhagen, Denmark)
Half of the most massive galaxies at z~2 have recently been shown to have surprising
and quite extreme properties. With masses like local ellipticals, but sizes like
local dwarf galaxies, they have extremely compact stellar populations, orders of
magnitudes higher that in any local galaxies. They apparently have disk like structure,
old ages (1 Gyr) and quiescent stellar populations already at this high redshift.
I review the observational evidence for their extreme properties, and our efforts
to learn more about them and put them into cosmological context.