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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 Masayuki
Akiyama by email.
Augast 12, Tuesday at 10:00am
"Luminosity Function of Galaxies in the Subaru Deep Field"
Hisanori Furusawa (Subaru Telescope, NAOJ)
Subaru Deep Field (SDF) is one of the blank fields where Subaru
Telescope is conducting wide and deep blank-field survey projects.
We study the evolution of B-band color-separated luminosity
functions (LFs) of field galaxies up to z~1 in the SDF
(~550arcmin^2), based on a photometric redshift technique using
multi-band data (B,V,R,i,z bands; i=25.3) taken with the Subaru
Prime Focus Camera (Suprime-Cam). The LFs obtained from the SDF
data reveal very wide magnitude range from the bright end to the
faint end. It is found that the blue population shows significant
brightening against redshift while the red population indicates a
strong decreases in the number density, which roughly supports the
implication given in previous surveys. Remarkably, the LFs of both
blue and red populations have very steep slopes at the faint ends,
suggesting the existence of quite a number of field dwarf galaxies
(MB>-17). We discuss properties of these dwarf galaxies found
based on photo-z and future prospects as well.