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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.


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



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