Oral Presentation

Star Formation Rate Function at z~4.5: Analysis from rest UV to Optical

Author(s): Yoshihisa Asada, Kouji Ohta (Kyoto University)

Presenter: Yoshihisa Asada (Kyoto University)

We present a star formation rate function (SFRF) at z~4.5 derived by SED fitting using photometry from rest-UV to optical.
In high-z universe, SFRF is usually estimated based on rest-UV luminosity function, but we find that the SFRF derived by SED fitting shows an excess to that is estimated from UV luminosity function, and this result does not change with the choice of dust extinction law, star formation history or two-component model.
Our results suggest that star formation activity in this epoch is dominant by intensively star-forming galaxies.