The HST Cosmos Project: Contribution from the SUBARU Telescope
Aussel, H.; Sanders, D. B.; Murayama, T.; Capak, P.; Koda, J.; Scoville, N. Z.; Mobasher, B.; Taniguchi, Yoshiaki; Nagao, T.; Shioya, Y.; Sasaki, S.; Miyazaki, S.; Ajiki, M.; Komiyama, Y.; Karoji, H.; Sumiya, R.; Heinlein, L.; Hatakeyama, Y.; COSMOS Team
Japan, United States, France, Italy
Abstract
The Cosmic Evolution Survey (COSMOS) is a Hubble Space Telescope (HST) treasury project.The COSMOS aims to perform a 2 square degree imaging survey of an equatorial field in $I$(F814W) band, using the Advanced Camera for Surveys (ACS). Such a wide field survey, combined with ground-based photometric and spectroscopic data, is essential to understand the interplay between large scale structure, evolution and formation of galaxies and dark matter. In 2004, we have obtained high-quality, broad band images of the COSMOS field ($B, V, r^\prime, i^\prime,$ and $ z^\prime$) using Suprime-Cam on the Subaru Telescope, and we have started our new optical multi-band program, COSMOS-21 in 2005. Here, we present a brief summary of the current status of the COSMOS project together with contributions from the Subaru Telescope. Our future Subaru program, COSMOS-21, is also discussed briefly.