The Cosmic Evolution Survey (COSMOS): Subaru observations of the HST cosmos field

Y. Taniguchi, N. Scoville, T. Murayama, D. B. Sanders, B. Mobasher, H. Aussel, P. Capak, M. Ajiki, S. Miyazaki, Y. Komiyama, Y. Shioya, T. Nagao, S. S. Sasaki, J. Koda, C. Carilli, M. Giavalisco, L. Guzzo, G. Hasinger, C. Impey, O. LeFevreS. Lilly, A. Renzini, M. Rich, E. Schinnerer, P. Shopbell, N. Kaifu, H. Karoji, N. Arimoto, S. Okamura, K. Ohta

Research output: Contribution to journalReview article

220 Scopus citations


We present deep optical imaging observations of 2 square degree area, covered by the Cosmic Evolution Survey (COSMOS), made by the prime-focus camera (Supreme-Cam) on the 8.2 m Subaru Telescope. Observations were done in six broadband [B (4459.7 ̊), g′ (4723.1 ̊), V (5483.8 ̊), r′ (6213.0 ̊), i′(7640.8 ̊),z′ (8855.0 ̊)] and one narrowband (NB816) filters. A total of 10 6 galaxies were detected to i′∼ 26.5 mag. These data, combined with observations at u* and K-band are used to construct the photometric catalogs for the COSMOS, to measure their photometric redshifts, multiband spectral energy distributions, and stellar masses, and to identify high-redshift candidates. This catalog provides multi-wave band data for scientific analysis of the COSMOS survey.

Original languageEnglish (US)
Pages (from-to)9-28
Number of pages20
JournalAstrophysical Journal, Supplement Series
Issue number1
StatePublished - Oct 22 2007



  • Galaxies: evolution
  • Galaxies: interactions

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Taniguchi, Y., Scoville, N., Murayama, T., Sanders, D. B., Mobasher, B., Aussel, H., Capak, P., Ajiki, M., Miyazaki, S., Komiyama, Y., Shioya, Y., Nagao, T., Sasaki, S. S., Koda, J., Carilli, C., Giavalisco, M., Guzzo, L., Hasinger, G., Impey, C., ... Ohta, K. (2007). The Cosmic Evolution Survey (COSMOS): Subaru observations of the HST cosmos field. Astrophysical Journal, Supplement Series, 172(1), 9-28.