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Very Deep Surveys

Published online by Cambridge University Press:  14 August 2015

Y. Taniguchi
Y. Taniguchi*
Affiliation:
Astronomical Institute, Tohoku UniversityAramaki, Aoba, Sendai 980-77, Japan

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When and how did galaxies form? In order to understand this important problem in astrophysics, many observational studies have been conducted so far. Deep survey observations in the optical are powerful for detecting very faint sources in the high-z universe The observed surface density of such high-z star forming galaxies may, however, be smaller than the value expected from the local density of luminous galaxies (e.g., Lanzetta et al. 1996; Steidel et al. 1996) and it is possible that we are missing classes of objects with substantial reddening and have not yet sampled fully the high-z counterparts of typical nearby galaxies. Since the nearby, well evolved galaxies consist of old low-mass stars, it is important to find galaxies with numerous low-mass stars. These stars emit their energy from the optical to near infrared (NIR) mostly, implying that they are more luminous in the NIR and MIR (mid-infrared) than in the optical if they were present at high redshifts.

Type
III. Special Scientific Sessions
Information
Highlights of Astronomy , Volume 11 , Issue 2: Highlights of Astronomy. As presented at the XXIIIrd General Assembly of the IAU (Part B), 1997 , 1998 , pp. 1125 - 1127
Copyright
Copyright © Kluwer 1998

References

Arimoto, N., and Yoshii, Y. (1987) Chemical and Photometric Properties of a Galactic Wind Model for Elliptical galaxies, A&A, 173, 23 Google Scholar
Aussel, H., Elbaz, D., Starck, J.L., and Cesarsky, C.J. (1997) Observation of the Hubble Deep Field with ISOCAM: Application of the PRETI Method, in Extragalactic Astronomy in the Infrared, eds. Mamon, G., Thuan, T., TranhVan, J. (Gif-sur-Yvette: Ed. Frontieres), in pressGoogle Scholar
Cesarsky, C.J., Abergel, A., Agnese, P., et al., (1996) ISOCAM in Flight, A&A, 315, L32 Google Scholar
Cowie, L.L., Songaila, A., Hu, E.M., and Cohen, J.G. (1996) New Insight on Galaxy Formation and Evolution From Keck Spectroscopy of the Hawaii Deep Fields, AJ 112, 839 Google Scholar
Goldschmidt, P., Oliver, S., Serjeant, S., et al. (1997) Observations of the Hubble Deep Field with the Infrared Space Observatory – II. Source detection and photometry, MNRAS, 289, 465 Google Scholar
Jahoda, K., Lockman, F.J., and McCammon, D. (1990) Galactic H I and the interstellar medium in Ursa Major, ApJ, 354, 184 CrossRefGoogle Scholar
Kessler, M.F., Steinz, J.A., Anderegg, M.E., et al. (1996) The Infrared Space Observatory (ISO) mission, A&A, 315, L27 Google Scholar
Lanzetta, K.M., Yahil, A., and Fernandes-Soto, A. (1996) Star-forming Galaxies at Very High Redshifts, Nature, 381, 759 Google Scholar
Rowan-Robinson, M., Mann, R.G., Oliver, S.J., et al. (1997) Observations of the Hubble Deep Field with the Infrared Space Observatory – V. Spectral energy distributions, starburst models and star formation history, MNRAS, 289, 490 Google Scholar
Steidel, C.S., Giavalisco, M., Pettini, M., Dickinson, M., and Adelberger, K.L. (1996) Spectroscopic Confirmation of a Population of Normal Star-forming Galaxies at Redshifts z > 3, ApJ, 462, L17 Google Scholar
Taniguchi, Y., Okuda, H., Wakamatsu, K., et al. (1994) A Search for Primeval Galaxies and Quasars with ISO, in Evolution of the Universe and Its Observational Quest, ed. Sato, K. (Universal Academy Press; Tokyo), 545 Google Scholar
Taniguchi, Y. Cowie, L.L. Sato, Y. et al. (1997) ISOCAM 7 micron Deep Survey of the Lockman Hole: A Mid-Infrared Search for Primeval Galaxies, A&A, in pressGoogle Scholar
Williams, R. E., Blacker, B., Dickinson, M., et al. (1996) The Hubble Deep Field: Observations, Data Reduction, and Galaxy Photometry, AJ, 112, 1335 CrossRefGoogle Scholar