K. Ohta (Kyoto Univ.) with I. Iwata (NAOJ, Okayama) M. Ando (Kyoto Univ.) M. Akiyama (NAOJ, Subaru) N. Tamura (Durham, UK) K. Aoki (NAOJ, Subaru). LBG ｓ at z~5. LBG search at GOODS-N and J0053+1234 fields V, I_c, z’ ; z~5 with S-Cam/Subaru Highest redshift achieved with two-color
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I. Iwata (NAOJ, Okayama)
M. Ando (Kyoto Univ.)
M. Akiyama (NAOJ, Subaru)
N. Tamura (Durham, UK)
K. Aoki (NAOJ, Subaru)LBGｓ at z~5
V, I_c, z’ ; z~5 with S-Cam/Subaru
Highest redshift achieved with two-color
diagram using standard filter system
Age of 1Gyr and 1Gyr earlier from z~3
Fainter LBGs increase at the later epoch
Disagreement among UVLFs at z~4, 5
in a luminous part
Example of UV spectra of z~5 LBGs z=5 to 3
Ando et al. 2004
Dusty environment in luminous LBGs?
Fainter LBGs at z~3 are late comers?
Luminous z~5 LBGs in dusty environment?
chemically evolved to some degree?
=> lack of blue luminous ones?
Luminous z~5 LBGs show larger clustering amp.
luminous LBGs reside in massive DHs?
=> SF started eariler?Downsizing of LBGs?
Large sample of luminous z=5 to 3
LBGs will be obtained from