Luminosity Functions of Lyman-Break Galaxies at z~4 and 5 in the Subaru Deep Field
Aug, 200628 pages
Published in:
- Astrophys.J. 653 (2006) 988-1003
e-Print:
- astro-ph/0608512 [astro-ph]
DOI:
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Abstract: (arXiv)
We investigate the luminosity functions of Lyman-break galaxies (LBG) at z~4 and 5 based on the optical imaging data obtained in the Subaru Deep Field Project. Three samples of LBGs in a contiguous 875 arcmin^2 area are constructed. One consists of 3,808 LBGs at z~4 down to i'=26.85 selected with the B-R vs R-i' diagram. The other two consist of 539 and 240 LBGs at z~5 down to z'=26.05 selected with two kinds of two-color diagrams: V-i' vs i'-z' and R-i' vs i'-z'. The adopted selection criteria are proved to be fairly reliable by spectroscopic observation. We derive the luminosity functions of the LBGs at rest-frame ultraviolet wavelengths down to M_{UV}=-19.2 at z~4 and M_{UV}=-20.3 at z~5. We find clear evolution of the luminosity function over the redshift range of 0- cosmology: observations
- galaxies: evolution
- galaxies: high-redshift
- galaxies: luminosity function, mass function
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