The formation and build-up of the red-sequence over the past 9 Gyr in VIPERS

We present the Luminosity Function (LF) and Colour-Magnitude Relation (CMR) using ∼45000 galaxies drawn from the VIMOS Public Extragalactic Redshift Survey (VIPERS). Using different selection criteria, we define several samples of early-type galaxies and explore their impact on the evolution of the...

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Bibliographic Details
Published in:Proceedings of the International Astronomical Union 2014-07, Vol.10 (S309), p.313-313
Main Author: Fritz, Alexander
Format: Article
Language:English
Subjects:
Accumulation
Assembly
Astronomy
Contributed Papers
Density
Evolution
Galaxies
Luminosity
Merging
Quenching
Stars & galaxies
Statistics
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Summary:We present the Luminosity Function (LF) and Colour-Magnitude Relation (CMR) using ∼45000 galaxies drawn from the VIMOS Public Extragalactic Redshift Survey (VIPERS). Using different selection criteria, we define several samples of early-type galaxies and explore their impact on the evolution of the red-sequence (RS) and the effects of dust. Our results suggest a rapid build-up of the RS within a short time scale. We find a rise in the number density of early-type galaxies and a strong evolution in LF and CMR. Massive galaxies exist already 9 Gyr ago and experience an efficient quenching of their star formation at z = 1, followed by a passive evolution with only limited merging activity. In contrast, low-mass galaxies indicate a different mass assembly history and cause a slow build-up of the CMR over cosmic time.
ISSN:1743-9213
1743-9221
DOI:10.1017/S1743921314010096