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The intriguing life of star-forming galaxies in the redshift range 1 < z < 2 using MASSIV
P. Amram, C. Lopez-Sanjuan, B. Epinat +13
MASSIV (Massiv Assembly Survey with SINFONI in VVDS) is an ESO large program which consists of 84 star-forming galaxies, spanning in a wide range of stellar masses, observed with t…
Mass Assembly of High-z Galaxies with MASSIV
V. Perret, B. Epinat, P. Amram +13
MASSIV (Mass Assembly Survey with SINFONI in VVDS) is a sample of 84 distant star-forming galaxies observed with the SINFONI Integral Field Unit (IFU) on the VLT. These galaxies ar…
HeII emitters in the VIMOS VLT Deep Survey: PopIII star formation or peculiar stellar populations in galaxies at 2<z<4.6?
P. Cassata, O. Le Fevre, S. Charlot +15
The aim of this work is to identify HeII emitters at 2<z<4.6 and to constrain the source of the hard ionizing continuum that powers the HeII emission. We have assembled a sample of…
The Colors of Central and Satellite Galaxies in zCOSMOS out to z ~ 0.8 and Implications for Quenching
C. Knobel, S. J. Lilly, K. Kovac +47
We examine the red fraction of central and satellite galaxies in the large zCOSMOS group catalog out to z ~ 0.8 correcting for both the incompleteness in stellar mass and for the l…
Easylife: the data reduction and survey handling system for VIPERS
B. Garilli, L. Paioro, M. Scodeggio +3
We present Easylife, the software environment developed within the framework of the VIPERS project for automatic data reduction and survey handling. Easylife is a comprehensive sys…
Proto-groups at 1.8<z<3 in the zCOSMOS-deep sample
C. Diener, S. J. Lilly, C. Knobel +48
We identify 42 candidate groups lying between 1.8<z<3.0 from a sample of 3502 galaxies with spectroscopic redshifts in the zCOSMOS-deep redshift survey within the same redshift int…
The cosmic evolution of oxygen and nitrogen abundances in star-forming galaxies over the past 10 Gyrs
E. Perez-Montero, T. Contini, F. Lamareille +35
The chemical evolution of galaxies on a cosmological timescale is still a matter of debate despite the increasing number of available data provided by spectroscopic surveys of star…
Euclid Mission: building of a Reference Survey
J. Amiaux, R. Scaramella, Y. Mellier +28
Euclid is an ESA Cosmic-Vision wide-field-space mission which is designed to explain the origin of the acceleration of Universe expansion. The mission will investigate at the same…
MOONS: a Multi-Object Optical and Near-infrared Spectrograph for the VLT
M. Cirasuolo, J. Afonso, R. Bender +77
MOONS is a new conceptual design for a Multi-Object Optical and Near-infrared Spectrograph for the Very Large Telescope (VLT), selected by ESO for a Phase A study. The baseline des…
MASSIV: Mass Assembly Survey with SINFONI in VVDS. V. The major merger rate of star-forming galaxies at 0.9 < z < 1.8 from IFS-based close pairs
C. López-Sanjuan, O. Le Fèvre, L. A. M. Tasca +12
We aim to measure the major merger rate of star-forming galaxies at 0.9 < z <1.8, using close pairs identified from integral field spectroscopy (IFS). We use the velocity field map…
The VIMOS Public Extragalactic Redshift Survey (VIPERS): spectral classification through Principal Component Analysis
A. Marchetti, B. R. Granett, L. Guzzo +51
We develop a Principal Component Analysis aimed at classifying a sub-set of 27,350 spectra of galaxies in the range 0.4 < z < 1.0 collected by the VIMOS Public Extragalactic Redshi…
A group-galaxy cross-correlation function analysis in zCOSMOS
C. Knobel, S. J. Lilly, C. M. Carollo +46
We present a group-galaxy cross-correlation analysis using a group catalog produced from the 16,500 spectra from the optical zCOSMOS galaxy survey. Our aim is to perform a consiste…
The zCOSMOS 20k Group Catalog
C. Knobel, S. J. Lilly, A. Iovino +48
We present an optical group catalog between 0.1 < z < 1 based on 16,500 high-quality spectroscopic redshifts in the completed zCOSMOS-bright survey. The catalog published herein co…
Environmental effects in the interaction and merging of galaxies in zCOSMOS survey
P. Kampczyk, S. J. Lilly, the zCOSMOS Collaboration
The zCOSMOS-bright 10k spectroscopic sample reveals a strong environmental dependence of close kinematic galaxy pair fractions in the redshift range 0.2 < z < 1. The fraction of cl…
Probing deviations from General Relativity with the Euclid spectroscopic survey
Elisabetta Majerotto, Luigi Guzzo, Lado Samushia +10
We discuss the ability of the planned Euclid mission to detect deviations from General Relativity using its extensive redshift survey of more than 50 Million galaxies. Constraints…
The COSMOS Density Field: A Reconstruction Using Both Weak Lensing and Galaxy Distributions
A. Amara, S. Lilly, K. Kovac +49
The COSMOS field has been the subject of a wide range of observations, with a number of studies focusing on reconstructing the 3D dark matter density field. Typically, these studie…
Comparison of star formation rates from Halpha and infrared luminosities as seen by Herschel
H. Domínguez, M. Mignoli, F. Pozzi +55
We empirically test the relation between the SFR(LIR) derived from the infrared luminosity, LIR, and the SFR(Ha) derived from the Ha emission line luminosity using simple conversio…
The dominant role of mergers in the size evolution of massive early-type galaxies since z ~ 1
C. López-Sanjuan, O. Le Fèvre, O. Ilbert +60
In this paper we measure the merger fraction and rate, both minor and major, of massive early-type galaxies (M_star >= 10^11 M_Sun) in the COSMOS field, and study their role in mas…
MASSIV: Mass Assembly Survey with SINFONI in VVDS. IV. Fundamental relations of star-forming galaxies at 1<z< 1.6
D. Vergani, B. Epinat, T. Contini +10
How mass assembly occurs in galaxies and which process(es) contribute to this activity are among the most highly debated questions in galaxy formation theories. This has motivated…
The power spectrum from the angular distribution of galaxies in the CFHTLS-Wide fields at redshift ~0.7
B. R. Granett, L. Guzzo, J. Coupon +32
We measure the real-space galaxy power spectrum on large scales at redshifts 0.5 to 1.2 using optical colour-selected samples from the CFHT Legacy Survey. With the redshift distrib…
MASSIV: Mass Assembly Survey with SINFONI in VVDS - II. Kinematics and close environment classification
B. Epinat, L. Tasca, P. Amram +12
(Abridged) Processes driving mass assembly are expected to evolve on different timescales along cosmic time. A transition might happen around z ~ 1 as the cosmic star formation rat…
A journey from the outskirts to the cores of groups I: Color- and mass-segregation in 20K-zCOSMOS groups
V. Presotto, A. Iovino, M. Scodeggio +49
Using the group catalog obtained from zCOSMOS spectroscopic data and the complementary photometric data from the COSMOS survey, we explore segregation effects occurring in groups o…
Improved constraints on the expansion rate of the Universe up to z~1.1 from the spectroscopic evolution of cosmic chronometers
M. Moresco, A. Cimatti, Raul Jimenez +65
We present new improved constraints on the Hubble parameter H(z) in the redshift range 0.15 < z < 1.1, obtained from the differential spectroscopic evolution of early-type galaxies…