Valentin Perret

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The MASSIV sample includes 84 starforming galaxies drawn from the VIMOS VLT Deep Survey (VVDS; Le Fèvre et al., 2005) in the redshift range 0.9 < z < 2.2. The main advantage of selecting galaxies from the VVDS is that it is a complete magnitude-selected survey avoiding the biases linked to a priori colour selection techniques. This unique sample of more(More)
Star-forming disk galaxies at high redshift are often subject to violent disk instability, characterized by giant clumps whose fate is yet to be understood. The main question is whether the clumps disrupt within their dynamical timescale (�50 Myr), like the molecular clouds in today’s galaxies, or whether they survive stellar feedback for more than a disk(More)
When cosmic star formation history reaches a peak (at about redshift z ≈ 2), galaxies vigorously fed by cosmic reservoirs are dominated by gas and contain massive star-forming clumps, which are thought to form by violent gravitational instabilities in highly turbulent gas-rich disks. However, a clump formation event has not yet been observed, and it is(More)
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