Julien Devriendt: Publications

LeMoMaF: Lensed Mock Map Facility

(2006)

Authors:

Jaime E Forero-Romero, Jeremy Blaizot, Julien Devriendt, Ludovic Van Waerbeke, Bruno Guiderdoni

Cloud Dispersal in Turbulent Flows

ArXiv astro-ph/0610930 (2006)

Authors:

F Heitsch, AD Slyz, JEG Devriendt, A Burkert

Abstract:

Cold clouds embedded in warm media are very common objects in astrophysics. Their disruption timescale depends strongly on the dynamical configuration. We discuss the evolution of an initially homogeneous cold cloud embedded in warm turbulent gas. Within a couple of dynamical timescales, the filling factor of the cold gas within the original cloud radius drops below 50%. Turbulent diffusivities estimated from the time evolution of radial filling factor profiles are not constant with time. Cold and warm gas are bodily transported by turbulence and mixed. This is only mildly indicated by column density maps. The radiation field within the cloud, however, increases by several orders of magnitudes due to the mixing, with possible consequences for cloud chemistry and evolution within a few dynamical timescales.

Magnetized Non-linear Thin Shell Instability: Numerical Studies in 2D

(2006)

Authors:

F Heitsch, AD Slyz, JEG Devriendt, L Hartmann, A Burkert

Cloud Dispersal in Turbulent Flows

(2006)

Authors:

F Heitsch, AD Slyz, JEG Devriendt, A Burkert

Wide field spectrograph concepts for the European Extremely Large Telescope

Proceedings of SPIE the International Society for Optical Engineering 6269 II (2006)

Authors:

G Moretto, R Bacon, JG Cuby, F Hammer, P Amram, S Blais-Ouellette, PE Blanc, J Devriendt, B Epinat, T Fusco, P Jagourel, O Hernandez, JP Kneib, I Montilla, B Neichel, E Pécontal, E Prieto, M Puech

Abstract:

We report on the science case high level specifications for a wide field spectrograph instrument for an Extremely Large Telescope (ELT) and present possible concepts. Preliminary designs are presented which resort to different instrument concepts: monolithic integral field (IFU), multi-IFU, and a smart tunable filter. This work is part of the activities performed in the work package 'Instrumentation' of the 'ELT Design 51��', a programme supported by the European Community, Framework Programme 6.

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