Year: 2009
Type: conference-paper
Abstract: We investigate the case of [CII] 158μm observations for SPICA/SAFARI using a three-dimensional magnetohydrodynamical (MHD) simulation of the diffuse interstellar medium (ISM) and the Meudon PDR code. The MHD simulation consists of two converging flows of warm gas (104 K) within a cubic box 50 pc in length. The interplay of thermal instability, magnetic field and self-gravity leads to the formation of cold, dense clumps within a warm, turbulent interclump medium. We sample several clumps along a line of sight through the simulated cube and use them as input density profiles in the Meudon PDR code. This allows us to derive intensity predictions for the [CII] 158μm line and provide time estimates for the mapping of a given sky area.
Authors: F. Levrier, M. Gerin, P. Hennebelle, E. Falgarone, F. Le Petit, J. R. Goicoechea
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
OpenAlex ID: W2074239165