Orateur
Dr
Philippe André
(CEA Saclay)
Description
Herschel imaging surveys of Galactic molecular clouds have emphasized the
quasi-universality of the filamentary structure of the cold ISM and the key
role of filaments in the star formation process. Planck polarization data
moreover suggest that the formation and evolution of star-forming filaments
is at least partly controlled by magnetic fields.
I will summarize the main objectives and prospects of the B-FUN large program
with NIKA2-POL, which will probe the morphology of magnetic field lines in
a selected sample of nearby molecular filaments on the critical < 0.1 pc scales
where fragmentation into prestellar cores occurs.
I will also discuss how 1.2mm polarimetric observations with NIKA2-POL can be
used to prepare for more extensive high-resolution polarimetric imaging studies
of Galactic ISM structures with SPICA-POL (B-BOP), the far-IR polarimetric
imager of the proposed SPICA cryogenic space telescope.
Auteur principal
Dr
Philippe André
(CEA Saclay)