Vous êtes ici

Protoplanetary Disks with JWST/MIRI

Date: 
Jeudi, 22 Septembre, 2016 - 11:30
Lieu: 
Bât. 121, salle 123
Nom de l'intervenant: 
I. Kamp (Kapteyn, Pays-Bas)

Protoplanetary disks are the cradles of planet formation. With the recent instrumental advances in sensitivity and spatial resolution, we start to discover the first signposts of ongoing planet formation within these disks both in submm emission of cold large dust and in near-IR scattered light from small dust grains: Gaps, spiral arms and non-axisymmetric structures. High contrast near-IR imaging has discovered the first protoplanet candidates still embedded in their natal disk. The MIRI instrument onboard of JWST provides now the sensitivity to image the outer protoplanetary disk structure also in the thermal mid-IR to search for signposts of planet formation and young protoplanets. MIRI's spectral resolution of ~3000 is sufficient to study how the organic inventory beyond the simple molecules CO and OH evolves in an unbiased sample of young disks during the planet formation phase. The immense sensitivity and spectral resolution enables for the first time studies down into the regime of disks around brown dwarfs to search for similarities and differences in their chemical inventory. I will show that MIRI is able to study the water content in very different types of disks (e.g. primordial, transitional) and provide key constraints for planet formation in the terretrial planet forming zone.

So, I will give a broad and very general intro into where we stand with disk research right now; that should be understandable for everyone. The second half would be more zooming in on specific capabilities of MIRI and also on water in disks (chemistry and mid-IR spectra).

Difficulté: 
S'abonner à Syndiquer