EPoS Contribution
EPoS Contribution
Constraining dust size and disc properties with ALMA and EVLA observations

Marco Tazzari
ESO, Garching, DE
The growth of solids from micron-sized particles to planetesimals (several orders of magnitude larger) is a critical stage in the formation of planetary systems (including our own). Observations at millimetre and submillimetre wavelengths allow us to probe the solids on the disk midplane where the bulk of the material is located and where planets are expected to form. The distribution of grain sizes in different regions of the disk is a powerful probe of the physical mechanisms related to grain growth and ultimately on how solids can overcome the various growth barriers on the way to form planetesimals and planetary cores. The upgraded VLA and, especially, the ALMA observatories provide new powerful tools to resolve grain growth in disks, but they also provide huge datasets that require new and more efficient methods of data analysis. I will present a novel approach to extract the dust properties in disks that I have developed and will show the preliminary results of applying this method to young protoplanetary disks.
Collaborators:
L. Testi, ESO/INAF Arcetri, DE
B. Ercolano, USM/LMU, DE
I. Jimenez-Serra, ESO, DE
A. Natta, INAF Arcetri, IT
A. Isella, Caltech, USA
Suggested Session: Cores to Disks