# From clouds to protoplanetary disks: the astrochemical link

4-8 October 2015
Hans Harnack Haus
Europe/Berlin timezone
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# Contribution Contributed Talk

Hans Harnack Haus -
FROM PROTOSTARS TO PROTOPLANETARY DISKS 1

# Accretion disks in young high-mass stars

## Speakers

• Dr. Maite BELTRAN

## Content

Spatially resolved molecular line observations have revealed circumstellar disks in Keplerian rotation around young stellar objects with masses up to 30 $M_\odot$. Line emission observations have been crucial in identifying and characterizing these disks and have allowed us to study their dynamics. In this contribution, I will discuss their properties and evolution and compare them to the circumstellar structures around lower mass counterparts. Particularly, I will discuss the mass accretion of disks as a function of stellar mass and time to get insights into the universality of star-formation models.