We present long baseline Atacama Large Millimeter/submillimeter Array (ALMA)
observations of the 870 μm continuum emission from the nearest gas-rich protoplanetary …

Turbulence is a fundamental parameter in models of grain growth during the early stages of
planet formation. As such, observational constraints on its magnitude are crucial. Here we …

Context. The formation of planetesimals in protoplanetary disks is not well-understood.
Streaming instability is a promising mechanism to directly form planetesimals from pebble …

We present scattered light images of the TW Hya disk performed with the Spectro-
Polarimetric High-contrast Exoplanet REsearch instrument in Polarimetric Differential …

A snow-line is the region of a protoplanetary disk at which a major volatile, such as water or
carbon monoxide, reaches its condensation temperature. Snow-lines play a crucial role in …

Context. The planet-forming region of protoplanetary disks is cold, dense, and therefore
weakly ionized. For this reason, magnetohydrodynamic (MHD) turbulence is thought to be …

We analyze high angular resolution ALMA observations of the TW Hya disk to place
constraints on the CO and dust properties. We present new, sensitive observations of the 12 …

The first detection of gas-phase methanol in a protoplanetary disk (TW Hya) is presented. In
addition to being one of the largest molecules detected in disks to date, methanol is also the …

ABSTRACT CO is widely used as a tracer of molecular gas. However, there is now mounting
evidence that gas phase carbon is depleted in the disk around TW Hya. Previous efforts to …

The gas dynamics of weakly ionized protoplanetary disks (PPDs) are largely governed by
the coupling between gas and magnetic fields, described by three non-ideal …