We present multi-epoch 6 GHz radio continuum observations of approximately 100 known proplyds in the Orion Nebula Cluster (ONC) obtained with the Karl G. Jansky Very Large Array as part of the VLA Orion A Large Survey (VOLS). VOLS is the first radio survey to cover a large area of Orion A at subarcsecond resolution, improving sensitivity by a factor of 20 over previous surveys. Protoplanetary...
Understanding how protoplanetary disks deplete their solid reservoirs is a central question in planet formation, since disk evolution sets the timescale over which planets can assemble. Constraining this process requires large homogeneous samples of disks with reliable stellar ages. We revisit the disk dust mass evolution in the Scorpius–Centaurus (Sco–Cen) OB association, the nearest OB...
We present high-angular and high-spectral resolution ALMA CO observations of the molecular jet driven by the outbursting protostar SVS 13. Thanks to the high sensitivity of these data, we are able to resolve faint shell-like structures connected to jet knots at their apex. The morphology and kinematics of these shells are in excellent agreement with predictions from an analytical bowshock...
Despite significant progress in observing stellar magnetic fields, the physical processes that determine their strength and structure - likely shaped by their formation history - remain poorly understood. During the pre-main-sequence (PMS) phase, a star’s inner layers contract, gradually forming a radiative core, while its convective envelope slows due to magnetic interactions with the...
We present high-resolution ALMA observations of the Class II brown dwarf 2MASS J04442713+2512164 (2M0444), one of the brightest and best-studied BD disks. Our 0.89 mm continuum and 12CO (3–2) line data reach a spatial resolution of 0.046 arcsec (~6.4 au), enabling the first dynamical mass measurement in the substellar regime from ALMA data. We constrain the central mass to 0.043–0.092 Msun,...
