Disk Winds and the Evolution of Planet-Forming Disks

• Main Authors: Pascucci, I, Andrews, S, Chandler, C, Isella, A
• Format: Journal Article
• Language: English
• Published: 25-10-2018
• Subjects: Physics - Earth and Planetary Astrophysics
• DOI: 10.48550/arxiv.1810.11150

Disk winds are thought to play an important role in the evolution and
dispersal of planet-forming disks. While high-resolution optical and infrared
spectroscopy has identified several disk wind diagnostics, wind mass loss rates
remain largely unconstrained mostly due to the lack of spatial resolution to
measure the extent of the wind emitting region. Here, we show that the ngVLA
will have the sensitivity and resolution to detect and spatially resolve the
free-free emission from the fully or partially ionized component of disk winds.
Hence, ngVLA observations will be critical to estimate mass loss rates and
clarify the role of disk winds in the evolution and dispersal of disk mass.