11-15 May 2020
Leibniz Institute for Astrophysics Potsdam (AIP)
Europe/Berlin timezone

Measuring 3D Velocities in Planet Forming Disks

14 May 2020, 09:00
20m
Lecture Hall (Leibniz Institute for Astrophysics Potsdam (AIP))

Lecture Hall

Leibniz Institute for Astrophysics Potsdam (AIP)

An der Sternwarte 16 14482 Potsdam, Germany
Oral presentation Main conference Observational Signatures & Constraints

Speaker

Dr Richard Teague (Center for Astrophysics | Harvard & Smithsonian)

Description

I will present a novel method to extract azimuthally averaged 3D velocity profiles from ALMA data. Application of this to the well studied source HD 163296 reveals a highly dynamical disk, hosting large flow structures indicative of meridional flows likely driven by three embedded protoplanets. These flows provide an efficient transport mechanism of volatile-rich gas in the disk atmosphere towards the planet-forming midplane. In addition, we find tentative evidence of a slow disk wind in the outer 100 au of the disk, like connected to the previously detected large scale wind described in Klaassen et al. (2013). I will further demonstrate how application of this method to multiple molecular species will allow us to map the dynamical structure of a protoplanetary disks in the (r, z) plane, allowing us to directly search for characteristic flow structures which will help us to distinguish between potentially active instabilities. I will end with an outlook to how extensions of these methods can be used to search for embedded planets by searching for localized deviations from the background rotation.

Primary authors

Dr Richard Teague (Center for Astrophysics | Harvard & Smithsonian) Jaehan Bae (Carnegie Institution of Washington) Prof. Ted Bergin (University of Michigan)

Presentation Materials

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