Observations of protoplanetary disk structures

SM Andrews - Annual Review of Astronomy and Astrophysics, 2020 - annualreviews.org
The disks that orbit young stars are the essential conduits and reservoirs of material for star
and planet formation. Their structures, meaning the spatial variations of the disk physical …

The origin and evolution of transition discs: Successes, problems, and open questions

JE Owen - Publications of the Astronomical Society of Australia, 2016 - cambridge.org
Transition discs are protoplanetary discs that show evidence for large holes or wide gaps
(with widths comparable to their radii) in their dust component. These discs could be giving …

Kinematic evidence for an embedded protoplanet in a circumstellar disk

C Pinte, DJ Price, F Ménard, G Duchêne… - The Astrophysical …, 2018 - iopscience.iop.org
Disks of gas and dust surrounding young stars are the birthplace of planets. However, the
direct detection of protoplanets forming within disks has proved elusive to date. We present …

Nine localized deviations from Keplerian rotation in the DSHARP circumstellar disks: kinematic evidence for protoplanets carving the gaps

C Pinte, DJ Price, F Ménard, G Duchêne… - The Astrophysical …, 2020 - iopscience.iop.org
We present evidence for localized deviations from Keplerian rotation, ie, velocity" kinks," in 8
of the 18 circumstellar disks observed by the DSHARP program: DoAr 25, Elias 2–27, GW …

A three-dimensional view of turbulence: constraints on turbulent motions in the HD 163296 protoplanetary disk using DCO+

KM Flaherty, AM Hughes, SC Rose… - The Astrophysical …, 2017 - iopscience.iop.org
Gas kinematics are an important part of the planet formation process. Turbulence influences
planetesimal growth and migration from the scale of submicron dust grains through gas …

Breeding super-Earths and birthing super-puffs in transitional disks

EJ Lee, E Chiang - The Astrophysical Journal, 2016 - iopscience.iop.org
The riddle posed by super-Earths (1–4R⊕, 2–20M⊕) is that they are not Jupiters: their core
masses are large enough to trigger runaway gas accretion, yet somehow super-Earths …

Shadows and spirals in the protoplanetary disk HD 100453

M Benisty, T Stolker, A Pohl, J De Boer, G Lesur… - Astronomy & …, 2017 - aanda.org
Context. Understanding the diversity of planets requires studying the morphology and
physical conditions in the protoplanetary disks in which they form. Aims. We aim to study the …

Highly structured disk around the planet host PDS 70 revealed by high-angular resolution observations with ALMA

M Keppler, R Teague, J Bae, M Benisty… - Astronomy & …, 2019 - aanda.org
Context. Imaged in the gap of a transition disk and found at a separation of about 195 mas (~
22 au) from its host star at a position angle of about 155°, PDS 70 b is the most robustly …

Circumbinary, not transitional: on the spiral arms, cavity, shadows, fast radial flows, streamers, and horseshoe in the HD 142527 disc

DJ Price, N Cuello, C Pinte, D Mentiplay… - Monthly Notices of …, 2018 - academic.oup.com
We present 3D hydrodynamical models of the HD 142527 protoplanetary disc, a bright and
well-studied disc that shows spirals and shadows in scattered light around a 100 au gas …

Shadows cast on the transition disk of hd 135344b-multiwavelength vlt/sphere polarimetric differential imaging

T Stolker, C Dominik, H Avenhaus, M Min… - Astronomy & …, 2016 - aanda.org
Context. The protoplanetary disk around the F-type star HD 135344B (SAO 206462) is in a
transition stage and shows many intriguing structures both in scattered light and thermal …