[HTML][HTML] Empirical constraints on turbulence in proto-planetary discs

GP Rosotti - New Astronomy Reviews, 2023 - Elsevier
Proto-planetary discs, the birth environment of planets, are an example of a structure
commonly found in astrophysics, accretion discs. Identifying the mechanism responsible for …

The interstellar interlopers

D Jewitt, DZ Seligman - Annual Review of Astronomy and …, 2023 - annualreviews.org
Interstellar interlopers are bodies formed outside of the Solar System but observed passing
through it. The first two identified interlopers, 1I/'Oumuamua and 2I/Borisov, exhibited …

A highly settled disk around oph163131

M Villenave, KR Stapelfeldt, G Duchêne… - The Astrophysical …, 2022 - iopscience.iop.org
High dust density in the midplane of protoplanetary disks is favorable for efficient grain
growth and can allow fast formation of planetesimals and planets, before disks dissipate …

Molecules with ALMA at planet-forming scales (MAPS). III. Characteristics of radial chemical substructures

CJ Law, RA Loomis, R Teague, KI Öberg… - The Astrophysical …, 2021 - iopscience.iop.org
The Molecules with ALMA at Planet-forming Scales (MAPS) Large Program provides a
detailed, high-resolution (∼ 10–20 au) view of molecular line emission in five protoplanetary …

Early Planet Formation in Embedded Disks (eDisk). II. Limited Dust Settling and Prominent Snow Surfaces in the Edge-on Class I Disk IRAS 04302+ 2247

ZYD Lin, ZY Li, JJ Tobin, N Ohashi… - The Astrophysical …, 2023 - iopscience.iop.org
While dust disks around optically visible, Class II protostars are found to be vertically thin,
when and how dust settles to the midplane are unclear. As part of the Atacama Large …

Razor-thin dust layers in protoplanetary disks: Limits on the vertical shear instability

CP Dullemond, A Ziampras, D Ostertag… - Astronomy & …, 2022 - aanda.org
Context. Recent observations with the Atacama Large Millimeter Array (ALMA) have shown
that the large dust aggregates observed at millimeter wavelengths settle to the midplane into …

Dust Coagulation Reconciles Protoplanetary Disk Observations with the Vertical Shear Instability. I. Dust Coagulation and the VSI Dead Zone

T Pfeil, T Birnstiel, H Klahr - The Astrophysical Journal, 2023 - iopscience.iop.org
Protoplanetary disks exhibit a vertical gradient in angular momentum, rendering them
susceptible to the vertical shear instability (VSI). The most important condition for the onset …

Grain-size measurements in protoplanetary disks indicate fragile pebbles and low turbulence

H Jiang, E Macías, OM Guerra-Alvarado… - Astronomy & …, 2024 - aanda.org
Context. Constraining the turbulence level and pebble size in protoplanetary disks is an
essential initial step in understanding the aerodynamic properties of pebbles, which are …

Dust enrichment and grain growth in a smooth disk around the DG Tau protostar revealed by ALMA triple bands frequency observations

S Ohashi, M Momose, A Kataoka… - The Astrophysical …, 2023 - iopscience.iop.org
Characterizing the physical properties of dust grains in a protoplanetary disk is critical to
comprehending the planet formation process. Our study presents Atacama Large Millimeter …

Herbig Stars: A Quarter Century of Progress

SD Brittain, I Kamp, G Meeus, RD Oudmaijer… - Space Science …, 2023 - Springer
Abstract Herbig Ae/Be stars are young contracting stars on the radiative track in the HR
diagram on their way to the main sequence. These stars provide a valuable link between …