Accretion onto pre-main-sequence stars

L Hartmann, G Herczeg, N Calvet - Annual Review of Astronomy …, 2016 - annualreviews.org
Accretion through circumstellar disks plays an important role in star formation and in
establishing the properties of the regions in which planets form and migrate. The …

Structured distributions of gas and solids in protoplanetary disks

J Bae, A Isella, Z Zhu, R Martin, S Okuzumi… - arXiv preprint arXiv …, 2022 - arxiv.org
Recent spatially-resolved observations of protoplanetary disks revealed a plethora of
substructures, including concentric rings and gaps, inner cavities, misalignments, spiral …

Anisotropic infall and substructure formation in embedded disks

A Kuznetsova, J Bae, L Hartmann… - The Astrophysical …, 2022 - iopscience.iop.org
The filamentary nature of accretion streams found around embedded sources suggests that
protostellar disks experience heterogenous infall from the star-forming environment …

Molecules with ALMA at Planet-forming Scales (MAPS). XIX. Spiral arms, a tail, and diffuse structures traced by CO around the GM Aur disk

J Huang, EA Bergin, KI Öberg… - The Astrophysical …, 2021 - iopscience.iop.org
The concentric gaps and rings commonly observed in protoplanetary disks in millimeter
continuum emission have lent the impression that planet formation generally proceeds …

[HTML][HTML] CCAT-prime collaboration: science goals and forecasts with Prime-Cam on the Fred Young Submillimeter Telescope

M Aravena, JE Austermann, K Basu… - The Astrophysical …, 2022 - iopscience.iop.org
We present a detailed overview of the science goals and predictions for the Prime-Cam
direct-detection camera–spectrometer being constructed by the CCAT-prime collaboration …

Quantifying Variability of Young Stellar Objects in the Mid-infrared Over 6 Years with the Near-Earth Object Wide-field Infrared Survey Explorer

W Park, JE Lee, CC Peña, D Johnstone… - The Astrophysical …, 2021 - iopscience.iop.org
Variability in young stellar objects (YSOs) can be caused by various time-dependent
phenomena associated with star formation, including accretion rates, geometric changes in …

A Keplerian disk with a four-arm spiral birthing an episodically accreting high-mass protostar

RA Burns, Y Uno, N Sakai, J Blanchard, Z Rosli… - Nature …, 2023 - nature.com
High-mass protostars (M⋆> 8 M⊙) are thought to gain the majority of their mass via short,
intense bursts of growth. This episodic accretion is thought to be facilitated by gravitationally …

The Rate, Amplitude, and Duration of Outbursts from Class 0 Protostars in Orion

W Zakri, ST Megeath, WJ Fischer… - The Astrophysical …, 2022 - iopscience.iop.org
At least half of a protostar's mass is accreted in the Class 0 phase, when the central protostar
is deeply embedded in a dense, infalling envelope. We present the first systematic search …

Molecular Mapping of DR Tau's Protoplanetary Disk, Envelope, Outflow, and Large-scale Spiral Arm

J Huang, EA Bergin, J Bae, M Benisty… - The Astrophysical …, 2023 - iopscience.iop.org
DR Tau has been noted for its unusually high variability in comparison with other T Tauri
stars. Although it is one of the most extensively studied pre-main-sequence stars …

Magnetically activated accretion outbursts of pre-main-sequence discs

J Cleaver, L Hartmann, J Bae - Monthly Notices of the Royal …, 2023 - academic.oup.com
We investigate whether triggering of the magnetorotational instability (MRI) in protoplanetary
discs can account for the wide diversity of observed accretion outbursts. We show that short …