Protostellar collapse simulations in spherical geometry with dust coagulation and fragmentation

U Lebreuilly, V Vallucci-Goy, V Guillet… - Monthly Notices of …, 2023 - academic.oup.com
We model the coagulation and fragmentation of dust grains during the protostellar collapse
with our newly developed shark code. It solves the gas-dust hydrodynamics in a spherical …

[HTML][HTML] Recent progress with observations and models to characterize the magnetic fields from star-forming cores to protostellar disks

A Maury, P Hennebelle, JM Girart - Frontiers in Astronomy and Space …, 2022 - frontiersin.org
In this review article, we aim at providing a global outlook on the progresses made in the
recent years to characterize the role of magnetic fields during the embedded phases of the …

Toward a population synthesis of disks and planets-II. Confronting disk models and observations at the population level

A Emsenhuber, R Burn, J Weder, K Monsch… - Astronomy & …, 2023 - aanda.org
Aims. We want to find the distribution of initial conditions that best reproduces disc
observations at the population level. Methods. We first ran a parameter study using a 1D …

FORGE'd in FIRE: Resolving the End of Star Formation and Structure of AGN Accretion Disks from Cosmological Initial Conditions

PF Hopkins, MY Grudic, KY Su, S Wellons… - arXiv preprint arXiv …, 2023 - arxiv.org
It has recently become possible to zoom-in from cosmological to sub-pc scales in galaxy
simulations to follow accretion onto supermassive black holes (SMBHs). However, at some …

[HTML][HTML] Synthetic populations of protoplanetary disks: Impact of magnetic fields and radiative transfer

U Lebreuilly, P Hennebelle, T Colman, A Maury… - Astronomy & …, 2024 - aanda.org
Context. Protostellar disks are the product of angular momentum conservation during
protostellar collapse. Understanding their formation is crucial because they are the …

[HTML][HTML] Propagation of Alfvén waves in the dusty interstellar medium-Can we neglect dust inertia in molecular clouds?

P Hennebelle, U Lebreuilly - Astronomy & Astrophysics, 2023 - aanda.org
Context. Alfvén waves are fundamental magnetized modes that play an important role in the
dynamics of magnetized flows such as the interstellar medium (ISM). Aims. In a weakly …

Protoplanetary disk size under nonideal magnetohydrodynamics: A general formalism with inclined magnetic field

YN Lee, B Ray, P Marchand… - The Astrophysical …, 2024 - iopscience.iop.org
Many mechanisms have been proposed to alleviate the magnetic catastrophe, which
prevents the Keplerian disk from forming inside a collapsing magnetized core. Such …

Protostellar Disk Formation Regimes: Angular Momentum Conservation versus Magnetic Braking

HW Yen, YN Lee - The Astrophysical Journal Letters, 2024 - iopscience.iop.org
Protostellar disks around young protostars exhibit diverse properties, with their radii ranging
from less than ten to several hundred astronomical units. To investigate the mechanisms …

The role of magnetic fields in the formation of protostars, disks, and outflows

Y Tsukamoto, A Maury, B Commerçon, FO Alves… - arXiv preprint arXiv …, 2022 - arxiv.org
We present our current understanding of the formation and early evolution of protostars,
protoplanetary disks, and the driving of outflows as dictated by the interplay of magnetic …

The First Estimation of the Ambipolar Diffusivity Coefficient from Multi-scale Observations of the Class 0/I Protostar, HOPS-370

TJ Thieme, SP Lai, YN Lee, SJ Lin… - The Astrophysical …, 2024 - iopscience.iop.org
Protostars are born in magnetized environments. As a consequence, the formation of
protostellar disks can be suppressed by the magnetic field, efficiently removing the angular …