Rejuvenating infall: a crucial yet overlooked source of mass and angular momentum

M Kuffmeier, SS Jensen, T Haugbølle - The European Physical Journal …, 2023 - Springer
MHD models and the observation of accretion streamers confirmed that protostars can
undergo late accretion events after the initial collapse phase. To provide better constraints …

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 …

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 …

Co-evolution of dust grains and protoplanetary disks

Y Tsukamoto, MN Machida… - Publications of the …, 2023 - academic.oup.com
We propose a new evolutionary process for protoplanetary disks, the co-evolution of dust
grains and protoplanetary disks, revealed by dust–gas two-fluid non-ideal …

Fast methods for tracking grain coagulation and ionization-III. Protostellar collapse with non-ideal MHD

P Marchand, U Lebreuilly, MM Mac Low… - Astronomy & …, 2023 - aanda.org
Dust grains influence many aspects of star formation, including planet formation and the
opacities for radiative transfer, chemistry, and the magnetic field via Ohmic, Hall, as well as …

FAUST-IX. Multiband, multiscale dust study of L1527 IRS. Evidence for variations in dust properties within the envelope of a class 0/I young stellar object

L Cacciapuoti, E Macias, AJ Maury… - Astronomy & …, 2023 - aanda.org
Context. Early dust grain growth in protostellar envelopes infalling on young disks has been
suggested in recent studies, supporting the hypothesis that dust particles start to …

Impact of turbulence intensity and fragmentation velocity on dust particle size evolution and non-ideal magnetohydrodynamics effects

Y Kawasaki, MN Machida - Monthly Notices of the Royal …, 2023 - academic.oup.com
We investigate the influence of dust particle size evolution on non-ideal
magnetohydrodynamic (MHD) effects during the collapsing phase of star-forming cores …

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 …

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 …

Ring Gap Structure around Class I Protostar WL 17

A Shoshi, N Harada, K Tokuda… - The Astrophysical …, 2024 - iopscience.iop.org
WL 17 is a Class I object and was considered to have a ring–hole structure. We analyzed
the structure around WL 17 to investigate the detailed properties of this object. We used …