The origin and evolution of multiple star systems

SSR Offner, M Moe, KM Kratter, SI Sadavoy… - arXiv preprint arXiv …, 2022 - arxiv.org
Observational advances over the last decade have enabled high-resolution, interferometric
studies of forming multiple systems, statistical surveys of multiplicity in star-forming regions …

The role of magnetic fields in setting the star formation rate and the initial mass function

MR Krumholz, C Federrath - Frontiers in Astronomy and Space …, 2019 - frontiersin.org
Star-forming gas clouds are strongly magnetized, and their ionization fractions are high
enough to place them close to the regime of ideal magnetohydrodyamics on all but the …

A protostellar system fed by a streamer of 10,500 au length

JE Pineda, D Segura-Cox, P Caselli, N Cunningham… - Nature …, 2020 - nature.com
Binary formation is an important aspect of star formation. One possible route for close-in
binary formation is disk fragmentation,–. Recent observations show that small-scale …

Interferometric observations of magnetic fields in forming stars

CLH Hull, Q Zhang - Frontiers in Astronomy and Space Sciences, 2019 - frontiersin.org
The magnetic field is a key ingredient in the recipe of star formation. However, the
importance of the magnetic field in the early stages of the formation of low-and high-mass …

Physical modelling of dust polarization from magnetically enhanced radiative torque alignment in protostellar cores with polaris

NC Giang, T Hoang, JG Kim… - Monthly Notices of the …, 2023 - academic.oup.com
Magnetic fields (B) are an important factor controlling the star-formation process. The
leading method to observe B orientation is to use polarized thermal emission from aligned …

There is no magnetic braking catastrophe: low-mass star cluster and protostellar disc formation with non-ideal magnetohydrodynamics

J Wurster, MR Bate, DJ Price - Monthly Notices of the Royal …, 2019 - academic.oup.com
We present results from the first radiation non-ideal magnetohydrodynamics (MHD)
simulations of low-mass star cluster formation that resolve the fragmentation process down …

Dust polarization toward embedded protostars in Ophiuchus with ALMA. III. Survey overview

SI Sadavoy, IW Stephens, PC Myers… - The Astrophysical …, 2019 - iopscience.iop.org
Abstract We present 0 farcs 25 resolution (35 au) ALMA 1.3 mm dust polarization
observations for 37 young stellar objects (YSOs) in the Ophiuchus molecular cloud. These …

Submillimetre dust polarization and opacity in the HD163296 protoplanetary ring system

WRF Dent, C Pinte, PC Cortes, F Ménard… - Monthly Notices of …, 2019 - academic.oup.com
We present ALMA images of the sub-mm continuum polarization and spectral index of the
protoplanetary ringed disc HD163296. The polarization fraction at 870 µm is measured to …

Aligned grains and scattered light found in gaps of planet-forming disk

IW Stephens, ZYD Lin, M Fernández-López, ZY Li… - Nature, 2023 - nature.com
Polarized (sub) millimetre emission from dust grains in circumstellar disks was initially
thought to be because of grains aligned with the magnetic field,. However, higher-resolution …

On Internal and External Alignment of Dust Grains in Protostellar Environments

T Hoang, VHM Phan, NC Giang… - The Astronomical …, 2022 - iopscience.iop.org
Multiwavelength observations toward protostars reveal complex properties of dust
polarization, which are challenging to interpret. Here we study the physical processes …