D. Arzoumanian

Rc-band polarimetric survey in Sgr spiral arm

Yasuo Doi, Nakamura K, Koji S. Kawabata, M. Matsumura et autres

jp, us, br, nl, ca (code pays fourni par la source)

Probing the ion-neutral drift velocity toward the L1544 prestellar core

D. Arzoumanian, S. Spezzano, Tommaso Grassi, Paola Caselli et autres

Context. The dynamical role of the magnetic field in the star formation process is tightly linked to the coupling between matter and the field. This coupling is due to the interaction between ions and neutrals in the partially ionized interstellar medium. When …

de, jp, fr (code pays fourni par la source)

BISTRO Survey: Gravity-dominated and Magnetically Regulated Star Formation in M17 SW

Mengke Zhao, Keping Qiu, Ji‐hyun Kang, Xindi Tang et autres

Abstract We present high-resolution magnetic field maps of the M17 SW molecular cloud using JCMT 850 μ m dust polarization at scale of 14″. The magnetic field exhibits a distinct arc-like structure that encircles three dense clumps (C1, C2, and C3). By …

cn, kr, gb, jp, ye, ca, in, vn, tw, us (code pays fourni par la source)

From Interfilamentary Gas to Filaments and Hubs: Gas Flows in the Monoceros R2 Hub–Filament System

Jihye Hwang, D. Arzoumanian, Yoshito Shimajiri, Masahiro N. Machida et autres

Abstract Hub–filament systems (HFSs) play an important role in the formation of massive stars and star clusters. Although the velocity structures along dense filaments have been studied, the gas kinematics in the low-density interfilament regions has not been investigated. We use 13 …

jp, kr, pt (code pays fourni par la source)

Fragmenting Filaments and Evolving Cores -- Insights from Dust Polarisation Study of a filament in Northern Orion B

Kshitiz K. Mallick, D. Arzoumanian, Satoko Takahashi, Ray S. Furuya et autres

We present an analysis of polarised dust emission at 850 micron for a parsec long filament in the northern part of the Orion B molecular cloud. The region was observed by the JCMT SCUBA-2/POL-2 polarimeter. The filament has a line mass (~80 …

Fragmenting Filaments and Evolving Cores -- Insights from Dust Polarisation Study of a filament in Northern Orion B

Kshitiz K. Mallick, D. Arzoumanian, Satoko Takahashi, Ray S. Furuya et autres

We present an analysis of polarised dust emission at 850 micron for a parsec long filament in the northern part of the Orion B molecular cloud. The region was observed by the JCMT SCUBA-2/POL-2 polarimeter. The filament has a line mass (~80 …

jp, gb (code pays fourni par la source)

FIRESTORM I: stellar feedback and gas kinematics in the evolved W40 hub-filament system

Ram Kesh Yadav, L. K. Dewangan, A. Zavagno, Jedsada Maklai et autres

ABSTRACT The FIRESTORM project – Feedback-Induced Regions and Emission from Star-forming Tracers of ObseRvable Molecular Gas – has targeted four star-forming regions to quantify the impact of stellar feedback on star formation. In this paper, we present multiwavelength results for one of …

th, in, kr, fr, de, us, jp, ru, my (code pays fourni par la source)

First Detection of Hourglass-shaped Magnetic Fields in the L1544 Prestellar Core

Shinyoung Kim, Chang Won Lee, Kate Pattle, D. Ward–Thompson et autres

kr, pk, jp, ca, gb, tw, us, in, cn, cl (code pays fourni par la source)

Hunting pre-stellar cores with APEX: Overview

P. Caselli, S. Spezzano, E. Redaelli, J. Harju et autres

Context . Pre-stellar cores are centrally concentrated starless cores on the verge of star formation and they represent the initial conditions for star and planet formation. Pre-stellar cores host an active organic chemistry and isotopic fractionation, kept stored in thick icy mantles, …

de, us, jp, fr, se (code pays fourni par la source)

Evolution of magnetized hub-filament systems

M. S. N. Kumar, D. Arzoumanian, Shu‐ichiro Inutsuka, Ray S. Furuya et autres

Context . Hub-filament systems (HFSs) span a broad range of star-forming gas densities and are widely recognized as the progenitors of open star clusters. They serve as ideal targets for investigating the physical properties of star-forming gas and observing how dense gas …

pt, jp (code pays fourni par la source)

Cosmic-ray ionisation rate in low-mass cores: The role of the environment

E. Redaelli, S. Bovino, G. Sabatini, D. Arzoumanian et autres

Context . Cosmic rays drive several key processes for the chemistry and dynamical evolution of star-forming regions. Their effect is quantified mainly by means of the cosmic-ray ionisation rate ζ 2 . Aims . We aim to obtain a sample of ζ …

Evolution of magnetized hub-filament systems: Comparing the observed properties of W3(OH), W3 Main, and S 106

M. S. N. Kumar, D. Arzoumanian, Shu‐ichiro Inutsuka, Ray S. Furuya et autres

In this study, we examine three cluster-forming hub-filament systems (HFS) - W3(OH), W3 Main, and S 106 - spanning evolutionary stages from early to advanced, with a focus on their magnetic field (B-field) structures and filament line-mass distributions. Our goal is to …