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Related papers: Massive Outflows Driven by Magnetic Effects II: Co…

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We characterize the physical properties of star-formation driven outflows in a sample of 29 local dwarf galaxies drawn from the Dwarf Galaxy Survey. We make use of Herschel/PACS archival data to search for atomic outflow signatures in the…

To test theoretical models of massive star formation it is important to compare their predictions with observed systems. To this end, we conduct CO molecular line radiative transfer post-processing of 3D magneto-hydrodynamic (MHD)…

Astrophysics of Galaxies · Physics 2024-03-11 Duo Xu , Jonathan C. Tan , Jan E. Staff , Jon P. Ramsey , Yichen Zhang , Kei E. Tanaka

Recent three-dimensional magnetohydrodynamical simulations of the common-envelope interaction revealed the self-consistent formation of bipolar magnetically driven outflows launched from a toroidal structure resembling a circumbinary disk.…

Angular momentum transport in protostellar disks can be achieved by the action of a large scale magnetic field that runs vertically through the disk. The magnetic field centrifugally drives material from the disk surfaces into a wind,…

Astrophysics · Physics 2008-02-03 Mark Wardle

The role of MHD turbulence in astrophysical environments is still highly debated. An important question that permeates this debate is the transport of magnetic flux. This is particularly important, for instance, in the context of star…

Protostellar discs play an important role in star formation, acting as the primary mass reservoir for accretion onto young stars and regulating the extent to which angular momentum and gas is released back into stellar nurseries through the…

Solar and Stellar Astrophysics · Physics 2017-08-09 C. A. Nolan , R. Salmeron , C. Federrath , G. V. Bicknell , R. S. Sutherland

In this paper, we study the dust dynamics in the molecular outflow using an analytical magnetohydrodynamical outflow model. Specifically, we investigate the maximum size of dust grains $a_{\rm d,max}$ that can be lifted by the outflow and…

Astrophysics of Galaxies · Physics 2025-05-16 Hayato Uchimura , Kudoh Takahiro , Yusuke Tsukamoto

By performing local three-dimensional MHD simulations of stratified accretion disks, we investigate disk winds driven by MHD turbulence. Initially given weak vertical magnetic fields are effectively amplified by magnetorotational…

Astrophysics · Physics 2015-05-13 T. K. Suzuki , S. Inutsuka

Magnetohydrodynamic disk-winds play a key role in the formation of massive stars by providing the fine-tuning between accretion and ejection, where excess angular momentum is redirected away from the disk, allowing further mass growth.…

Solar and Stellar Astrophysics · Physics 2025-01-30 O. S. Bayandina , L. Moscadelli , R. Cesaroni , M. T. Beltrán , A. Sanna , C. Goddi

Like their lower mass siblings, massive protostars can be expected to: a) be surrounded by circumstellar disks and b) launch magnetically-driven jets and outflows. The disk formation and global evolution is thereby controlled by advection…

Solar and Stellar Astrophysics · Physics 2023-01-18 André Oliva , Rolf Kuiper

Jets and outflows are commonly observed in young stellar objects (YSOs), yet their origins remain debated. Using 3D non-ideal magnetohydrodynamic (MHD) simulations of a circumstellar disk threaded by a large-scale open poloidal magnetic…

Solar and Stellar Astrophysics · Physics 2025-07-03 Yisheng Tu , Zhi-Yun Li , Zhaohuan Zhu , Chun-Yen Hsu , Xiao Hu

(Abridged) Most massive protostars exhibit bipolar outflows. Nonetheless, there is no consensus regarding the mechanism at the origin of these outflows, nor on the cause of the less-frequently observed monopolar outflows. We aim to identify…

Solar and Stellar Astrophysics · Physics 2021-12-08 R. Mignon-Risse , M. González , B. Commerçon

The nonlinear dynamics of outflows driven by magnetic explosion on the surface of a compact star is investigated through special relativistic magnetohydrodynamic simulations. We adopt, as the initial equilibrium state, a spherical stellar…

High Energy Astrophysical Phenomena · Physics 2015-05-27 Jin Matsumoto , Youhei Masada , Eiji Asano , Kazunari Shibata

Galactic winds and mass outflows are observed both in nearby starburst galaxies and in high-redshift star-forming galaxies. In this paper we develop a simple analytic model to understand the observed superwind phenomenon. Our model is built…

Astrophysics · Physics 2014-10-13 Chenggang Shu , H. J. Mo , Shude Mao

Very long baseline interferometry (VLBI) observations of SiO masers in Orion Source I has enabled for the first time to resolve the outflow from a high-mass protostar in the launch and collimation region. Therefore, Source I provides a…

Solar and Stellar Astrophysics · Physics 2015-06-11 B. Vaidya , C. Goddi

Studying outflows from young massive star-forming clusters allows one to deduce physical processes that lead to the formation of the most massive stars. I will review the current state of high-spatial-resolution interferometric (sub-)mm…

Astrophysics · Physics 2007-05-23 H. Beuther

We use three-dimensional radiation hydrodynamic (RHD) simulations to study the formation of massive star clusters under the combined effects of direct ultraviolet (UV) and dust-reprocessed infrared (IR) radiation pressure. We explore a…

Astrophysics of Galaxies · Physics 2023-03-29 Shyam H. Menon , Christoph Federrath , Mark R. Krumholz

We investigate how misalignment between the core angular momentum and the large-scale magnetic field affects protostellar outflows, and whether a single protostellar system can drive multiple outflow components. We perform three-dimensional…

Solar and Stellar Astrophysics · Physics 2026-04-24 Shingo Hirano , Yuri Aikawa , Masahiro N. Machida

We review some aspects of the bipolar molecular outflow phenomenon. In particular, we compare the morphological properties, energetics and velocity structures of outflows from high and low-mass protostars and investigate to what extent a…

Astrophysics · Physics 2007-05-23 John Richer , Debra Shepherd , Sylvie Cabrit , Rafael Bachiller , Ed Churchwell

The evolution of protostellar outflows is investigated under different mass accretion rates in the range $\sim10^{-5}-10^{-2} {\rm M}_\odot$ yr$^{-1}$ with three-dimensional magnetohydrodynamic simulations. A powerful outflow always appears…

Astrophysics of Galaxies · Physics 2020-10-21 Masahiro N. Machida , Takashi Hosokawa