Results 11 to 20 of about 308 (201)
Outflows in star-forming galaxies: Stacking analyses of resolved winds and the relation to their hosts’ properties [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT Outflows form an integral component in regulating the gas cycling in and out of galaxies, although their impact on the galaxy hosts is still poorly understood. Here we present an analysis of 405 high mass (log M*/M⊙ ≥ 10), star-forming galaxies (excluding AGN) with low inclinations at z ∼ 0, using stacking techniques of the Na D
G W Roberts-Borsani +3 more
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Modeling of the Wind/Disk Outflow from Be Stars [PDF]
Universe, 2021 The objective of this work is to reproduce the formation of the fast polar wind and viscous disk outflow from Be stars in a unified physical picture. Numerical modeling of the plasma outflow from fast rotating stars was performed taking into account the acceleration of the plasma due to scattering of the radiation of the star in lines of plasma ions ...
Sergey Bogovalov, Maxim Petrov
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Collimated Outflow Formation via Binary Stars. 3-D Simulations of AGB Wind and Disk Wind Interactions [PDF]
The Astrophysical Journal, 2003 We present three-dimensional hydrodynamic simulations of the interaction of a slow wind from an asymptotic giant branch(AGB) star and a jet blown by an orbiting companion. The jet or "Collimated Fast Wind" is assumed to originate from an accretion disk which forms via Bondi accretion of the AGB wind or Roche lobe overflow.
Garcia-Arredondo, F., Frank, Adam
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Accretion, Outflows, and Winds of Magnetized Stars [PDF]
Space Science Reviews, 2015 Many types of stars have strong magnetic fields that can dynamically influence the flow of circumstellar matter. In stars with accretion disks, the stellar magnetic field can truncate the inner disk and determine the paths that matter can take to flow onto the star.
Romanova, M. M., Owocki, S. P.
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Wind morphology around cool evolved stars in binaries [PDF]
Astronomy & Astrophysics, 2020 Context. The late evolutionary phase of low- and intermediate-mass stars is strongly constrained by their mass-loss rate, which is orders of magnitude higher than during the main sequence. The wind surrounding these cool expanded stars frequently shows nonspherical symmetry, which is thought to be due to an unseen companion orbiting the donor star. The
El Mellah, I. +4 more
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Binary outflows from young stars: interaction of co-orbital jet and wind [PDF]
Monthly Notices of the Royal Astronomical Society, 2019 Abstract Jets from young stellar objects provide insight into the workings of the beating heart at the centre of star forming cores. In some cases, multiple pulsed outflows are detected such as the atomic and molecular jets from a proposed binary system in the T Tauri star HH 30.
Lynch, Chris J.R. +2 more
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The SILCC project – III. Regulation of star formation and outflows by stellar winds and supernovae [PDF]
Monthly Notices of the Royal Astronomical Society, 2016 23 pages; submitted to ...
Gatto, Andrea +11 more
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Shock-heated radiation-driven outflows as a solution to the weak-wind problem of late O-type stars [PDF]
Astronomy & Astrophysics, 2021 Context. Radiation-driven mass loss is key to our understanding of massive-star evolution. However, for low-luminosity O-type stars there are big discrepancies between theoretically predicted and empirically derived mass-loss rates (called the weak-wind problem). Aims.
Lagae, Cis +4 more
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Mass loss from dusty, low outflow-velocity AGB stars [PDF]
Astronomy & Astrophysics, 2007 Context: CO rotational lines are frequently used to trace the outflows from AGB stars. Some profiles are composite, with a narrow component super-imposed on a broader one. These profiles have been interpreted in different ways, calling for episodic mass loss, a bipolar flow, or a circumstellar disk.
Winters, J. M. +3 more
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Modeling of the Wind/Disk Outflow from Be Stars II: Formation of the Keplerian Disk
Universe, 2022 Computer modeling of the outflow from Be stars is performed. In our approach, processes of turbulence excitation and turbulent viscosity are added to the conventional model of the radiation driven winds. The objective of our study is to reproduce from the first principles the main features of the outflow from Be stars: a fast polar wind and a slow ...
Sergey Bogovalov, Maxim Petrov
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