Results 21 to 30 of about 1,100,727 (344)

Dust Coagulation in Oxygen-rich Circumstellar Outflows

open access: yesThe Astrophysical Journal, 2023
We show that the inefficient growth of SiO molecules on (SiO) _x dust grains prolongs the period of maximum dust nucleation in circumstellar outflows resulting in a several orders-of-magnitude increase in the dust density near the star.
John A. Paquette   +2 more
doaj   +1 more source

AGB Winds with Gas-Dust Drift in Stellar Evolution Codes

open access: yesUniverse, 2021
A significant fraction of new metals produced in stars enter the interstellar medium in the form of dust grains. Including dust and wind formation in stellar evolution models of late-stage low- and intermediate-mass stars provides a way to quantify their
Lars Mattsson, Christer Sandin
doaj   +1 more source

A Disk Wind Driving the Rotating Molecular Outflow in CB 26

open access: yesThe Astrophysical Journal, 2023
We present the ^12 CO ( J = 2–1) sensitive molecular line and 1.3 mm continuum observations from the Submillimeter Array (SMA) of the bipolar outflow associated with the young star located in the Bok globule known as CB 26.
J. A. López-Vázquez   +2 more
doaj   +1 more source

The Contribution of Stellar Winds to Cosmic Ray Production [PDF]

open access: yes, 2018
Massive stars blow powerful stellar winds throughout their evolutionary stages from the main sequence to Wolf-Rayet phases. The amount of mechanical energy deposited in the interstellar medium by the wind from a massive star can be comparable to the ...
Jeong-Se Seo, Hyesung Kang, D. Ryu
semanticscholar   +1 more source

Constraints on Magnetic Braking from the G8 Dwarf Stars 61 UMa and τ Cet

open access: yesThe Astrophysical Journal Letters, 2023
During the first half of their main-sequence lifetimes, stars rapidly lose angular momentum to their magnetized winds, a process known as magnetic braking.
Travis S. Metcalfe   +13 more
doaj   +1 more source

Colliding Stellar Winds Structure and X-ray Emission [PDF]

open access: yes, 2018
We investigate the structure and X-ray emission from the colliding stellar winds in massive star binaries. We find that the opening angle of the contact discontinuity (CD) is overestimated by several formulae in the literature at very small values of the
J. Pittard, B. Dawson
semanticscholar   +1 more source

X-ray Shaping of Planetary Nebulae

open access: yesGalaxies, 2018
The stellar winds of the central stars of planetary nebulae play an essential role in the shaping of planetary nebulae. In the interacting stellar winds model, the fast stellar wind injects energy and momentum, which are transferred to the nebular ...
Martín A. Guerrero
doaj   +1 more source

Interactions between exoplanets and the winds of young stars

open access: yesEPJ Web of Conferences, 2014
The topology of the magnetic field of young stars is important not only for the investigation of magnetospheric accretion, but also responsible in shaping the large-scale structure of stellar winds, which are crucial for regulating the rotation evolution
Vidotto A. A.   +3 more
doaj   +1 more source

AGN Jet Mass Loading and Truncation by Stellar Winds [PDF]

open access: yes, 2006
Active Galactic Nuclei can produce extremely powerful jets. While tightly collimated, the scale of these jets and the stellar density at galactic centers implies that there will be many jet/star interactions, which can mass-load the jet through stellar ...
Blackman, Eric G., Hubbard, Alexander
core   +3 more sources

Stellar winds and coronae of low-mass Population II/III stars [PDF]

open access: yes, 2017
We investigated stellar winds from zero/low-metallicity low-mass stars by magnetohydrodynamical simulations for stellar winds driven by \Alfven waves from stars with mass $M_{\star}=(0.6-0.8)M_{\odot}$ and metallicity $Z=(0-1)Z_{\odot}$, where $M_{\odot}$
T. Suzuki
semanticscholar   +1 more source

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