Results 21 to 30 of about 5,969 (301)

The magnetic fields and stellar winds of the mature late F-stars: β Virginis and θ Draconis [PDF]

open access: yes, 2022
International audienceMapping the large-scale magnetic field in late F-type stars is important for understanding the nature of the stellar dynamo and the dynamics of thin outer convection zones.
Folsom, C. P.   +6 more
core   +1 more source

Solar and Stellar Winds [PDF]

open access: yesHighlights of Astronomy, 1989
AbstractThis review discusses winds from stars with hot outer atmospheres, stars with coronae similar to the sun. It illustrates how solar observations can be used to test a theoretical model for solar-stellar winds, and thereby provide some insights concerning applications to studying winds from stars other than the sun.
openaire   +1 more source

Stellar Winds in A-Type Supergiants [PDF]

open access: yesSymposium - International Astronomical Union, 1994
A-type supergiants are just at the boundary between the early type supergiants, with strong stellar winds driven by radiation pressure and the cool supergiants in which the origin of mass loss is the dissipation of mechanical energy. The mechanisms involved in the mass loss processes in A supergiants as a whole, are still uncertain.
E. Verdugo, A. Talavera
openaire   +1 more source

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

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

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

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

Stellar winds in a-type supergiants [PDF]

open access: yesInternational Astronomical Union Colloquium, 1989
The contribution of A supergiant stars to the return of mass and energy to the interstellar medium is not very important. Abbott (1982) analised a sample of early stars and concluded that B and A supergiants provided less than 8 % of the mass input to the ISM by stellar winds.
A. Talavera, A.I. Gomez de Castro
openaire   +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

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

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