Results 271 to 280 of about 5,593,868 (306)

Stellar Adiabatic Mass Loss in Binary Stars

AIP Conference Proceedings, 2010
Stellar adiabatic mass loss model show us the approximate responses of the donor stars suffering rapid mass loss. According to the radius response and the change of total energy during adiabatic mass loss, we present our results on the criteria of dynamical mass transfer instability and the limits on common envelope evolution.
Hongwei Ge, Vicky Kologera
exaly   +2 more sources

Stellar mass loss and atmospheric instability

International Astronomical Union Colloquium, 1988
AbstractA review is given of rate of mass-loss values in the upper part of the Hertzsprung-Russell diagram. Near the luminosity limit of stellar existance = −10−4 M⊙ yr−1. Episodical mass loss in bright variable super- and hypergiants does not significantly increase this value. For Wolf-Rayet stars the rate of mass loss is larger by a factor 140 than
Cornelis de Jager, Hans Nieuwenhuijzen
openaire   +1 more source

IRAS and cool stellar mass loss

2008
We show that the band strength of the 9.7μm silicate dust feature is well correlated with the CO and OH-maser line strengths, and so provides a reliable measure of mass-loss rates for cool, luminous, Oxygen-rich stars. Correlations are presented between mass-loss rates and various physical properties of the M-Supergiants in the IRAS LRS Catalogue.
C. J. Skinner, B. Whitmore
openaire   +1 more source

Mass Loss and Stellar Evolution

1979
The available observational evidence about stellar winds and mass loss is briefly reviewed, and its implications for stellar evolution are discussed. Particular emphasis is placed on post-main sequence evolution of low-mass and intermediate-mass stars, including the final evolution from red giant to the white dwarf stage.
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Stellar winds and mass loss of a rotating star

Astrophysics and Space Science, 1972
The mass loss to be expected from the corona of a rotating F2-star is calculated. The rotation is supposed to be rigid up to a certain distances, as if it were maintained by a strong magnetic field. Dependent on the values of the rotational velocity the mass loss can increase to 26–40% forvrot up to 200 km s−1.
J. P. De Grève, C. De Loore, C. De Jager   +2 more
openaire   +1 more source

Mass Loss in Young Stellar Objects

Astrophysics and Space Science, 1998
Various aspects of mass loss associated with Young Stellar Objects are reviewed. The classification of the driving sources of the outflows is presented, and the properties of the youngest sources, the Class 0 protostars, are given. The observed properties of the molecular, atomic, and neutral components of the bipolar flows are discussed and critically
openaire   +1 more source

Stellar Winds and Mass Loss in A-Type Supergiants

Astrophysics and Space Science, 1998
We examine the relationship between the surface escape velocities and wind terminal velocities of A-type supergiants according to the radiation-driven wind theory.
E. Verdugo, A. Talavera, A.I. Gómez de Casto   +2 more
openaire   +1 more source

Mass loss in early stages of stellar evolution

Nature, 1976
IT has been known for some time that stars lose mass between their birth on the main sequence and their death as white dwarfs (or as neutron stars or black holes for more massive stars), and the existence of the solar wind shows that not all the mass loss occurs in a last gasp to form a planetary nebula.
D. S. P. DEARBORN, M. KOZLOWSKI, D. SCHRAMM   +2 more
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Stellar pulsation, atmospheric structure, and mass loss

2008
Pulsation in one or many radial and/or non-radial modes may be a universal characteristic of stars. The possible consequences of pulsation include an increase in the atmospheric scale height (“levitation”), the heating of a region of the atmosphere to a temperature well in excess of the radiative equilibrium temperatur, and the driving of substantial ...
L. A. Willson, G. H. Bowen
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Effects of Mass Loss on Stellar Evolution

1981
Session I - Winds From Early Type Stars: Observations.- Observations of stellar winds in early type stars (invited lecture).- The dependence of mass loss on the basic stellar parameters. (invited paper).- The velocity characteristics of WR stellar winds.- The iron curtain of the WC 9 star HD 164270..- Is a stellar wind inherent in WR-stars throughout ...
openaire   +1 more source