Results 31 to 40 of about 5,593,868 (306)
Stellar population gradients in galaxy discs from the CALIFA survey : the influence of bars [PDF]
, 2014 We acknowledge financial support from the research projects under grants AYA2010-21887-C04-03, AYA2010-21322-C03-03 and AYA2010-15081 by the Spanish Ministerio de Ciencia e Innovación.While studies of gas-phase metallicity gradients in disc galaxies are ...
Wisotzki, L. +73 more
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Supernovae and Stellar Mass Loss [PDF]
Highlights of Astronomy, 1986 AbstractType I supernovae can be modeled as the carbon deflagration of white dwarfs and Type II supernovae as the explosions of massive stars with hydrogen envelopes. The massive stars at the ends of their lives are expected to be red supergiants, which are observed to have slow, dense winds.
openaire +1 more source
Stellar Mass Loss and Pulsation [PDF]
International Astronomical Union Colloquium, 1989 AbstractMass loss at rates sufficient to alter the evolution of stars is known to occur during the pre-main sequence evolution of most stars, on the main sequence for massive stars, and during advanced evolutionary phases when the luminosity is high and the effective temperature is low.
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Mass Loss and Stellar Rotation [PDF]
Symposium - International Astronomical Union, 2004 The observational evidence for non-spherical winds of rapidly rotating hot and cool stars is presented. Models to explain equatorially enhanced winds of AGB stars and of hot B[e]-supergiants are discussed. We distinguish between models with a disk due to an increased equatorial mass flux and those with a disk due to spherical mass loss with a wind ...
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Mass loss in 2D Rotating Stellar Models
, 2011 International audienceRadiatively driven mass loss is an important factor in the evolution of massive stars. The mass-loss rates depend on a number of stellar parameters, including the effective temperature and luminosity.
Deupree, Robert G., Lovekin, Catherine
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The Independence of Stellar Mass-loss Rates on Stellar Activity Based on Solar Observations [PDF]
, 2013 Stellar mass-loss rates are an important input ingredient for stellar evolution models since they determine stellar evolution parameters such as stellar spin-down and increase in stellar luminosity through the lifetime of a star.
Cohen, Ofer (5268880), Cohen, Ofer
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The Division between Weak and Strong Explosions from Failed Supernovae
The Astrophysical Journal, 2023 Some massive stars likely fail to produce core-collapse supernovae, but these failed supernovae (FSNe) can generate an electromagnetic outburst prior to the disappearance of the star, as the mass lost to neutrinos during the stellar core collapse results
Eric R Coughlin
doaj +1 more source
The Dependence of Mass Loss on the Basic Stellar Parameters [PDF]
International Astronomical Union Colloquium, 1981 We determined the dependence of mass loss on the stellar parameters for O and B stars of various luminosities. We used four homogenous sets of mass loss rates derived by different authors from the radioflux, the infrared excess, the UV lines and Hα emission.
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The Black Hole Mass Function: From Stellar to Supermassive [PDF]
, 2023 The overall purpose of this thesis is to establish the black hole (BH) mass function, from stellar to supermassive. We divide this work into two: 1) the stellar black hole mass function covering the mass range $m_{\bullet} \sim 5 - 150 \ M_{\odot}$; 2 ...
SICILIA, ALEXANDER MARC
core
Formulating Mass-loss Rates for Sun-like Stars: A Hybrid Model Approach
The Astrophysical Journal, 2023 We observe an enhanced stellar wind mass-loss rate from low-mass stars exhibiting higher X-ray flux. This trend, however, does not align with the Sun, where no evident correlation between X-ray flux and mass-loss rate is present.
Munehito Shoda +2 more
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