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Showing 1 to 4 of 4 for “"Chemically peculiar"”.
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Rotation and magnetism in massive stars
Rotation has a number of important effects on the evolution of stars. Apart from structural changes because of the centrifugal force, turbulent mixing and meridional circulation can dramatically affect a star's chemical evolution. This leads to changes in the surface temperature and luminosity as …
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Investigating the A-type stars using Kepler data
… A stars are also seen and these tend to be chemically peculiar. For Ap stars, rotational braking is understood, but too few progenitors are observed. A review of a rare class of stars, the ‘sn’ stars, leads us to suggest these may contribute to the ‘missing’ Ap progenitors. For Am stars, we …
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Atmospheric temperature structure in the RoAp stars
… Ap (roAp) stars are a sub-group of the chemically peculiar stars of class 2 (CP2), which are characterised by peculiar spectra and anomalously strong lines of Sr, Cr, Eu and other rare earth elements. They have strong global dipole magnetic fields with effective strengths of up to a few …
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A Pathway to EMU: the SCORPIO Project
… radio emitting classes, such as Magnetic Chemically Peculiar (MCP) stars, OB stars, Flare stars and RS CVn stars from the Besancon model (Robin et al., 2003), and, from this information, from the probability of a certain spectral type star to be a radio emitter, we estimate the total …