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Books > Science & Mathematics > Physics > Applied physics & special topics > Astrophysics
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Angular Momentum and Mass Loss for Hot Stars (Paperback, Softcover reprint of the original 1st ed. 1990)
Loot Price: R5,786
Discovery Miles 57 860
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Angular Momentum and Mass Loss for Hot Stars (Paperback, Softcover reprint of the original 1st ed. 1990)
Series: NATO Science Series C, 316
Expected to ship within 10 - 15 working days
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Fundamental unsolved problems of stellar astrophysics include the
effects of angular momentum on stellar structure and evolution, the
nature and efficiency of the processes by which angular momentum is
redistributed within and lost from stars, and the role that stellar
rotation plays in enhancing or driving stellar mass loss. There
appears to be a qualitative change in the nature and efficiency of
these mechanisms near spectral type FO: hotter (more massive) stars
typically retain more angular momentum at least until they reach
the main sequence, while cooler stars typically spin down quickly.
For the hotter stars, recent work suggests a strong link between
the type of pulsation behavior, the mass loss rates, and the
rotation velocity. If the same mechanisms are able to drive mass
loss from the main sequence A stars, as has recently been proposed,
then the current interpretations of a number of observations will
be drastically affected: e. g. the ages of clusters may be
incorrect by up to a factor of two, and the surface abundances of
isotopes of He, Li and Be may no longer give constraints on
cosmological nucleosynthesis. There are also effects on the
evolution of the abundances of elements in the interstellar medium
and on the general evolution of populations of stars. Thus the
questions of the mechanisms of angular momentum and mass loss of
stars more massive than the sun is important not only for stellar
studies but for the foundations of much of modern astrophysics.
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