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Energy liberation in red giant stars

Physica, 1943
Summary The theory of Gamow and Teller about the energy liberation in red giants is criticized. It is shown, that the rate of evolution predicted by this theory is in contradiction with the secular variations in the periods of Cepheids. The reverse conclusions, at which Greenfield arrived, are shown to be erroneous.
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The onset of photometric variability in red giant stars.

1997
The onset of variability in red giant stars is studied from the data collected by the `Long-Term Photometry of Variables' project which operates at ESO (La Silla) since 1982. The differential nature of the observations combined with a multi-night reduction algorithm enables to study the variability of over 50 red giants with an accuracy of the order of
Jorissen, A.   +3 more
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Assimilation of Planets by Red Giant Stars

2017
The typical red giant star rotates slowly. This characteristic is expected from the conservation of angular momentum as these stars expand during their evolution. Nevertheless, a small percentage of red giant stars are rapidly rotating. One possible source of these stars' excess angular momenta is the orbital angular momentum of a planetary companion ...
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Panoramix: The red giant heartbeat star

2013
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Hambleton, K.   +6 more
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Remarks on red giant and supergiant stars

2008
The preceeding review paper by Hollis Johnson and these remarks summarize portions of a half-day meeting held immediately prior to the Fifth Cool Stars Workshop. This special session was held in order to allow the astronomers interested in problems related to the atmospheres and evolution of red giant and supergiant stars to share ideas on selected ...
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Magnetic fields of 30 to 100 kG in the cores of red giant stars

Nature, 2022
Gang Li   +2 more
exaly  

Fast core rotation in red-giant stars as revealed by gravity-dominated mixed modes

Nature, 2011
Jørgen Christensen-Dalsgaard   +2 more
exaly  

Gravity modes as a way to distinguish between hydrogen- and helium-burning red giant stars

Nature, 2011
Jørgen Christensen-Dalsgaard   +2 more
exaly  

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