- ...
plateau
- This denomination refers to the remarkably constant and flat
lithium abundances among the metal-poor galactic halo dwarfs
with effective temperature between
5700 and 6300 K.
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- ...R
- This differential rotation is somewhat smaller than
the value used in Paper I. In the figures, points corresponding to
Pop I stars are calculated using the same model as those in
Paper I, but with the new preferred value for the differential
rotation.
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- ... waves
- This will be the case if
differential rotation is of the same order as
and
is large
enough.
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- ...
)
-
,
the maximum frequency required to capture the wave-mean flow interaction, is determined empirically.
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- ... Mermilliod
- http://obswww.unige.ch/webda
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- ...2003a)
- In all
the globular clusters studied up to now, all the HB stars hotter than
K
have
8-12 km s-1 (Recio-Blanco et al. 2002).
Among the cooler HB stars, there is a range of rotation rates and fast rotators appear.
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- ... rotation
- In view of the
solar data, Sills & Pinsonneault (2000) favor the class of models
with constant specific angular momentum (i.e., differential rotation)
in giant branch envelopes, retention of a rapidly rotating core on the RGB
and subsequent angular momentum redistribution from the core to the envelope on the HB.
Even this class of models requires relatively high surface rotation
(
4 km s-1) at the main sequence turnoff to explain the high rotation
rates for the cooler HB stars.
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