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Irregular Red-Giant Variable Stars

Published online by Cambridge University Press:  12 April 2016

M. Querci  and
F. Querci
M. Querci
Affiliation:
Observatoire Midi-Pyrenees
F. Querci
Affiliation:
Observatoire Midi-Pyrenees

Extract

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Aperiodic intrinsic variability becomes increasingly evident for a greater number of red giant and supergiant stars as observations become more technically refined and extended over a longer time. All red variables show an erratic temporal behavior to some degree. Even Miras, with their temporal changes in maximum brightness and irregular fluctuations in the cycle length, are not perfect clocks.

Type
4. The Variability-Evolution Connection
Information
International Astronomical Union Colloquium , Volume 106: Evolution of Peculiar Red Giant Stars , 1989 , pp. 258 - 268
Copyright
Copyright © Cambridge University Press 1989

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