Inference from adiabatic analysis of solar-like oscilations in red giants
نویسندگان
چکیده
منابع مشابه
Non - adiabatic Oscillations of Red Giants
Using our non-local time-dependent theory of convection, the linear non-adiabatic oscillations of 10 evolutionary model series with masses of 1–3M⊙ are calculated. The results show that there is a red giant instability strip in the lower temperature side of the Hertzsprung-Russel (HR) diagram which goes along the sequences of the red giant branch (RGB) and the asymptotic giant branch (AGB). For...
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Context. Observations during the first long run (∼150 days) in the exo-planet field of CoRoT increase the number of G-K giant stars for which solar-like oscillations are observed by a factor of 100. This opens the possibility to study the characteristics of their oscillations in a statistical sense. Aims. We aim to understand the statistical distribution of the frequencies of maximum oscillatio...
متن کاملTheoretical amplitudes and lifetimes of non-radial solar-like oscillations in red giants
Context. Solar-like oscillations have been observed in numerous red giants from ground and from space. An important question arises: could we expect to detect non-radial modes probing the internal structure of these stars? Aims. We investigate under what physical circumstances non-radial modes could be observable in red giants; what would be their amplitudes, lifetimes and heights in the power ...
متن کاملSpecial feature Theoretical amplitudes and lifetimes of non-radial solar-like oscillations in red giants
Context. Solar-like oscillations have been observed in numerous red giants from ground and from space. An important question arises: could we expect to detect non-radial modes probing the internal structure of these stars? Aims. We investigate under what physical circumstances non-radial modes could be observable in red giants; what would be their amplitudes, lifetimes and heights in the power ...
متن کاملSolar-like oscillations in red giants in the CoRoT exo-field
Asteroseismic observations from space can provide us with long time series of uninterrupted high quality data for many stars at the same time. The CoRoT satellite (Convection Rotation and planetary Transits) was launched successfully in December 2006 and provides high precision photometery for a large number of stars. Here we present our research on (late G and K) red giant stars observed durin...
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ژورنال
عنوان ژورنال: Astronomische Nachrichten
سال: 2010
ISSN: 0004-6337
DOI: 10.1002/asna.201011447