Beryllium abundances along the evolutionary sequence of the open cluster IC 4651-A new test for hydrodynamical stellar models

@article{Smiljanic2009BerylliumAA,
  title={Beryllium abundances along the evolutionary sequence of the open cluster IC 4651-A new test for hydrodynamical stellar models},
  author={Rodolfo Smiljanic and Luca Pasquini and Corinne Charbonnel and Nad{\`e}ge Lagarde},
  journal={Astronomy and Astrophysics},
  year={2009},
  volume={510}
}
Context. Previous analyses of lithium abundances in main sequence and red giant stars have revealed the action of mixing mechanisms other than convection in stellar interiors. Beryllium abundances in stars with Li abundance determinations can offer valuable complementary information on the nature of these mechanisms. Aims. Our aim is to derive Be abundances along the whole evolutionary sequence of an open cluster. We focus on the well-studied open cluster IC 4651. These Be abundances are used… Expand
Beryllium abundances along the evolutionary sequence of the open cluster IC 4651
Abstract The simultaneous investigation of Li and Be in stars is a powerful tool in the study of the evolutionary mixing processes. Here, we present beryllium abundances in stars along the wholeExpand
Mixing at young ages: beryllium abundances in cool main-sequence stars of the open clusters IC 2391 and IC 2602
Context. Determination of lithium abundances in stars of young clusters has shown that they deplete Li by different degrees during their pre-main sequence phase. Beryllium abundances areExpand
Lithium abundances and extra mixing processes in evolved stars of M 67
Aims. We present a spectroscopic analysis of a sample of evolved stars in M 67 (turn-off, subgiant and giant stars) in order to bring observational constraints to evolutionary models taking intoExpand
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Open clusters are important astrophysical laboratories to study the stellar formation and evolution and to verify the disk structure of the Milky Way. We present calculations of stellar atmosphericExpand
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Context. Lithium is a fundamental element for studying the mixing mechanisms acting in the stellar interiors, for understanding the chemical evolution of the Galaxy and the Big Bang nucleosynthesis.Expand
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Context. Classical chemical analyses may be affected by systematic errors that would cause observed abundance differences between dwarfs and giants. For some elements, however, the abundanceExpand
Spectroscopic study on the beryllium abundances of red giant stars
An extensive spectroscopic study was carried out for the beryllium abundances of 200 red giants (mostly of late G and early K type), which were determined from the near-UV Be II 3131.066 line basedExpand
Stellar abundances of beryllium and CUBES
Stellar abundances of beryllium are useful in different areas of astrophysics, including studies of the Galactic chemical evolution, of stellar evolution, and of the formation of globular clusters.Expand
Theoretical Predictions of Surface Light Element Abundances in Protostellar and Pre-Main Sequence Phase
Theoretical prediction of surface stellar abundances of light elements–lithium, beryllium, and boron–represents one of the most interesting open problems in astrophysics. As well known, severalExpand
High-precision stellar abundances of the elements: methods and applications
Efficient spectrographs at large telescopes have made it possible to obtain high-resolution spectra of stars with high signal-to-noise ratio and advances in model atmosphere analyses have enabledExpand
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