The age-mass relation for chromospherically active binaries - III. Lithium depletion in giant components
We present a study of the lithium abundances of a sample of evolved components of Chromospherically Active Binary Systems. We show that a significant part of them have lithium excesses, independently of their mass and evolutionary stage. Therefore, it can be concluded that Li abundance does not depe...
| Authors: | , , , , |
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| Format: | article |
| Publication Date: | 1998 |
| Country: | España |
| Institution: | Universidad Complutense de Madrid (UCM) |
| Repository: | Docta Complutense |
| Language: | English |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/59611 |
| Online Access: | https://hdl.handle.net/20.500.14352/59611 |
| Access Level: | Open access |
| Keyword: | 52 RS-canum-venaticorum Hyades cluster CVN binaries F-dwarfs Stars Abundances Search Scale Astrofísica Astronomía (Física) |
| Summary: | We present a study of the lithium abundances of a sample of evolved components of Chromospherically Active Binary Systems. We show that a significant part of them have lithium excesses, independently of their mass and evolutionary stage. Therefore, it can be concluded that Li abundance does not depend on age for giant components of CABS. These overabundances appear to be closely related to the stellar rotation, and we interpret them as a consequence of the transfer of angular momentum from the orbit to the rotation as the stars evolve: in and off the Main Sequence, in a similar way as it happens in the dwarf components of the same systems and in the Tidally Locked Binaries belonging to the Hyades and M67. |
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