Hostname: page-component-7bb8b95d7b-dvmhs Total loading time: 0 Render date: 2024-09-13T02:30:45.267Z Has data issue: false hasContentIssue false
  • English
  • Français

Rotation, Convection, Activity and Lithium in Single G and K giants

Published online by Cambridge University Press:  26 May 2016

Renada K. Konstantinova–Antova
Renada K. Konstantinova–Antova*
Affiliation:
Institute of Astronomy, Bulgarian Academy of Sciences, 72 Tsarigradsko shosse blvd., BG-1784 Sofia, Bulgaria, e–mail: antovi@astro.bas.bg

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We studied the activity and evolutionary stage of 14 low and intermediate mass single giants that should meet the conditions for dynamo action and Li–enrichment. Only small part of them exhibit either moderate to fast rotation and evidences for magnetic activity and/or high Li abundance. There are also intermediate–mass giants with fast rotation, but no evidences for magnetic activity was found in them and their Li–content is low one. on the other hand, no fast rotation and activity were observed in some of the Li–rich giants. There is a large difference in the activity properties and Li content in stars with similar masses and evolutionary stage.

Type
Session 2 Rotation in Relation with Abundances and Magnetic Fields
Information
Symposium - International Astronomical Union , Volume 215: Stellar Rotation , 2004 , pp. 287 - 288
Copyright
Copyright © Astronomical Society of the Pacific 2004 

References

Charbonnel, C., Balachandran, S.C. 2000, A&A 359, 563 Google Scholar
De Medeiros, J. R., Mayor, M. 1999, A&AS 139, 433 Google Scholar
Fekel, F. C., Balachandran, S. 1993, ApJ 403, 708 Google Scholar
Konstantinova-Antova, R. K. 2001, Google Scholar
Pasquini, L., De Medeiros, J.R., Girardi, L. 2000, A&A 361, 1011 Google Scholar
Schaller, G., Schaerer, D., Meynet, G., Maeder, A. 1992, A&AS 96, 269 Google Scholar