Hostname: page-component-cd9895bd7-jkksz Total loading time: 0 Render date: 2024-12-26T04:07:28.589Z Has data issue: false hasContentIssue false
  • English
  • Français

Search for Lithium-Rich Stars Among G-K Giants with IR-excess

Published online by Cambridge University Press:  25 May 2016

G. Jasniewicz ,
M. Parthasarathy ,
P. de Laverny ,
F. Thévenin ,
N. Mauron  and
M. Chadid
G. Jasniewicz
Affiliation:
GRAAL, UPRESA 5024, Université de Montpellier II, CC 72, 34095 Montpellier Cedex 05, France
M. Parthasarathy
Affiliation:
Indian Institute of Astrophysics, Koramangala, Bangalore 560 034, India
P. de Laverny
Affiliation:
Observatoire de la Côte d'Azur, Dpt. Fresnel, UMR 6528, B.P. 4229, 06304 Nice Cedex 4, France
F. Thévenin
Affiliation:
Observatoire de la Côte d'Azur, Dpt. Cassini, UMR 6529, B.P. 4229, 06304 Nice Cedex 4, France
N. Mauron
Affiliation:
GRAAL, UPRESA 5024, Université de Montpellier II, CC 72, 34095 Montpellier Cedex 05, France
M. Chadid
Affiliation:
ESO, Casilla 19001, Santiago 19, Chile

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 report here new results about a search for Li-rich stars among 52 G-K giant stars which are known to have near IR excess. Eleven giants have been found to have log ∊(Li) ≥ 1.0. Five are new Li-rich stars. We suspect circumstellar shells around one of them, HD 219025. There is no clear correlation between Li-richness and rotation, or with binarity.

Type
4. Lithium Abundances
Information
Symposium - International Astronomical Union , Volume 198: The Light Elements and their Evolution , 2000 , pp. 325 - 330
Copyright
Copyright © Astronomical Society of the Pacific 2000 

References

Asplund, M., Gustafsson, B., Kiselman, D., & Eriksson, K. 1999, A&A, 318, 521 Google Scholar
Barrado y Navascues, D., de Castro, E., Fernandez-Figueroa, M.J., Cornide, M., & Garcia Lopez, R.J. 1998, A&A, 337, 739 Google Scholar
Bessell, M.S., Castelli, F., & PLez, B. 1998, A&A, 333, 231 Google Scholar
Brown, J.A., Sneden, C., Lambert, D.L., & Dutchover, E. Jr 1989, ApJS, 71, 293 Google Scholar
Charbonnel, C., & Balachandran, S. 2000, this volume Google Scholar
da Silva, L., de la Reza, R., & Barbuy, B. 1995, ApJ, 448, 410 Google Scholar
de la Reza, R., Drake, N.A., & da Silva, L., Torres, C.A.O., & Martin, E.L. 1997, ApJ, 482, 77 Google Scholar
de la Reza, R., Drake, N.A., & da Silva, L. et al. 1996, ApJ 456, 1150 Google Scholar
de Medeiros, J.R., & Udry, S. 1999, 346, 532 Google Scholar
de Medeiros, J.R., Melo, C.H.F., & Mayor, M. 1996, 309, 465 Google Scholar
Fekel, F.C., & Balachandran, S. 1993, ApJ, 403, 708 CrossRefGoogle Scholar
Fekel, F.C., & Watson, L.C. 1998, AJ, 116, 2466 CrossRefGoogle Scholar
Jasniewicz, G., Parthasarathy, M., de Laverny, P., Thévenin, F. 1999, A&A, 342, 831 Google Scholar
Judge, P.G., Jordan, C., & Rowan-Robinson, M. 1987, MNRAS, 224, 93 Google Scholar
Jura, M., 1999, ApJ, 515, 706 Google Scholar
Lèbre, A., de Laverny, P., de Medeiros, J.R., Charbonnel, C., & da Silva, L. 1999, A&A, 345, 936 Google Scholar
Oudmaijer, R.D., van der Veen, W.E.C.J., Waters, L.B.F.M., Trams, N.R., Waelkens, C., & Engelsman, E. 1992, A&AS, 96, 625 Google Scholar
Plets, H., Waelkens, C., Oudmaijer, R.D., & Waters, L.B.F.M. 1997, A&A, 323, 513 Google Scholar
Sackmann, I.J., & Boothroyd, A.I. 1999, ApJ, 510, 217 Google Scholar
Siess, L., & Livio, M. MNRAS, 308, 1133 Google Scholar
Stencel, R.E., Backman, D.E. 1991, ApJS, 75, 905 Google Scholar
Zuckerman, B., Sungsoo, S.K., & Liu, T. 1995, ApJ, 446, 79 CrossRefGoogle Scholar