Abstract
We have determined the atmospheric abundances of Y, Ba, La, Ce, Pr, Nd, and Eu for a sample of 171 giants selected as clump giants with metallicities [Fe/H] between −0.7 and 0.3 dex, based on photometric criteria. In our analysis, we assumed local thermodynamic equilibrium and fit the parameters of model atmospheres to high-resolution (R = 42 000) echelle spectra with high signal-to-noise ratios. The Ba and Eu abundances were derived using synthetic spectra, including hyperfine structure. We find no significant difference in the abundances of s-or r-process neutron-capture elements between clump giants and ascending-branch giants selected by us earlier. We also analyze the relation between the abundances of neutron-capture elements and [Fe/H].
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
S. E. Woosley, J. R. Wilson, G. J. Mathews, et al., Astrophys. J. 433, 229 (1994).
M. Busso, R. Gallino, and G. J. Wasserburg, Ann. Rev. Astron. Astrophys. 37, 239 (1999).
A. A. Boyarchuk, L. I. Antipova, M. E. Boyarchuk, and I. A. Savanov, Astron. Zh. 73, 862 (1996) [Astron. Rep. 40, 783 (1996)].
A. A. Boyarchuk, L. I. Antipova, M. E. Boyarchuk, and I. A. Savanov, Astron. Zh. 78, 349 (2001) [Astron. Rep. 45, 301 (2001)].
V. V. Kvtyukh, T. V. Mishenina, T. I. Gorbaneva, et al., Astron. Zh. 73, 862 (2006) [Astron. Rep. 50, 134 (2006)].
T. V. Mishenina, O. Bienaymé, T. I. Gorbaneva, et al., Astron. Astrophys. 456, 1109 (2006).
T. V. Mishenina, C. Soubiran, V. V. Kovtyukh, et al., Astron. Astrophys. 418, 551 (2004).
C. Soubiran and P. Girard, Astron. Astrophys. 438, 139 (2005).
O. Bienaymé, C. Soubiran, T. V. Mishenina, et al., Astron. Astrophys. 446, 993 (2006).
The Hipparcos and Tycho Catalogues, ESA-SP 1200 (ESA Publications Division, Netherlands, 1997).
A. Baranne, D. Queloz, M. Mayor, et al., Astron. Astrophys., Suppl. 119, 373 (1998).
D. Katz, C. Soubiran, R. Cayrel, et al., Astron. Astrophys. 338, 151 (1998).
G. A. Galazutdinov, Prerpint No. 92, SAO RAN (Special Astrophysical Observatory, Russian Academy of Sciences, Nizhnyĭ Arkhyz, 1992).
R. Cayrel, M. Faurobert-Scholl, N. Feautrier, et al., Astron. Astrophys. 312, 549 (1996).
R. L. Kurucz, ATLAS9 Stellar Atmosphere Programs and 2 km/s Grid, CD-ROM No. 13 (1993).
V. V. Kovtyukh and S. M. Andrievsky, Astron. Astrophys. 351, 597 (1999).
L. Mashonkina and T. Gehren, Astron. Astrophys. 364, 249 (2000).
V. V Tsymbal, in Model of Atmospheres and Spectrum Synthesis, Ed. by Astron. Soc. Pac. Conf. Ser. 108, 198 (1996).
B. Edvarsson, J. Andersen, B. Gustafsson, et al., Astron. Astrophys. 275, 101 (1993).
C. Travaglio, D. Galli, R. Gallino, et al., Astrophys. J. 521, 691 (1999).
Author information
Authors and Affiliations
Additional information
Original Russian Text © T.V. Mishenina, T.I. Gorbaneva, O. Bienaymé, C. Soubiran, V.V. Kovtyukh, L.F. Orlova, 2007, published in Astronomicheskiĭ Zhurnal, 2007, Vol. 34, No. 5, pp. 429–441.
Rights and permissions
About this article
Cite this article
Mishenina, T.V., Gorbaneva, T.I., Bienaymé, O. et al. Abundances of neutron-capture elements in atmospheres of cool giants. Astron. Rep. 51, 382–393 (2007). https://doi.org/10.1134/S1063772907050046
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1134/S1063772907050046