Hostname: page-component-77c89778f8-swr86 Total loading time: 0 Render date: 2024-07-17T13:57:42.539Z Has data issue: false hasContentIssue false
  • English
  • Français

Accurate Parallaxes and Stellar Ages Determinations

Published online by Cambridge University Press:  07 August 2017

Y. Lebreton ,
E. Michel ,
M.J. Goupil ,
A. Baglin  and
J. Fernandes
Y. Lebreton
Affiliation:
DASGAL, URA CNRS 335, Observatoire de Paris, Section de Meudon 92195 MEUDON Cedex, France
E. Michel
Affiliation:
DASGAL, URA CNRS 335, Observatoire de Paris, Section de Meudon 92195 MEUDON Cedex, France
M.J. Goupil
Affiliation:
DASGAL, URA CNRS 335, Observatoire de Paris, Section de Meudon 92195 MEUDON Cedex, France
A. Baglin
Affiliation:
DASGAL, URA CNRS 335, Observatoire de Paris, Section de Meudon 92195 MEUDON Cedex, France
J. Fernandes
Affiliation:
DASGAL, URA CNRS 335, Observatoire de Paris, Section de Meudon 92195 MEUDON Cedex, France

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.

Uncertainties on stellar ages due to the physical description of the stellar material entering the models and to measurements of global parameters and chemical composition are estimated in the case of A/F stars.

With combined efforts on atmosphere modeling (to improve global parameters), on asteroseismology (to improve the physical description of the stellar interior) and on distance determination at the level of the sub-milliarcsecond (to improve luminosity), an accuracy on age determination of about 10% is foreseeable.

Type
2. Current and Future Needs for Very Accurate Astrometry
Information
Symposium - International Astronomical Union , Volume 166: Astronomical and Astrophysical Objectives of Sub-Milliarcsecond Optical Astrometry , 1995 , pp. 135 - 142
Copyright
Copyright © Kluwer 1995 

References

Brown, T.M., Christensen-Dalsgaard, J., Weibel-Mihalas, B., Gilliland, R. (1994) ApJ 427, 1013 Google Scholar
Caughlan, G.R., and Fowler, W.A. (1988) Atomic Data Nuc. Data Tables 40, 284 Google Scholar
Dziembovsky, W.A., Pamyatnykh, A.A. (1991) A&A 248, L11 Google Scholar
Edvardsson, B., Andersen, J., Gustafsson, B., Lambert, D.L., Nissen, P.E., Tomkin, J. (1993) A&A 275, 101 Google Scholar
Fernandes, J., Lebreton, Y., Baglin, A. (1994) submitted to A&A Google Scholar
Goupil, M.J., Michel, E., Lebreton, Y., Baglin, A. (1993) A&A 268, 546 Google Scholar
Grevesse, N. (1991) in Evolution of stars: The Photospheric Abundance Connection, eds. Michaud, G., Tutukov, A., p. 63 Google Scholar
Huebner, WF., Mertz, A.L., Magee, N. H. Jr., Argo, M. F (1977), Astrophysical Opacity Library, Los Alamos Scientific Lab., Report LA-6760-M Google Scholar
Iglesias, C.A., Rogers, F.J., Wilson, B.G. (1992) ApJ 397, 717 Google Scholar
Michel, E., Belmonte, J.A., Alvarez, M., Jiang, S.Y., Chevreton, M., Auvergne, M., Goupil, M.J., Baglin, A., Mangeney, A., Roca Cortes, T., Liu, Y. Y., Fu, J.N., Dolez, N. (1992) A&A 255, 139 Google Scholar
Morel, P. (1993), in Inside the stars, IAU coll. 137; eds. Weiss, W.W. and Baglin, A., p. 44 Google Scholar
Morel, P. (1994), submitted to A&A Google Scholar
Napiwotski, R., Rieschick, A., Blöcker, T., Schönberner, D., Wenske, V. (1993), in Inside the stars, IAU colloquium 137, eds. Weiss, W.W. and Baglin, A., p. 461 Google Scholar
Neuforge, C., Fernandes, J. (1994), A&A in press Google Scholar
Parker, P.D. MacD., Rolfs, C.E. (1991), in Solar Interior and Atmosphere, eds. Cox, A.N., Livingstone, W.C., Matthews, M.S., Space Sci. Ser., p. 51 Google Scholar
Schaller, G., Shaerer, D., Meynet, G., Maeder, A. (1992) A&AS 96, 269 Google Scholar