Hostname: page-component-586b7cd67f-2brh9 Total loading time: 0 Render date: 2024-11-26T06:43:47.576Z Has data issue: false hasContentIssue false
  • English
  • Français

A Search for Solar-Like Oscillations In α Cen A

Published online by Cambridge University Press:  08 February 2017

T.R. Bedding ,
H. Kjeldsen ,
S. Frandsen  and
T.H. Dall
T.R. Bedding
Affiliation:
School of Physics, University of Sydney 2006, Australia
H. Kjeldsen
Affiliation:
Teoretisk Astrofysik Center, Danmarks Grundforskningsfond, Aarhus University, DK-8000 Aarhus C, Denmark
S. Frandsen
Affiliation:
Institut for Fysik og Astronomi, Aarhus Universitet, DK-8000, Aarhus C, Denmark
T.H. Dall
Affiliation:
Institut for Fysik og Astronomi, Aarhus Universitet, DK-8000, Aarhus C, Denmark

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 have been using a new method to search for solar-like oscillations that involves measuring temperature changes via their effect on the equivalent widths of the Balmer hydrogen lines. We observed α Cen A over six nights in 1995 with the 3.9-metre Anglo-Australian Telescope and the European Southern Observatory's 3.6-metre telescope in Chile. Oscillations were not detected, with an upper limit only slightly higher than the expected signal.

Type
V. Asteroseismology I
Information
Symposium - International Astronomical Union , Volume 185: New Eyes to See Inside the Sun and Stars , 1998 , pp. 285 - 290
Copyright
Copyright © Kluwer 1998 

References

Bedding, T. R., Kjeldsen, H., 1995. In: Stobie, R. S., Whitelock, P. A. (eds.), IAU Colloquium 155: Astrophysical Applications of Stellar Pulsation, A.S.P. Conf. Ser., Vol. 83, Utah: Brigham Young, p. 109 Google Scholar
Bedding, T. R., Kjeldsen, H., 1998. In: Donahue, R. A., Bookbinder, J. A. (eds.), Proc. Tenth Cambridge Workshop on Cool Stars, Stellar Systems and the Sun, A.S.P. Conf. Ser., San Francisco: ASP (in press) Google Scholar
Bedding, T. R., Kjeldsen, H., Reetz, J., Barbuy, B., 1996, MNRAS 280, 1155 CrossRefGoogle Scholar
Bedding, T. R., Kjeldsen, H., Christensen-Dalsgaard, J., 1998. In: Donahue, R. A., Bookbinder, J. A. (eds.), Poster Proc. Tenth Cambridge Workshop on Cool Stars, Stellar Systems and the Sun, San Francisco: ASP (in press) Google Scholar
Brown, T. M., Gilliland, R. L., 1990, ApJ 350, 839 Google Scholar
Brown, T. M., Gilliland, R. L., 1994, ARA&A 33, 37 Google Scholar
Brown, T. M., Christensen-Dalsgaard, J., Weibel-Mihalas, B., Gilliland, R. L., 1994, ApJ 427, 1013 Google Scholar
Brown, T. M., Kennelly, E. J., Korzennik, S. G., et al, 1997, ApJ 475, 322 Google Scholar
Christensen-Dalsgaard, J., Bedding, T. R., Houdek, G., et al., 1995a. In: Stobie, R. S., Whitelock, P. A. (eds.), IAU Colloquium 155: Astrophysical Applications of Stellar Pulsation, A.S.P. Conf. Ser., Vol. 83, Utah: Brigham Young, p. 447 Google Scholar
Christensen-Dalsgaard, J., Bedding, T. R., Kjeldsen, H., 1995b, ApJ 443, L29 CrossRefGoogle Scholar
Dravins, D., Lindegren, L., Mezey, E., Young, A. T., 1997, PASP 109, 725 CrossRefGoogle Scholar
Edmonds, P. D., Cram, L. E., 1995, MNRAS 276, 1295 Google Scholar
Edmonds, P. D., Cram, L. E., Demarque, P., Guenther, D. B., Pinsonneault, M., 1992, ApJ 394, 313 Google Scholar
Frandsen, S., 1997. In: Provost, J., Schmider, F.-X. (eds.), Proc. IAU Symp. 181, Sounding Solar and Stellar Interiors, Dordrecht: Kluwer (in press) Google Scholar
Gelly, G., Grec, G., Fossat, E., 1986, A&A 164, 383 Google Scholar
Guenther, D. B., Demarque, P., 1996, ApJ 456, 798 Google Scholar
Jakeman, E., Pike, E. R., Pusey, P. N., 1976, Nat 263, 215 CrossRefGoogle Scholar
Kjeldsen, H., Bedding, T. R., 1995, A&A 293, 87 Google Scholar
Kjeldsen, H., Bedding, T. R., Viskum, M., Frandsen, S., 1995, AJ 109, 1313 Google Scholar
Kjeldsen, H., Frandsen, S., Bedding, T. R., Dall, T. H., Christensen-Dalsgaard, J., 1996, SONGNews 1 (http://www.noao.edu/noao/song)Google Scholar
Pottasch, E. M., Butcher, H. R., van Hoesel, F. H. J., 1992, A&A 264, 138 Google Scholar