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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

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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

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