A search for solar-like oscillations in alpha Cen A

Details A search for solar-like oscillations in alpha Cen A A search for solar-like oscillations in alpha Cen A

1997-10-31

arxiv.org/abs/astro-ph/9710359v2

Astronomy and Astrophysics

Astrophysics

6 pages, LaTeX with PS figures; Invited talk, to appear in Proc. IAU 185 on "New Eyes to See Inside the Sun and Stars" Kyoto,

Scientific paper

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 alpha 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.

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