Bibcode
Belmonte, J. A.; Jones, A. R.; Palle, P. L.; Roca Cortes, T.
Bibliographical reference
(IAU, European Regional Astronomy Meeting on New Windows to the Universe, 11th, La Laguna, Spain, July 3-8, 1989) Astrophysics and Space Science (ISSN 0004-640X), vol. 169, no. 1-2, July 1990, p. 77-84.
Advertised on:
7
1990
Citations
7
Refereed citations
5
Description
Simultaneous spectrometric and photometric observations have been
performed on the red giant star Arcturus, in a search for radial
velocity or luminosity variations related to global oscillations of the
stellar structure. From a preliminary analysis of the spectrometric
data, several frequencies have been discovered in the range from 1 to 50
micro-Hz, the highest amplitude being 60 m/s at 4.3 micro-Hz.