Bibcode
DOI
Belmonte, Juan A.; Jones, Andrew R.; Palle, Pere L.; Roca-Cortés, T.
Bibliographical reference
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 358, Aug. 1, 1990, p. 595-609. Research supported by DGICYT.
Advertised on:
8
1990
Journal
Citations
37
Refereed citations
27
Description
A two-week time series of precise radial velocity measurements of Alpha
Bootis (Arcturus) covering 7-8 hr per night is reported. The radial
barycentric velocity of the star is found to be -5021 + or - 5 m/s. When
data from the whole run are jointly analyzed, several equispaced peaks
in the frequency appear in the range of a few microhertz, the highest
amplitude being some 60 m/s at 4.3 microhertz. The most probable
frequency spacing seems to be 50 microhertz, while the frequency cutoff
is around 80 microhertz.