Evidence for Solar-like Oscillations in Arcturus (Alpha Boo)

Simple item page
dc.creatorRetter, Alon
dc.creatorBedding, Timothy R.
dc.creatorBuzasi, Derek
dc.creatorKjeldsen, Hans
dc.date2002-08-28
dc.date.accessioned2026-07-07T02:04:50Z
dc.date.available2026-07-07T02:04:50Z
dc.descriptionObservations of the red giant Arcturus (Alpha Boo) obtained with the star tracker on the Wide Field Infrared Explorer (WIRE) satellite during a baseline of 19 successive days in 2000 July-August are analysed. The power spectrum has a significant excess of power at low-frequencies. The highest peak is at about 4.1 micro-Hz, which is in agreement with the ground-based radial velocity and photometry study of Belmonte et al. (1990a; 1990b). The variability of Arcturus can be explained by sound waves, but it is not clear whether these are coherent p-mode oscillations.
dc.description4 pages, 1 Latex file, 3 .eps figures, uses 2 Kluwer .sty files (klucite.sty, klups.sty). To appear in `Asteroseismology Across the HR Diagram', Kluwer (Astrophysics and Space Science Series, eds. Thompson M.J., Cunha M.S., Monteiro M.J.P.F.G., 2003
dc.identifierhttps://arxiv.org/abs/astro-ph/0208518
dc.identifierhttp://arxiv.org/abs/astro-ph/0208518
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/4914
dc.subjectAstrophysics
dc.titleEvidence for Solar-like Oscillations in Arcturus (Alpha Boo)
dc.typetext

Files

Collections

arXiv