Solar-Like Oscillations in beta Hydri: Evidence for Short-Lived High-Amplitude Oscillations

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dc.creatorBedding, T. R.
dc.creatorKjeldsen, H.
dc.creatorBaldry, I. K.
dc.creatorBouchy, F.
dc.creatorButler, R. P.
dc.creatorCarrier, F.
dc.creatorKienzle, F.
dc.creatorMarcy, G. W.
dc.creatorO'Toole, S. J.
dc.creatorTinney, C. G.
dc.date2002-02-26
dc.date.accessioned2026-07-07T02:02:55Z
dc.date.available2026-07-07T02:02:55Z
dc.descriptionVelocity measurements of the G2 subgiant beta Hyi with both UCLES and CORALIE show a clear excess of power centred at 1.0 mHz. In the UCLES data we find evidence for a short-lived, high-amplitude oscillation event. If confirmed as a feature of subgiants, such `starquakes' would make it harder to measure accurate mode frequencies and perform asteroseismology.
dc.description4 pages, latex, eps figures, To appear in Proc. IAU Colloq. 185: "Radial and Nonradial Pulsations as Probes of Stellar Physics", edited by C. Aerts, T.R. Bedding and J. Christensen-Dalsgaard, ASP Conf. Series, Vol. 259, p. 464
dc.identifierhttps://arxiv.org/abs/astro-ph/0202471
dc.identifierhttp://arxiv.org/abs/astro-ph/0202471
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/4210
dc.subjectAstrophysics
dc.titleSolar-Like Oscillations in beta Hydri: Evidence for Short-Lived High-Amplitude Oscillations
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