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The radius and other fundamental parameters of the F9 V star beta Virginis
J. R. North, J. Davis, J. G. Robertson +10
We have used the Sydney University Stellar Interferometer (SUSI) to measure the angular diameter of the F9 V star beta Virginis. After correcting for limb darkening and combining w…
Binarity and multiperiodicity in high-amplitude delta Scuti stars
A. Derekas, L. L. Kiss, T. R. Bedding +10
We have carried out a photometric and spectroscopic survey of bright high-amplitude delta Scuti (HADS) stars. The aim was to detect binarity and multiperiodicity (or both) in order…
Dynamics of a double pendulum with distributed mass
M. Z. Rafat, M. S. Wheatland, T. R. Bedding
We investigate a variation of the simple double pendulum in which the two point masses are replaced by square plates. The double square pendulum exhibits richer behavior than the s…
Solar-like oscillations in the G8 V star tau Ceti
T. C. Teixeira, H. Kjeldsen, T. R. Bedding +8
We used HARPS to measure oscillations in the low-mass star tau Cet. Although the data were compromised by instrumental noise, we have been able to extract the main features of the…
The Keck Aperture Masking Experiment: spectro-interferometry of 3 Mira Variables from 1.1 to 3.8 microns
H. C. Woodruff, M. J. Ireland, P. G. Tuthill +6
We present results from a spectro-interferometric study of the Miras o Cet, R Leo and W Hya obtained with the Keck Aperture Masking Experiment from 1998 Sep to 2002 Jul. The spectr…
Excitation and damping of p-mode oscillations of alpha Cen B
W. J. Chaplin, G. Houdek, Y. Elsworth +3
This paper presents an analysis of observational data on the p-mode spectrum of the star alpha Cen B and a comparison with theoretical computations of the stochastic excitation and…
A multi-site campaign to measure solar-like oscillations in Procyon. I. Observations, Data Reduction and Slow Variations
Torben Arentoft, Hans Kjeldsen, Timothy R. Bedding +45
We have carried out a multi-site campaign to measure oscillations in the F5 star Procyon A. We obtained high-precision velocity observations over more than three weeks with eleven…
Measurements of Stellar Properties through Asteroseismology: A Tool for Planet Transit Studies
Hans Kjeldsen, Timothy R. Bedding, Joergen Christensen-Dalsgaard
Oscillations occur in stars of most masses and essentially all stages of evolution. Asteroseismology is the study of the frequencies and other properties of stellar oscillations, f…
The amplitude of solar oscillations using stellar techniques
Hans Kjeldsen, Timothy R. Bedding, Torben Arentoft +6
The amplitudes of solar-like oscillations depend on the excitation and damping, both of which are controlled by convection. Comparing observations with theory should therefore impr…
The fundamental parameters of the roAp star alpha Circini
H. Bruntt, J. R. North, M. Cunha +12
We have used the Sydney University Stellar Interferometer (SUSI) to measure the angular diameter of alpha Cir. This is the first detailed interferometric study of a rapidly oscilla…
Observing solar-like oscillations
Timothy R. Bedding, Hans Kjeldsen
The past few years have seen great progress in observing oscillations in solar-type stars, lying on or just above the main sequence. We review the most recent results, most of whic…