activity
19932026
most citedGravity modes as a way to distinguish between hydrogen- and helium-burning red giant stars

612 citations · 25.5k across the 406 of their papers we have counts for

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Showing 2004Show all

7 papers · 1 filter

astro-ph2004★ 47 cited

Science Programs for a 2 m-class Telescope at Dome C, Antarctica: PILOT, the Pathfinder for an International Large Optical Telescope

M. G. Burton, J. Lawrence, M. C. B. Ashley +24

The cold, dry and stable air above the summits of the Antarctic plateau provides the best ground-based observing conditions from optical to sub-mm wavelengths to be found on the Ea…

astro-ph2004★ 21 cited

A first-overtone RR Lyrae star with cyclic period changes

A. Derekas, L. L. Kiss, A. Udalski +2

A detailed light curve analysis is presented for a first-overtone RR Lyrae star, MACHO* J050918.712-695015.31, based on MACHO and OGLE-III observations. As a foreground object of t…

astro-ph2004★ 137 cited

Oscillation frequencies and mode lifetimes in alpha Centauri A

Timothy R. Bedding, Hans Kjeldsen, R. Paul Butler +5

We analyse our recently-published velocity measurements of alpha Cen A (Butler et al. 2004). After adjusting the weights on a night-by-night basis in order to optimize the window f…

astro-ph2004★ 68 cited

Altair: The Brightest Delta Scuti Star

D. L. Buzasi, H. Bruntt, T. R. Bedding +7

We present an analysis of observations of the bright star Altair (alpha Aql) obtained using the star camera on the Wide-Field Infrared Explorer (WIRE) satellite. Although Altair li…

astro-ph2004★ 37 cited

Period and chemical evolution of SC stars

Albert A. Zijlstra, T. R. Bedding, Andrew J. Markwick +8

The SC and CS stars are thermal-pulsing AGB stars with C/O ratio close to unity. Within this small group, the Mira variable BH Cru recently evolved from spectral type SC (showing Z…

astro-ph2004★ 63 cited

Multi-wavelength Diameters of Nearby Miras and Semiregulars

M. J. Ireland, P. G. Tuthill, T. R. Bedding +2

We have used optical interferometry to obtain multi-wavelength visibility curves for eight red giants over the wavelength range 650--1000 nm. The observations consist of wavelength…

astro-ph2004★ 37 cited

Simulating stochastically excited oscillations. The mode lifetime of xi Hya

D. Stello, H. Kjeldsen, T. R. Bedding +5

The discovery of solar-like oscillations in the giant star xy Hya (G7III) was reported by Frandsen et al. (2002). Their frequency analysis was very limited due to alias problems in…