612 citations · 25.5k across the 406 of their papers we have counts for
11 papers · 2 filters
Oscillation mode lifetimes in ksi Hydrae: Will strong mode damping limit asteroseismology of red giant stars?
D. Stello, H. Kjeldsen, T. R. Bedding +1
We introduce a new method to measure frequency separations and mode lifetimes of stochastically excited and damped oscillations, so-called solar-like oscillations. Our method shows…
Do red giants have short mode lifetimes?
D. Stello, H. Kjeldsen, T. R. Bedding +1
We show evidence that the red giant star ksi Hya has an oscillation mode lifetime, tau, of about 2 days significantly shorter than predicted by theory (tau = 17 days, Houdek & Goug…
Observing solar-like oscillations: recent results
Timothy R. Bedding, Hans Kjeldsen
We review recent progress in observations of ground-based oscillations. Excellent observations now exist for a few stars (alpha Cen A and B, mu Ara), while there is some controvers…
Binarity and multiperiodicity in high-amplitude delta Scuti stars
A. Derekas, L. L. Kiss, B. Csak +6
We present our first results for a sample of southern high-amplitude delta Scuti stars (HADS), based on a spectrophotometric survey started in 2003. For CY Aqr and AD CMi, we found…
A comprehensive survey of variable stars in the globular cluster NGC 362
P. Székely, L. L. Kiss, B. Csák +3
We present the first results of our variability survey for the globular cluster NGC 362. We found numerous variable stars in the field including 23 RR Lyr stars, 4 eclipsing binari…
Solar-like oscillations in alpha Centauri B
Hans Kjeldsen, Timothy R. Bedding, R. Paul Butler +6
We have made velocity observations of the star alpha Cen B from two sites, allowing us to identify 37 oscillation modes with l=0-3. Fitting to these modes gives the large and small…
The light curve of the semiregular variable L2 Puppis: II. Evidence for solar-like excitation of the oscillations
T. R. Bedding, L. L. Kiss, H. Kjeldsen +4
We analyse visual observations of the pulsations of the red giant variable L2 Pup. The data cover 77 years between 1927 and 2005, thus providing an extensive empirical base for cha…
Evidence for Granulation and Oscillations in Procyon from Photometry with the WIRE satellite
H. Bruntt, H. Kjeldsen, D. L. Buzasi +1
We report evidence for the granulation signal in the star Procyon A, based on two photometric time series from the star tracker on the WIRE satellite. The power spectra show eviden…
Red variables in the OGLE-II data base -- III. Constraints on the three-dimensional structures of the LMC and SMC
P. Lah, L. L. Kiss, T. R. Bedding
We present an analysis of the 3-D structure of the Magellanic Clouds, using period-luminosity (P-L) relations of pulsating red giants in the OGLE-II sample. By interpreting deviati…
The non-detection of oscillations in Procyon by MOST: is it really a surprise?
T. R. Bedding, H. Kjeldsen, F. Bouchy +8
We argue that the non-detection of oscillations in Procyon by the MOST satellite reported by Matthews et al. (2004) is fully consistent with published ground-based velocity observa…
Photometric biases due to stellar blending: implications for measuring distances, constraining binarity and detecting exoplanetary transits
L. L. Kiss, T. R. Bedding
We investigate blending, binarity and photometric biases in crowded-field CCD imaging. For this, we consider random blend losses, which correspond to the total number of stars left…