612 citations · 25.5k across the 406 of their papers we have counts for
11 papers · 1 filter
Defining the instability strip of pulsating post-AGB binary stars from ASAS and NSVS photometry
L. L. Kiss, A. Derekas, Gy. M. Szabo +2
We analyse public domain time-series photometric observations of 30 known and candidate binary post-AGB stars for measuring pulsation and orbital periods. We derive periodicities f…
Eclipsing binaries in the LMC: a wealth of data for astrophysical tests
A. Derekas, L. L. Kiss, T. R. Bedding
We have analysed publicly available MACHO observations of 6833 variable stars in the Large Magellanic Cloud, classified as eclipsing binaries. After finding that a significant frac…
Asteroseismology with the WIRE satellite. I. Combining Ground- and Space-based Photometry of the Delta Scuti Star Epsilon Cephei
H. Bruntt, J. C. Suarez, T. R. Bedding +10
We have analysed ground-based multi-colour Stromgren photometry and single-filter photometry from the star tracker on the WIRE satellite of the delta scuti star Epsilon Cephei. The…
Observations of solar-like oscillations
Timothy R. Bedding, Hans Kjeldsen
There has been tremendous progress in observing oscillations in solar-type stars. In a few short years we have moved from ambiguous detections to firm measurements. We review the r…
Multi-site campaign on the open cluster M67. I. Observations and photometric reductions
D. Stello, T. Arentoft, T. R. Bedding +18
We report on an ambitious multi-site campaign aimed at detecting stellar variability, particularly solar-like oscillations, in the red giant stars in the open cluster M67 (NGC 2682…
Ellipsoidal Variability and Long Secondary Periods in MACHO Red Giant Stars
A. Derekas, L. L. Kiss, T. R. Bedding +3
We present a period-luminosity-amplitude analysis of 5899 red giant and binary stars in the Large Magellanic Cloud, using publicly available observations of the MACHO project. For…
Bayesian Inference from Observations of Solar-Like Oscillations
Brendon J. Brewer, Timothy R. Bedding, Hans Kjeldsen +1
Stellar oscillations can provide a wealth of information about a star, which can be extracted from observed time series of the star's brightness or radial velocity. In this paper w…
Variability in red supergiant stars: pulsations, long secondary periods and convection noise
L. L. Kiss, Gy. M. Szabo, T. R. Bedding
We study the brightness variations of galactic red supergiant stars using long-term visual light curves collected by the American Association of Variable Star Observers (AAVSO) ove…
Solar-like oscillations in the metal-poor subgiant nu Indi: constraining the mass and age using asteroseismology
Timothy R. Bedding, R. Paul Butler, Fabien Carrier +9
Asteroseismology is a powerful method for determining fundamental properties of stars. We report the first application to a metal-poor object, namely the subgiant star nu Ind. We m…
Bisectors of the cross-correlation function applied to stellar spectra. Discriminating stellar activity, oscillations and planets
T. H. Dall, N. C. Santos, T. Arentoft +2
Aims: We investigate whether bisectors derived from cross-correlation functions (CCF) of single-exposure spectra can be used to provide information on stellar atmospheres, and whet…
First Attempt at Spectroscopic Detection of Gravity Modes in a Long-Period Pulsating Subdwarf B Star -- PG 1627+017
B. -Q. For, E. M. Green, D. O'Donoghue +7
In the first spectroscopic campaign for a PG 1716 variable (or long-period pulsating subdwarf B star), we succeeded in detecting velocity variations due to g-mode pulsations at a l…