519 citations · 5.3k across the 153 of their papers we have counts for
13 papers · 2 filters
Extensive study of HD 25558, a long-period double-lined binary with two SPB components
Á. Sódor, P. De Cat, D. J. Wright +33
We carried out an extensive observational study of the Slowly Pulsating B (SPB) star, HD 25558. The ~2000 spectra obtained at different observatories, the ground-based and MOST sat…
Pulsating red giant stars in eccentric binary systems discovered from Kepler space-based photometry
P. G. Beck, K. Hambleton, J. Vos +30
The unparalleled photometric data obtained by NASA's Kepler space telescope led to an improved understanding of red giant stars and binary stars. Seismology allows us to constrain…
The problematically short superwind of OH/IR stars - Probing the outflow with the 69 μm spectral band of forsterite
B. L. de Vries, J. A. D. L. Blommaert, L. B. F. M. Waters +4
Spectra of OH/IR stars show prominent spectral bands of crystalline olivine (MgFeSiO). To learn more about the timescale of the outflows of OH/IR stars, w…
A search for pulsations in the HgMn star HD 45975 with CoRoT photometry and ground-based spectroscopy
T. Morel, M. Briquet, M. Auvergne +28
The existence of pulsations in HgMn stars is still being debated. To provide the first unambiguous observational detection of pulsations in this class of chemically peculiar object…
Studies of Variability in Proto-Planetary Nebulae: II. Light and Velocity Curve Analyses of Iras 22272+5435 and 22223+4327
Bruce J. Hrivnak, Wenxian Lu, Julius Sperauskas +3
We have carried out a detailed observational study of the light, color, and velocity variations of two bright, carbon-rich proto-planetary nebulae, IRAS 22223+4327 and 22272+5435.…
Long period sdB + MS binaries with Mercator
J. Vos, R. H. Østensen, H. Van Winckel
The predicted orbital period distribution of the subdwarf-B (sdB) population is bi-modal with a peak at short (< 10 days) and long (> 250 days) periods. Observationally, many short…
The orbits of subdwarf-B + main-sequence binaries. II. Three eccentric systems; BD+29 3070, BD +34 1543 and Feige 87
J. Vos, R. H. Østensen, P. Nemeth +3
The predicted orbital-period distribution of the subdwarf-B (sdB) population is bi-modal with a peak at short (< 10 days) and long (> 250 days) periods. Observationally, many short…
Modelling the asymmetric wind of the luminous blue variable binary MWC 314
A. Lobel, J. H. Groh, C. Martayan +12
We present a spectroscopic analysis of MWC 314, a luminous blue variable (LBV) candidate with an extended bipolar nebula. The detailed spectroscopic variability is investigated to…
Magellanic Cloud stars with TiO bands in emission: binary post-RGB/AGB stars or young stellar objects?
P. R. Wood, D. Kamath, H. Van Winckel
Fourteen stars from a sample of Magellanic Cloud objects selected to have a mid-infrared flux excess have been found to also show TiO bands in emission. The mid-infrared dust emiss…
Atmospheric Parameters of 169 F, G, K and M-type Stars in the Kepler Field
J. Molenda-Zakowicz, S. G. Sousa, A. Frasca +15
The asteroseismic and planetary studies, like all research related to stars, need precise and accurate stellar atmospheric parameters as input. We aim at deriving the effective tem…
Detection of a large sample of Gamma Dor stars from Kepler space photometry and high-resolution ground-based spectroscopy
A. Tkachenko, C. Aerts, A. Yakushechkin +10
The space-missions MOST, CoRoT, and Kepler deliver a huge amount of high-quality photometric data suitable to study numerous pulsating stars. Our ultimate goal is a detection and a…
Detailed abundance study of four s-process enriched post-AGB stars in the Large Magellanic Cloud
Els van Aarle, Hans Van Winckel, Kenneth De Smedt +2
Stellar photospheres of post-asymptotic giant branch stars bear witness to the internal chemical enrichment processes, integrated over their entire stellar evolution. Here we study…
Two new SB2 binaries with main sequence B-type pulsators in the Kepler field
P. I. Pápics, A. Tkachenko, C. Aerts +15
Context: OB stars are important in the chemistry and evolution of the Universe, but the sample of targets well understood from an asteroseismological point of view is still too lim…