157 citations · 856 across the 14 of their papers we have counts for
14 papers
Signatures of internal rotation discovered in the Kepler data of five slowly pulsating B stars
P. I. Pápics, A. Tkachenko, T. Van Reeth +9
Massive stars are important building blocks of the Universe, and their stellar structure and evolution models are fundamental cornerstones of various fields in modern astrophysics.…
Detailed homogeneous abundance studies of 14 Galactic s-process enriched post-AGB stars: In search of lead (Pb)
Kenneth De Smedt, Hans Van Winckel, Devika Kamath +4
This paper is part of a larger project in which we systematically study the chemical abundances of Galactic and extragalactic post-asymptotic giant branch (post-AGB) stars. Lead (P…
Internal rotation of the red-giant star KIC 4448777 by means of asteroseismic inversion
M . P. Di Mauro, R. Ventura, D. Cardini +13
In this paper we study the dynamics of the stellar interior of the early red-giant star KIC 4448777 by asteroseismic inversion of 14 splittings of the dipole mixed modes obtained f…
KIC 10080943: An eccentric binary system containing two pressure- and gravity-mode hybrid pulsators
V. S. Schmid, A. Tkachenko, C. Aerts +14
Gamma Doradus and delta Scuti pulsators cover the transition region between low mass and massive main-sequence stars, and as such, are critical for testing stellar models. When the…
Post-AGB stars in the Magellanic Clouds and neutron-capture processes in AGB stars
M. Lugaro, S. W. Campbell, H. Van Winckel +3
We explore modifications to the current scenario for the slow neutron capture process in asymptotic giant branch (AGB) stars to account for the Pb deficiency observed in post-AGB s…
Chemical abundance study of two strongly s-process enriched post-AGB stars in the LMC: J051213.81-693537.1 and J051848.86-700246.9
K. De Smedt, H. Van Winckel, D. Kamath +1
Context: This paper is part of a larger project in which we study the chemical abundances of extra-galactic post-AGB stars with the ultimate goal of improving our knowledge of the…
Detecting non-uniform period spacings in the Kepler photometry of gamma Doradus stars: methodology and case studies
T. Van Reeth, A. Tkachenko, C. Aerts +9
Context. The analysis of stellar oscillations is one of the most reliable ways to probe stellar interiors. Recent space missions such as Kepler have provided us with an opportunity…
The lead discrepancy in intrinsically s-process enriched post-AGB stars in the Magellanic Clouds
K. De smedt, H. Van Winckel, D. Kamath +4
Context: Our understanding of the s-process nucleosynthesis in asymptotic giant branch (AGB) stars is incomplete. AGB models predict, for example, large overabundances of lead (Pb)…
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…
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…
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…
Internal rotation of red giants by asteroseismology
M. P. Di Mauro, D. Cardini, R. Ventura +12
We present an asteroseismic approach to study the dynamics of the stellar interior in red-giant stars by asteroseismic inversion of the splittings induced by the stellar rotation o…
Remarkable spectral variability on the spin period of the accreting white dwarf in V455 And
S. Bloemen, D. Steeghs, K. De Smedt +4
We present spin-resolved spectroscopy of the accreting white dwarf binary V455 And. With a suggested spin period of only 67s, it has one of the fastest spinning white dwarfs known.…
Post-AGB stars in the SMC as tracers of stellar evolution: the extreme s-process enrichment of the 21 micrometer star J004441.04-732136.4
Kenneth De Smedt, Hans Van Winckel, Amanda I. Karakas +3
By virtue of their spectral types, favourable bolometric corrections as well as their constrained distances, post-AGB stars in external galaxies offer unprecedented tests to AGB nu…