Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- C. Aerts3 profiles218 · h 67
- L. Decin2 profiles159 · h 49
- H. Van Winckel2 profiles137 · h 15
- S. Poedts134 · h 46
- R. Keppens2 profiles124 · h 43
- H. Sana2 profiles117 · h 44
- A. Tkachenko3 profiles100 · h 26
- C. Maes99 · h 42
- A. de Koter2 profiles96 · h 12
- G. Nelemans90 · h 94
- V. Moshchalkov88 · h 63
- A. Van Proeyen68 · h 6
- Centre National de la Recherche ScientifiqueFR995 papers
- Institute of AstronomyRU531 papers
- Radboud University NijmegenNL455 papers
- University of AmsterdamNL451 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR360 papers
- Observatoire de ParisFR358 papers
- Laboratoire d’études spatiales et d’instrumentation en astrophysiqueFR319 papers
- Royal Observatory of BelgiumBE315 papers
- European Southern ObservatoryCL292 papers
- University of LiègeBE291 papers
- Max Planck Institute for AstronomyDE288 papers
- UCLouvainBE274 papers
38 papers · 2 filters
An asymmetry detected in the disk of Kappa CMa with the AMBER/VLTI
Anthony Meilland, Florentin Millour, Philippe Stee +7
Aims. We study the geometry and kinematics of the circumstellar environment of the Be star Kappa CMa in the Br gamma emission line and its nearby continuum. Methods. We use the VLT…
Statistical properties of a sample of periodically variable B-type supergiants - Evidence for opacity-driven gravity-mode oscillations
K. Lefever, J. Puls, C. Aerts
We have studied a sample of 28 periodically variable B-type supergiants selected from the HIPPARCOS mission and 12 comparison stars covering the whole B-type spectral range. Our go…
The shape and composition of interstellar silicate grains
M. Min, L. B. F. M. Waters, A. de Koter +3
We investigate the composition and shape distribution of silicate dust grains in the interstellar medium. The effect of the amount of magnesium in the silicate lattice is studied.…
Spitzer spectroscopy of carbon stars in the Small Magellanic Cloud
Eric Lagadec, Albert A. Zijlstra, G. C. Sloan +12
We present Spitzer Space telescope spectroscopic observations of 14 carbon-rich AGB stars in the Small Magellanic Cloud. SiC dust is seen in most of the carbon-rich stars but it is…
Direct constraint on the distance of y2 Velorum from AMBER/VLTI observations
F. Millour, R. G. Petrov, O. Chesneau +95
In this work, we present the first AMBER observations, of the Wolf-Rayet and O (WR+O) star binary system y2 Velorum. The AMBER instrument was used with the telescopes UT2, UT3, and…
Discovery of magnetic fields in three He variable Bp stars with He and Si spots
M. Briquet, S. Hubrig, M. Schoeller +1
It is essential for the understanding of stellar structure models of high mass stars to explain why constant stars, non-pulsating chemically peculiar hot Bp stars and pulsating sta…
AGB nucleosynthesis in the Large Magellanic Cloud. Detailed abundance analysis of the RV Tauri star MACHO47.2496.8
M. Reyniers, C. Abia, H. Van Winckel +4
Context. Abundance analysis of post-AGB objects as probes of AGB nucleosynthesis. Aims. A detailed photospheric abundance study is performed on the carbon-rich post-AGB candidate M…
Near-Infrared interferometry of Eta Carinae with high spatial and spectral resolution using the VLTI and the AMBER instrument
G. Weigelt
We present the first NIR spectro-interferometry of the LBV Eta Carinae. The K band observations were performed with the AMBER instrument of the ESO Very Large Telescope Interferome…
ISO Mid-Infrared Spectroscopy of Galactic Bulge AGB Stars
Joris A. D. L. Blommaert, Martin A. T. Groenewegen, Koryo Okumura +8
To study the nature of Bulge AGB stars and in particular their circumstellar dust, we have analysed mid-infrared spectra obtained with the ISOCAM CVF spectrometer in three Bulge fi…
On the efficiency of particle acceleration by rotating magnetospheres in AGN
Zaza Osmanov, Andria D. Rogava, Gianluigi Bodo
To investigate the efficiency of centrifugal acceleration of particles as a possible mechanism for the generation of ultra-high -ray nonthermal emission from TeV blazars, we stu…
Pulsations detected in the line profile variations of red giants: Modelling of line moments, line bisector and line shape
S. Hekker, C. Aerts, J. De Ridder +1
Contents: So far, red giant oscillations have been studied from radial velocity and/or light curve variations, which reveal frequencies of the oscillation modes. To characterise ra…
Abundance analysis of prime B-type targets for asteroseismology I. Nitrogen excess in slowly-rotating beta Cephei stars
T. Morel, K. Butler, C. Aerts +2
We present the results of a detailed NLTE abundance study of nine beta Cephei stars, all of them being prime targets for theoretical modelling: gamma Peg, delta Cet, nu Eri, beta C…
An asteroseismic study of the beta Cephei star beta Canis Majoris
Anwesh Mazumdar, Maryline Briquet, Maarten Desmet +1
We present the results of a detailed analysis of 452 ground-based high-resolution high S/N spectroscopic measurements spread over 4.5 years for beta Canis Majoris with the aim to d…
Constraining the wind launching region in Herbig Ae stars: AMBER/VLTI spectroscopy of HD104237
E. Tatulli, A. Isella, A. Natta +3
We investigate the origin of the emission of the Herbig Ae star HD104237 on Astronomical Unit (AU) scales. Using AMBER/VLTI at a spectral resolution R=1500 spatially…
A survey for nanodiamond features in the 3 micron spectra of Herbig Ae/Be stars
B. Acke, M. E. van den Ancker
We have carried out a survey of 60 Herbig Ae/Be stars in the 3 micron wavelength region in search for the rare spectral features at 3.43 and 3.53 micron. These features have been a…
The atypical emission-line star Hen3-209
Y. Naze, G. Rauw, D. Hutsemekers +3
We analyse observations, spanning 15 years, dedicated to the extreme emission-line object Hen3-209. Our photometric data indicate that the luminosity of the star undergoes marked v…
The compact circumstellar material around OH 231.8+4.2
M. Matsuura, O. Chesneau, A. A. Zijlstra +7
We have observed the bipolar post-AGB candidate OH 231.8+4.2, using the mid-infrared interferometer MIDI and the infrared camera with the adaptive optics system NACO on the Very La…
Probing the mass-loss history of AGB and red supergiant stars from CO rotational line profiles I. Theoretical model -- Mass-loss history unravelled in VY CMa
L. Decin, S. Hony, A. de Koter +3
Context: Mass loss plays a dominant role in the evolution of low mass stars while they are on the Asymptotic Giant Branch (AGB). The gas and dust ejected during this phase are a ma…
Spitzer observations of acetylene bands in carbon-rich AGB stars in the Large Magellanic Cloud
M. Matsuura, P. R. Wood, G. C. Sloan +13
We investigate the molecular bands in carbon-rich AGB stars in the Large Magellanic Cloud (LMC), using the InfraRed Spectrograph (IRS) on board the Spitzer Space Telescope (SST) ov…
COSMOGRAIL: the COSmological MOnitoring of GRAvItational Lenses V. The time delay in SDSS J1650+4251
C. Vuissoz, F. Courbin, D. Sluse +8
Aims: Our aim is to measure the time delay between the two gravitationally lensed images of the z = 1.547 quasar SDSS J1650+4251, in order to estimate the Hubble constant H_0. Meth…
VLT K-band spectroscopy of massive young stellar objects in (ultra-)compact HII regions
A. Bik, L. Kaper, L. B. F. M. Waters
High-quality K-band spectra of strongly reddened point sources, deeply embedded in (ultra-) compact HII regions, have revealed a population of 20 young massive stars showing no pho…
Orbital elements, masses and distance of lambda Scorpii A and B determined with the Sydney University Stellar Interferometer and high resolution spectroscopy
W. J. Tango, J. Davis, M. J. Ireland +7
The triple system HD158926 (lambda Sco) has been observed interferometrically with the Sydney University Stellar Interferometer and the elements of the wide orbit have been determi…
High-precision elements of double-lined spectroscopic binaries from combined interferometry and spectroscopy. Application to the beta Cephei star beta Centauri
M. Ausseloos, C. Aerts, K. Lefever +2
We present methodology to derive high-precision estimates of the fundamental parameters of double-lined spectroscopic binaries. We apply the methods to the case study of the double…
Near-IR spectroscopy of OH/IR stars in the Galactic Centre
E. Vanhollebeke, J. A. D. L. Blommaert, M. Schultheis +2
Context. Galactic Centre (GC) OH/IR stars can be, based on the expansion velocities of their circumstellar shells, divided into two groups which are kinematically different and the…