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
27 papers · 2 filters
A study of the s-process in the carbon-rich post-AGB stars IRAS06530-0213 and IRAS08143-4406 on the basis of VLT-UVES spectra
Maarten Reyniers, Hans Van Winckel, Roberto Gallino +1
In an effort to extend the still limited sample of s-process enriched post-AGB stars, high-resolution, high signal-to-noise VLT+UVES spectra of the optical counterparts of the infr…
Evidence for grain growth in T Tauri disks
F. Przygodda, R. van Boekel, P. Àbrahàm +3
In this article we present the results from mid-infrared spectroscopy of a sample of 14 T Tauri stars with silicate emission. The qualitative analysis of the spectra reveals a corr…
Direct measurement of the size and shape of the present-day stellar wind of Eta Carinae
R. van Boekel, P. Kervella, M. Schoeller +7
We present new high angular resolution observations at near-IR wavelengths of the core of the Luminous Blue Variable Eta Carinae, using NAOS-CONICA at the VLT and VINCI at the VLT…
The peculiar circumstellar environment of NGC2024-IRS2
A. Lenorzer, A. Bik, A. de Koter +5
We re-examine the nature of NGC2024-IRS2 in light of the recent discovery of the late O-type star, IRS2b, located 5 arcsec from IRS2. Using L-band spectroscopy, we set a lower limi…
Determining the Metallicity of Cepheid Stars in the SMC, LMC and the Galaxy
M. Mottini, F. Primas, M. Romaniello +1
The Cepheid Period-Luminosity relation is unquestionably one of the most powerful tools at our disposal for determining the extragalactic distance scale. While significant progress…
Observational Tests of Damping by Resonant Absorption in Coronal Loop Oscillations
Markus J. Aschwanden, Richard W. Nightingale, Jesse Andries +2
One of the proposed damping mechanisms of coronal (transverse) loop oscillations in the kink-mode is resonant absorption as a result of the Alfven speed variation at the outer boun…
On application of multi-colour photometry of Scuti stars
J. Daszy{ń}ska-Daszkiewicz, W. A. Dziembowski, A. A. Pamyatnykh
In Scuti star models, the photometric amplitudes and phases exhibit a strong dependence on convection, which enters through the complex parameter, , which describes the bolo…
Optical Spectroscopy of IRAS 02091+6333
S. Kimeswenger, A. Bacher, M. Emprechtinger +8
We present a detailed spectroscopic investigation, spanning four winters, of the asymptotic giant branch (AGB) star IRAS 02091+6333. Zijlstra & Weinberger (2002) found a giant wall…
The distance to the LMC cluster NGC 1866; clues from the cluster Cepheid population
M. A. T. Groenewegen, M. Salaris
(abridged) Recent investigations aimed at estimating the distance to the young LMC cluster NGC1866 have made use of Red Clump stars in the surrounding LMC field, together with empi…
Age dependence of the Vega Phenomenon: Theory
C. Dominik, G. Decin
In a separate paper (Decin et al 2003), we have re-examined the observations of IR excess obtained with the ISO satellite and discussed the ages of stars with excess. The amount of…
The age dependence of the Vega phenomenon: Observations
G. Decin, C. Dominik, L. B. F. M. Waters +1
We study the time dependency of Vega-like excesses using infrared studies obtained with the imaging photopolarimeter ISOPHOT on board of ISO. We review the different studies publis…
Detection of elements beyond the Ba-peak in VLT+UVES spectra of post-AGB stars
Maarten Reyniers, Hans Van Winckel
In this letter, we report on our successful systematic search for lines of elements beyond the Ba-peak in spectra of s-process enriched post-AGB stars. Using newly released atomic…
First Detection of Millimeter Dust Emission from Brown Dwarf Disks
R. Klein, D. Apai, I. Pascucci +2
We report results from the first deep millimeter continuum survey targeting Brown Dwarfs (BDs). The survey led to the first detection of cold dust in the disks around two young BDs…
IRAS 08544-4431 : a new post-AGB star in a binary system surrounded by a dusty disc
T. Maas, H. Van Winckel, T. Lloyd Evans +5
We present an analysis of our extensive data-set on IRAS 08544-4431. It is the first object we discuss of our newly defined sample of stars, selected for their position in the 'RV…
Constraints on stellar convection from multi-colour photometry of Delta Scuti stars
J. Daszynska-Daszkiewicz, W. A. Dziembowski, A. A. Pamyatnykh
In Delta Scuti star models, the calculated amplitude ratios and phase differences for multi-colour photometry exhibit a strong dependence on convection. These observables are tools…
Mass loss and rotational CO emission from Asymptotic Giant Branch stars
F. Kemper, R. Stark, K. Justtanont +5
We present submillimeter observations of rotational transitions of carbon monoxide from J = 2 -> 1 up to 7 -> 6 for a sample of Asymptotic Giant Branch stars and red supergiants. I…
Preparing the COROT space mission: incidence and characterisation of pulsation in the Lower Instability Strip
E. Poretti, R. Garrido, P. J. Amado +24
By pursuing the goal to find new variables in the COROT field-of-view we characterised a sample of stars located in the lower part of the instability strip. Our sample is composed…
ISOGAL: A deep survey of the obscured inner Milky Way with ISO at 7 and 15 micron and with DENIS in the near-infrared
A. Omont, G. Gilmore, C. Alard +38
The ISOGAL project is an infrared survey of specific regions sampling the Galactic Plane selected to provide information on Galactic structure,stellar populations,stellar mass-loss…
Explanatory Supplement of the ISOGAL-DENIS Point Source Catalogue
F. Schuller, S. Ganesh, M. Messineo +10
We present version 1.0 of the ISOGAL-DENIS Point Source Catalogue (PSC), containing more than 100,000 point sources detected at 7 and/or 15 micron in the ISOGAL survey of the inner…
Long Period Variables detected by ISO in the SMC
M. -R. L. Cioni, J. A. D. L. Blommaert, M. A. T. Groenewegen +8
This article presents the study of the light-curves extracted from the MACHO database of a sample of stars observed by the ISO in the SMC. These stars belong to the ISO-Mini-Survey…
How are Emerging Flux, Flares and CMEs Related to Magnetic Polarity Imbalance in MDI Data?
L. M. Green, P. Demoulin, C. H. Mandrini +1
In order to understand whether major flares or coronal mass ejections (CMEs) can be related to changes in the longitudinal photospheric magnetic field, we study 4 young active regi…
Gemini observations of Wolf-Rayet Stars in the Local Group Starburst Galaxy IC10
P. A. Crowther, L. Drissen, J. B. Abbott +2
We present Gemini-N GMOS and CFHT MOS spectroscopy of Wolf-Rayet candidates in the Local Group dwarf galaxy IC10 that were previously identified by Massey et al. and Royer et al. F…
Identification of the ionizing source of NGC 2024
A. Bik, A. Lenorzer, L. Kaper +4
We propose the late-O, early-B star IRS2b as the ionizing source of the Flame Nebula (NGC 2024). It has been clear that such a hot, massive star must be present in this heavily obs…
The circumstellar envelope of the C-rich post-AGB star HD 56126
S. Hony, A. G. G. M. Tielens, L. B. F. M. Waters +1
We present a detailed study of the circumstellar envelope of the post-asymptotic giant branch ``21 micron object'' HD 56126. We build a detailed dust radiative transfer model of th…