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
90 papers · 2 filters
Episodic accretion in binary protostars emerging from self-gravitating solar mass cores
R. Riaz, S. Vanaverbeke, D. R. G. Schleicher
Observations show a large spread in the luminosities of young protostars, which are frequently explained in the context of episodic accretion. We here test this scenario using nume…
The Belgian repository of fundamental atomic data and stellar spectra (BRASS). I. Cross-matching atomic databases of astrophysical interest
Mike Laverick, Alex Lobel, Thibault Merle +5
Fundamental atomic parameters, such as oscillator strengths, play a key role in modelling and understanding the chemical composition of stars in the universe. Despite the significa…
Halo Coronal Mass Ejections during Solar Cycle 24: reconstruction of the global scenario and geoeffectiveness
Camilla Scolini, Mauro Messerotti, Stefaan Poedts +1
In this study we present a statistical analysis of 53 fast Earth-directed halo CMEs observed by the SOHO/LASCO instrument during the period Jan. 2009-Sep. 2015, and we use this CME…
Characterizing the turbulent porosity of stellar-wind structure generated by the line-deshadowing instability
Stanley P. Owocki, Jon O. Sundqvist
We analyze recent 2D simulations of the nonlinear evolution of the line-deshadowing instability (LDI) in hot-star winds, to quantify how the associated highly clumped density struc…
Low-frequency photospheric and wind variability in the early-B supergiant HD 2905
S. Simón-Díaz, C. Aerts, M. A. Urbaneja +5
Despite the important advances in space asteroseismology during the last decade, the early phases of evolution of stars with masses above 15 M have been only vaguel…
The close circumstellar environment of Betelgeuse - V. Rotation velocity and molecular envelope properties from ALMA
Pierre Kervella, Leen Decin, Anita M. S. Richards +6
We observed Betelgeuse using ALMA's extended configuration in band 7 (f~340 GHz, λ~0.88 mm), resulting in a very high angular resolution of 18 mas. Using a solid body rotation mode…
Resonant absorption of surface sausage and surface kink modes under photospheric conditions
Dae Jung Yu, Tom Van Doorsselaere, Marcel Goossens
We study the effect of resonant absorption of surface sausage and surface kink modes under photospheric conditions where the slow surface sausage modes undergo resonant damping in…
Stellar flares observed in long cadence data from the Kepler mission
Tom Van Doorsselaere, Hoda Shariati, Jonas Debosscher
We aim to perform a statistical study of stellar flares observed by Kepler. We want to study the flare amplitude, duration, energy and occurrence rates, and how they are related to…
The VLT-FLAMES Tarantula Survey
Jorick S. Vink, C. J. Evans, J. Bestenlehner +5
We present a number of notable results from the VLT-FLAMES Tarantula Survey (VFTS), an ESO Large Program during which we obtained multi-epoch medium-resolution optical spectroscopy…
The fast transient sky with Gaia
Thomas Wevers, Peter G. Jonker, Simon T. Hodgkin +8
The ESA Gaia satellite scans the whole sky with a temporal sampling ranging from seconds and hours to months. Each time a source passes within the Gaia field of view, it moves over…
BRITE-Constellation high-precision time-dependent photometry of the early-O-type supergiant Puppis unveils the photospheric drivers of its small- and large-scale wind structures
Tahina Ramiaramanantsoa, Anthony F. J. Moffat, Robert Harmon +33
From months of dual-band optical photometric monitoring at the mmag level, BRITE-Constellation has revealed two simultaneous types of variability in the O4I(n)fp star …
2D wind clumping in hot, massive stars from hydrodynamical line-driven instability simulations using a pseudo-planar approach
J. O. Sundqvist, S. P. Owocki, J. Puls
Context: Clumping in the radiation-driven winds of hot, massive stars arises naturally due to the strong, intrinsic instability of line-driving (the `LDI'). But LDI wind models hav…
A cautionary tale of interpreting O-C diagrams: period instability in a classical RR Lyr Star Z CVn mimicking as a distant companion
M. Skarka, J. Liška, R. Dřevěný +4
We present a comprehensive study of Z CVn, an RR Lyrae star that shows long-term cyclic variations of its pulsation period. A possible explanation suggested from the shape of the O…
MPI-AMRVAC 2.0 for Solar and Astrophysical Applications
C. Xia, J. Teunissen, I. El Mellah +2
We report on the development of MPI-AMRVAC version 2.0, which is an open-source framework for parallel, grid-adaptive simulations of hydrodynamic and magnetohydrodynamic (MHD) astr…
Discovery of a Metal-poor, Luminous Post-AGB Star that Failed the Third Dredge-up
D. Kamath, H. Van Winckel, P. R. Wood +4
Post-asymptotic giant branch (post-AGB) stars are known to be chemically diverse. In this paper we present the first observational evidence of a star that has failed the third dred…
Constraining the near-core rotation of the gamma Doradus star 43 Cygni using BRITE-Constellation data
Konstanze Zwintz, Timothy Van Reeth, Andrew Tkachenko +8
Photometric time series of the Dor star 43 Cyg obtained with the BRITE-Constellation nano-satellites allow us to study its pulsational properties in detail and to constrain its…
Temporal relations between magnetic bright points and the solar sunspot cycle
D. Utz, R. Muller, T. Van Doorsselaere
The Sun shows a global magnetic field cycle traditionally best visible in the photosphere as a changing sunspot cycle featuring roughly an 11 year period. In addition we know that…
Hertzsprung-Russell diagram and mass distribution of barium stars
A. Escorza, H. M. J. Boffin, A. Jorissen +6
With the availability of parallaxes provided by the Tycho-Gaia Astrometric Solution, it is possible to construct the Hertzsprung-Russell diagram (HRD) of barium and related stars w…
The circumstellar envelope around the S-type AGB star W Aql Effects of an eccentric binary orbit
S. Ramstedt, S. Mohamed, W. H. T. Vlemmings +9
The CO(J=3-2) emission from the CSE of the binary S-type AGB star W Aql has been observed at subarcsecond resolution using ALMA. The aim of this paper is to investigate the wind pr…
The 17 February 2013 sunquake in the context of the active region's magnetic field configuration
Lucie M. Green, Gherardo Valori, Francesco P. Zuccarello +3
Sunquakes are created by the hydrodynamic response of the lower atmosphere to a sudden deposition of energy and momentum. In this study we investigate a sunquake that occurred in N…
Multi-technique investigation of the binary fraction among A-F type candidate hybrid variable stars discovered by Kepler
P. Lampens, Y. Frémat, L. Vermeylen +14
Hundreds of candidate hybrid pulsators of intermediate type A-F were revealed by the recent space missions. Hybrid pulsators allow to study the full stellar interiors, where p- and…
Radiation-pressure-driven sub-Keplerian rotation of the disc around the AGB star L2 Pup
Thomas J. Haworth, Richard A. Booth, Ward Homan +3
We study the sub-Keplerian rotation and dust content of the circumstellar material around the asymptotic giant branch (AGB) star L Puppis. We find that the thermal pressure gra…
Slippage of Jets Explained by the Magnetic Topology of NOAA Active Region 12035
R. Joshi, B. Schmieder, R. Chandra +3
In this study, we present the investigation of eleven recurring solar jets originated from two different sites (site 1 and site 2) close to each other (~ 11 Mm) in the NOAA active…
Magneto-asteroseismology of massive magnetic pulsators
B. Buysschaert, C. Neiner, C. Aerts
Simultaneously and coherently studying the large-scale magnetic field and the stellar pulsations of a massive star provides strong complementary diagnostics suitable for detailed s…