10.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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79 papers · 2 filters
Tracing Molecular Stratification within an Edge-on Protoplanetary Disk
D. Ruíz-Rodríguez, J. H. Kastner, P. Hily-Blant +1
High-resolution observations of edge-on proto-planetary disks in emission from molecular species sampling different critical densities and formation pathways offer the opportunity…
VLTI images of circumbinary disks around evolved stars
Jacques Kluska, Rik Claes, Akke Corporaal +13
The new generation of VLTI instruments (GRAVITY, MATISSE) aims to produce routinely interferometric images to uncover the morphological complexity of different objects at high angu…
The asymmetric inner disk of the Herbig Ae star HD 163296 in the eyes of VLTI/MATISSE: evidence for a vortex?
J. Varga, M. Hogerheijde, R. van Boekel +133
Context. The inner few au region of planet-forming disks is a complex environment. High angular resolution observations have a key role in understanding the disk structure and the…
Investigating three Sirius-like systems with SPHERE
R. Gratton, V. D'Orazi, T. A. Pacheco +61
Sirius-like systems are wide binaries composed of a white dwarf (WD) and a companion of a spectral type earlier than M0. The WD progenitor evolves in isolation, but its wind during…
Gaia Early Data Release 3: The Gaia Catalogue of Nearby Stars
Gaia Collaboration, R. L. Smart, L. M. Sarro +420
We produce a clean and well-characterised catalogue of objects within 100\,pc of the Sun from the \G\ Early Data Release 3. We characterise the catalogue through comparisons to the…
ARMADA I: Triple Companions Detected in B-Type Binaries alpha Del and nu Gem
Tyler Gardner, John D. Monnier, Francis C. Fekel +19
Ground-based optical long-baseline interferometry has the power to measure the orbits of close binary systems at ~10 micro-arcsecond precision. This precision makes it possible to…
Viscous Heating and Boundary Layer Accretion in the Disk of Outbursting Star FU Orionis
Aaron Labdon, Stefan Kraus, Claire L Davies +11
Context. FU Orionis is the archetypal FUor star, a subclass of young stellar object (YSO) that undergo rapid brightening events, often gaining 4-6 magnitudes on timescales of days.…
A triple star in disarray -- Multi-epoch observations of T Tauri with VLT-SPHERE and LBT-LUCI
M. Kasper, K. K. R. Santhakumari, T. M. Herbst +24
T Tauri remains an enigmatic triple star for which neither the evolutionary state of the stars themselves, nor the geometry of the complex outflow system is completely understood.…
Probing episodic accretion with chemistry: CALYPSO observations of IRAM 04191+1522. Results from the CALYPSO IRAM-PdBI survey
S. Anderl, S. Maret, S. Cabrit +7
Context. The process of mass accretion in the earliest phases of star formation is still not fully understood: Does the accretion rate smoothly decline with the age of the protosta…
The GRAVITY Young Stellar Object survey IV. The CO overtone emission in 51 Oph at sub-au scales
GRAVITY Collaboration, M. Koutoulaki, R. Garcia Lopez +69
51 Oph is a Herbig Ae/Be star that exhibits strong near-infrared CO ro-vibrational emission at 2.3 micron, most likely originating in the innermost regions of a circumstellar disc.…
Characterization of very wide companion candidates to young stars with planets and disks
F. Z. Majidi, S. Desidera, J. M. Alcalá +6
Discovering wide companions of stellar systems allows us to constrain the dynamical environment and age of the latter. We studied four probable wide companions of four different st…
Activity time series of old stars from late F to early K. V. Effect on exoplanet detectability with high-precision astrometry
N. Meunier, A. -M. Lagrange, S. Borgniet
Stellar activity strongly affects and may prevent the detection of Earth-mass planets in the habitable zone of solar-type stars with radial velocity technics. Astrometry is in prin…
Magnetic braking of accreting T Tauri stars: Effects of mass accretion rate, rotation, and dipolar field strength
Lewis G. Ireland, Claudio Zanni, Sean P. Matt +1
The rotational evolution of accreting pre-main-sequence stars is influenced by its magnetic interaction with its surrounding circumstellar disk. Using the PLUTO code, we perform 2.…
The large-scale magnetic field of Proxima Centauri near activity maximum
Baptiste Klein, Jean-François Donati, Élodie M. Hébrard +5
We report the detection of a large-scale magnetic field at the surface of the slowly-rotating fully-convective M dwarf Proxima Centauri. Ten circular polarization spectra, collecte…
The dipper light curve of V715 Per: is there dust in the magnetosphere?
Erick Nagel, Jerome Bouvier
The dipper optical light curves in young stellar objects are commonly interpreted as partial or total occultation of the stellar radiation by dust surrounding the star. In this wor…
MOBSTER -- V: Discovery of a magnetic companion star to the magnetic Cep pulsator HD 156424
M. E. Shultz, Th. Rivinius, G. A. Wade +5
HD 156424 (B2 V) is a little-studied magnetic hot star in the Sco OB4 association, previously noted to display both high-frequency radial velocity (RV) variability and magnetospher…
Investigating the magnetospheric accretion process in the young pre-transitional disk system DoAr 44 (V2062~Oph). A multiwavelength interferometric, spectropolarimetric, and photometric observing campaign
J. Bouvier, E. Alecian, S. H. P. Alencar +13
Young stars interact with their accretion disk through their strong magnetosphere. We investigate the magnetospheric accretion process in the young stellar system DoAr 44. We monit…
The Magnetic Early B-type Stars IV: Breakout or Leakage? H emission as a diagnostic of plasma transport in centrifugal magnetospheres
M. E. Shultz, S. Owocki, Th. Rivinius +15
Rapidly rotating early-type stars with strong magnetic fields frequently show H emission originating in Centrifugal Magnetospheres (CMs), circumstellar structures in which centr…
Observations of edge-on protoplanetary disks with ALMA I. Results from continuum data
M. Villenave, F. Menard, W. R. F. Dent +15
We analyze a sample of 12 HST-selected edge-on protoplanetary disks for which the vertical extent of the emission layers can be constrained directly. We present ALMA high angular r…
Reading between the lines: Disk emission, wind, and accretion during the ZCMa NW outburst
A. Sicilia-Aguilar, J. Bouvier, C. Dougados +2
(Abridged) We use optical spectroscopy to investigate the disk, wind, and accretion during the 2008 ZCMa NW outburst. Over 1000 optical emission lines reveal accretion, a variable,…
Rotational spectral modulation of cloudless atmospheres for L/T Brown Dwarfs and Extrasolar Giant Planets
P. Tremblin, M. W. Phillips, A. Emery +5
The rotational spectral modulation (spectro-photometric variability) of brown dwarfs is usually interpreted as a sign of the presence of inhomogeneous cloud covers in the atmospher…
Magnetic torques on T Tauri stars: accreting vs. non-accreting systems
G. Pantolmos, C. Zanni, J. Bouvier
Classical T Tauri stars (CTTs) magnetically interact with their surrounding disks, a process that is thought to regulate their rotational evolution. In this work, we compute torque…
Discovery of a young low-mass brown dwarf transiting a fast-rotating F-type star by the Galactic Plane eXoplanet (GPX) survey
P. Benni, A. Y. Burdanov, V. V. Krushinsky +64
We announce the discovery of GPX-1 b, a transiting brown dwarf with a mass of and a radius of , the first sub-stell…
Observing protoplanetary discs with the Square Kilometre Array -- I. Characterising pebble substructure caused by forming planets
John D. Ilee, Cassandra Hall, Catherine Walsh +5
High angular resolution observations of discs at mm wavelengths (on scales of a few au) are now commonplace, but there is a current lack of a comparable angular resolution for obse…