216 citations · 1.3k across the 23 of their papers we have counts for
23 papers
A self-consistent orbital architecture for GG Tau A. I. Simultaneous orbital fitting of the hierarchical triple
A. Lacquement, H. Beust, G. Duchêne +4
GG Tau is a young triple system with the close pair, --, and , surrounded by a massive circumtriple disk with a large inner cavity difficult to explain in a bin…
Destructuring the disk of AB Aurigae: Dynamics and accretion
Anthony Boccaletti, Emmanuel Di Folco, Anne Dutrey +23
In this paper, we present near-IR polarized images of the AB Aur disk at three epochs spanning 3.85 years with SPHERE/IRDIS, as well as Halpha images obtained with SPHERE/ZIMPOL at…
Chemistry in the GG Tau A Disk: Constraints from H2D+, N2H+, and DCO+ High Angular Resolution ALMA Observations
Parashmoni Kashyap, Liton Majumdar, Anne Dutrey +17
Resolved molecular line observations are essential for gaining insight into the physical and chemical structure of protoplanetary disks, particularly in cold, dense regions where p…
Radial distribution of the carbonaceous nano-grains in the protoplanetary disk around HD 169142
Marie Devinat, Émilie Habart, Éric Pantin +4
HD 169142 is part of the class of (pre-)transitional protoplanetary disks showing multiple carbon nanodust spectroscopic signatures (aromatic, aliphatic) dominating the infrared sp…
Lack of other molecules in CO-rich debris discs: is it primordial or secondary gas?
Grigorii V. Smirnov-Pinchukov, Attila Moór, Dmitry A. Semenov +5
The nature of the gas in CO-rich debris discs remains poorly understood, as it could either be a remnant from the earlier Class II phase or of secondary origin, driven by the destr…
The hybrid disks: a search and study to better understand evolution of disks
J. Pericaud, E. Di Folco, A. Dutrey +2
The increased sensitivity of millimeter-wave facilities now makes possible the detection of low amounts of gas in debris disks. Some of the gas-rich debris disks harbor peculiar pr…
Chemistry in Disks X: The Molecular Content of Proto-planetary Disks in Taurus
S. Guilloteau, L. Reboussin, A. Dutrey +6
(abridged) We used the IRAM 30-m to perform a sensitive wideband survey of 30 protoplanetary disks in the Taurus Auriga region. We simultaneously observed HCO(3-2), HCN(3-2), C…
The shadow of the Flying Saucer: A very low temperature for large dust grains
S. Guilloteau, V. Piétu, E. Chapillon +6
Dust determines the temperature structure of protoplanetary disks. However, dust temperature determinations almost invariably rely on a complex modeling of the Spectral Energy Dist…
HD141569A: disk dissipation caught in action
J. Péricaud, E. Di Folco, A. Dutrey +3
Debris disks are usually thought to be gas-poor, the gas being dissipated by accretion or evaporation during the protoplanetary phase. HD141569A is a 5 Myr old star harboring a fam…
Mapping CO Gas in the GG Tauri A Triple System with 50 AU Spatial Resolution
Ya-Wen Tang, Anne Dutrey, Stephane Guilloteau +11
We aim to unveil the observational imprint of physical mechanisms that govern planetary formation in the young, multiple system GG Tau A. We present ALMA observations of CO…
Circumbinary Ring, Circumstellar disks and accretion in the binary system UY Aurigae
Ya-Wen Tang, Anne Dutrey, Stephane Guilloteau +8
Recent exo-planetary surveys reveal that planets can orbit and survive around binary stars. This suggests that some fraction of young binary systems which possess massive circumbin…
The masses of young stars: CN as a probe of dynamical masses
S. Guilloteau, M. Simon, V. Piétu +4
Aims: We attempt to determine the masses of single or multiple young T Tauri and HAeBe stars from the rotation of their Keplerian disks. Methods:We used the IRAM PdBI interferomete…
GG Tau: the fifth element
E. Di Folco, A. Dutrey, J. -B. Le Bouquin +9
We aim at unveiling the observational imprint of physical mechanisms that govern planetary formation in young, multiple systems. In particular, we investigate the impact of tidal t…
Faint disks around classical T Tauri stars: small but dense enough to form planets?
V. Piétu, S. Guilloteau, E. di Folco +2
(abridged) Most Class II sources (of nearby star forming regions) are surrounded by disks with weak millimeter continuum emission. These "faint" disks may hold clues to the disk di…
A near-infrared interferometric survey of debris disc stars. III. First statistics based on 42 stars observed with CHARA/FLUOR
O. Absil, D. Defrère, V. Coudé du Foresto +17
(Abridged) Dust is expected to be ubiquitous in extrasolar planetary systems owing to the dynamical activity of minor bodies. Inner dust populations are, however, still poorly know…
A sensitive survey for 13CO, CN, H2CO and SO in the disks of T Tauri and Herbig Ae stars
S. Guilloteau, E. Di Folco, A. Dutrey +3
We use the IRAM 30-m telescope to perform a sensitive search for CN N=2-1 in 42 T Tauri or Herbig Ae systems located mostly in the Taurus-Auriga region. CO J=2-1 is observed…
Hot exozodiacal dust resolved around Vega with IOTA/IONIC
D. Defrère, O. Absil, J. -C. Augereau +10
Although debris discs have been detected around a significant number of main-sequence stars, only a few of them are known to harbour hot dust in their inner part where terrestrial…
High-sensitivity search for clumps in the Vega Kuiper-belt. New PdBI 1.3mm observations
Vincent Piétu, Emmanuel Di Folco, Stéphane Guilloteau +2
Previous studies have found that Vega is surrounded by an extended debris disc that is very smooth in the far infrared, but displays possible clumpiness at 850micron and dust emiss…
Evidence against the young hot-Jupiter around BD +20 1790
P. Figueira, M. Marmier, X. Bonfils +11
Context. The young active star BD +20 1790 is believed to host a substellar companion, revealed by radial-velocity measurements that detected the reflex motion induced on the paren…
An interferometric study of the Fomalhaut inner debris disk. I. Near-infrared detection of hot dust with VLTI/VINCI
Olivier Absil, Bertrand Mennesson, Jean-Baptiste Le Bouquin +3
The innermost parts of dusty debris disks around main sequence stars are currently poorly known due to the high contrast and small angular separation with their parent stars. Using…
Dust in the inner regions of debris disks around A stars
R. L. Akeson, D. R. Ciardi, R. Millan-Gabet +11
We present infrared interferometric observations of the inner regions of two A-star debris disks, beta Leo and zeta Lep, using the FLUOR instrument at the CHARA interferometer on b…
New insights on the AU-scale circumstellar structure of FU Orionis
Fabien Malbet, Régis Lachaume, Jean-Philippe Berger +7
We report new near-infrared, long-baseline interferometric observations at the AU scale of the pre-main-sequence star FU Orionis with the PTI, IOTA and VLTI interferometers. This y…
The spinning-top Be star Achernar from VLTI-VINCI
A. Domiciano de Souza, P. Kervella, S. Jankov +4
We report here the first observations of a rapidly rotating Be star, Eridani, using Earth-rotation synthesis on the Very Large Telescope (VLT) Interferometer. Our measures corr…