10.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR3.4k papers
- Université Grenoble AlpesFR2.3k papers
- Université Joseph FourierFR1.2k papers
- Observatoire de ParisFR928 papers
- European Southern ObservatoryCL889 papers
- Sorbonne UniversitéFR706 papers
- Max Planck Institute for AstronomyDE679 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR623 papers
- Université Paris CitéFR596 papers
- California Institute of TechnologyUS588 papers
- Laboratoire d’études spatiales et d’instrumentation en astrophysiqueFR578 papers
- University of GenevaCH577 papers
31 papers · 2 filters
Strong near-infrared emission in the sub-AU disk of the Herbig Ae star HD163296: evidence for refractory dust?
M. Benisty, A. Natta, A. Isella +12
We present new long-baseline spectro-interferometric observations of the HerbigAe star HD163296 obtained in the H and K bands with the AMBER instrument at VLTI. The observations co…
Revealing the sub-AU asymmetries of the inner dust rim in the disk around the Herbig Ae star R CrA
S. Kraus, K. -H. Hofmann, F. Malbet +5
Models predict that in the innermost AU of the disk around Herbig Ae/Be star, the dust disk forms a "puffed-up" inner rim, which should result in a strongly asymmetric brightness d…
Panchromatic observations and modeling of the HV Tau C edge-on disk
G. Duchene, C. McCabe, C. Pinte +12
We present new high spatial resolution (<~ 0.1") 1-5 micron adaptive optics images, interferometric 1.3 mm continuum and 12CO 2-1 maps, and 350 micron, 2.8 and 3.3 mm fluxes measur…
The Taurus Spitzer Survey: New Candidate Taurus Members Selected Using Sensitive Mid-Infrared Photometry
L. M. Rebull, D. L. Padgett, C. -E. McCabe +31
We report on the properties of pre-main-sequence objects in the Taurus molecular clouds as observed in 7 mid- and far-infrared bands with the Spitzer Space Telescope. There are 215…
Complex magnetic topology and strong differential rotation on the low-mass T Tauri star V2247 Oph
J. -F. Donati, M. B. Skelly, J. Bouvier +7
From observations collected with the ESPaDOnS spectropolarimeter at the Canada-France-Hawaii Telescope, we report the detection of Zeeman signatures on the low-mass classical TTaur…
On the power spectrum of solar surface flows
M. Rieutord, T. Roudier, F. Rincon +4
The aim of this work is to give new observational constraints on solar surface flows by determining the horizontal scale dependence of the velocity and intensity fields, as represe…
The Pulsation of Chi Cygni Imaged by Optical Interferometry; a Novel Technique to Derive Distance and Mass of Mira Stars
S. Lacour, E. Thiébaut, G. Perrin +13
We present infrared interferometric imaging of the S-type Mira star Chi Cygni. The object was observed at four different epochs in 2005-2006 with the IOTA optical interferometer (H…
Disk and Envelope Structure in Class 0 Protostars: I. The Resolved Massive Disk in Serpens FIRS 1
Melissa L. Enoch, Stuartt Corder, Michael M. Dunham +1
We present the first results of a program to characterize the disk and envelope structure of typical Class 0 protostars in nearby low-mass star forming regions. We use Spitzer IRS…
The outbursts properties of AM CVn stars
Iwona Kotko, Jean-Pierre Lasota, Guillaume Dubus
We briefly summarize the observational properties of ultra-compact binaries called AM CVn stars. We analize their outbursts originating from the thermal-viscous instability in heli…
Resolving the asymmetric inner wind region of the yellow hypergiant IRC+10420 with VLTI/AMBER in low and high spectral resolution mode
T. Driebe, J. H. Groh, K. -H. Hofmann +15
We obtained near-infrared long-baseline interferometry of IRC+10420 with the AMBER instrument of ESO's Very Large Telescope Interferometer (VLTI) in low and high spectral resolutio…
Candidate free-floating super-Jupiters in the young sigma Orionis open cluster
G. Bihain, R. Rebolo, M. R. Zapatero Osorio +13
Free-floating substellar candidates with estimated theoretical masses of as low as ~5 Jupiter masses have been found in the ~3 Myr old sigma Orionis open cluster. As the overlap wi…
Young T-Dwarf Candidates in IC 348
A. S. M. Burgess, E. Moraux, J. Bouvier +3
The determination of the lower-end of the initial mass function (IMF) provides strong constraints on star formation theories. We report here on a search for isolated planetary-mass…
Star formation history of CMa R1: I. Wide-field X-ray study of the young stellar population
J. Gregorio-Hetem, T. Montmerle, C. V. Rodrigues +3
The CMa R1 star-forming region contains several compact clusters as well as many young early-B stars. It is associated with a well-known bright rimmed nebula, the nature of which i…
C2D Spitzer-IRS spectra of disks around T Tauri stars. IV. Crystalline silicates
J. Olofsson, J. -C. Augereau, E. F. van Dishoeck +13
Dust grains in the planet forming regions around young stars are expected to be heavily processed due to coagulation, fragmentation and crystallization. This paper focuses on the c…
A spectroscopic survey of the youngest field stars in the solar neighbourhood. I. The optically bright sample
P. Guillout, A. Klutsch, A. Frasca +8
We present the first results of a ground-based programme conducted on 1-4m class telescopes. Our sample consists of 1097 active and presumably young stars, all of them being optica…
The circumstellar disc in the Bok globule CB 26: Multi-wavelength observations and modelling of the dust disc and envelope
J. Sauter, S. Wolf, R. Launhardt +10
Circumstellar discs are expected to be the nursery of planets. Grain growth within such discs is the first step in the planet formation process. The Bok globule CB 26 harbours such…
Multi-wavelength observing of a forming solar-like star
S. G. Gregory, E. Flaccomio, C. Argiroffi +7
V2129 Oph is a 1.35 solar mass classical T Tauri star, known to possess a strong and complex magnetic field. By extrapolating from an observationally derived magnetic surface map,…
Spatially resolving the inhomogeneous structure of the dynamical atmosphere of Betelgeuse with VLTI/AMBER
K. Ohnaka, K. -H. Hofmann, M. Benisty +8
We present spatially resolved high-spectral resolution K-band observations of the red supergiant Betelgeuse (alpha Ori) using AMBER at the Very Large Telescope Interferometer (VLTI…
Kinematic analysis and membership status of TWA22ABR
R. Teixeira, C. Ducourant, G. Chauvin +3
TWA22 was initially regarded as a member of the TW Hydrae association (TWA). In addition to being one of the youngest (~8Myr) and nearest (~20pc) stars to Earth, TWA22 has proven t…
The young, tight and low mass binary TWA22AB: a new calibrator for evolutionary models ? Orbit, spectral types and temperatures determination
M. Bonnefoy, G. Chauvin, C. Dumas +7
Tight binaries discovered in young, nearby associations, with known distances, are ideal targets to provide dynamical mass measurements to test the physics of evolutionary models a…
Mass-radius relation of low and very low-mass stars revisited with the VLTI
B. -O. Demory, D. Segransan, T. Forveille +7
We measured the radii of 7 low and very low-mass stars using long baseline interferometry with the VLTI interferometer and its VINCI and AMBER near-infrared recombiners. We use the…
On the correlation between Ca and Halpha solar emission and consequences for stellar activity observations
Nadege Meunier, Xavier Delfosse
The correlation between Ca and Halpha chromospheric emission, known to be positive in the solar case, has been found to vary between -1 and 1 for other stars. Our objective is to u…
Surface magnetic fields on two accreting T Tauri stars: CV Cha and CR Cha
G. A. J. Hussain, A. Collier Cameron, M. M. Jardine +12
We have produced brightness and magnetic field maps of the surfaces of CV Cha and CR Cha: two actively accreting G and K-type T Tauri stars in the Chamaeleon I star-forming cloud w…
Imaging the asymmetric dust shell around CI Cam with long baseline optical interferometry
N. D. Thureau, J. D. Monnier, W. A. Traub +6
We present the first high angular resolution observation of the B[e] star/X-ray transient object CI Cam, performed with the two-telescope Infrared Optical Telescope Array (IOTA), i…