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
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- California Institute of TechnologyUS588 papers
- Laboratoire d’études spatiales et d’instrumentation en astrophysiqueFR578 papers
- University of GenevaCH577 papers
73 papers · 1 filter
Integrated optics for astronomical interferometry - VI. Coupling the light of the VLTI in K band
Jean-Baptiste Le Bouquin, Pierre Labeye, Fabien Malbet +8
Our objective is to prove that integrated optics (IO) is not only a good concept for astronomical interferometry but also a working technique with high performance. We used the com…
Extrasolar Planets with AMBER/VLTI, What can we expect from current performances ?
Florentin Millour, Martin Vannier, R. G. Petrov +2
We present the current performances of the AMBER / VLTI instrument in terms of differential observables (differential phase and differential visibility) and show that we are alread…
Keck Interferometer Observations of FU Orionis Objects
R. Millan-Gabet, J. D. Monnier, R. L. Akeson +31
We present new K-band long baseline interferometer observations of three young stellar objects of the FU Orionis class, V1057 Cyg, V1515 Cyg and Z CMa-SE, obtained at the Keck Inte…
SS 433 : a phenomenon imitating a Wolf-Rayet star
Yael Fuchs, L. Koch Miramond, P. Abraham
We present mid-infrared (2-12 micron) spectra of the microquasar SS 433 obtained with the Infrared Space Observatory (spectroscopic mode of ISOPHOT and ISOCAM). We compare them to…
Analysis of ground-based differential imager performance
A. Boccaletti, D. Mouillet, T. Fusco +4
In the context of extrasolar planet direct detection, we evaluated the performance of differential imaging with ground-based telescopes. This study was carried out in the framework…
A detailed spectral and morphological study of the gamma-ray supernova remnant RX J1713.7-3946 with H.E.S.S
The HESS Collaboration, F. Aharonian
We present results from deep observations of the Galactic shell-type supernova remnant (SNR) RX J1713.7-3946 (also known as G347.3-0.5) conducted with the complete H.E.S.S. array i…
Direct magnetic field detection in the innermost regions of an accretion disc
Jean-Francois Donati, Frederic Paletou, Jerome Bouvier +1
Models predict that magnetic fields play a crucial role in the physics of astrophysical accretion disks and their associated winds and jets. For example, the rotation of the disk t…
A Massive Planet to the Young Disc Star HD 81040
A. Sozzetti, S. Udry, S. Zucker +9
We report the discovery of a massive planetary companion orbiting the young disc star HD 81040. Based on five years of precise radial-velocity measurements with the HIRES and ELODI…
The bulk Lorentz factor crisis of TeV blazars : evidence for an inhomogeneous pileup energy distribution ?
Gilles Henri, Ludovic Sauge
There is growing evidence that the estimations of the beaming Doppler factor in TeV BL Lac object based on the Self Synchrotron Compton (SSC) models are in strong disagreement with…
Discovery of a nearby M9 dwarf
N. Phan-Bao, M. S. Bessell, E. L. Martin +8
We report the discovery of a new M9.0 dwarf at only 8.2 pc, which we identified in our search for nearby ultracool dwarf (I-J >= 3.0, later than M8.0) in the DENIS database. We mea…
Modal Filtering for Nulling Interferometry-First Single-Mode Conductive Waveguides in the Mid-Infrared
L. Labadie, P. Labeye, P. Kern +3
This paper presents the work achieved for the manufacturing and characterization of first single-mode waveguides to be used as modal filters for nulling interferometry in the mid-i…
Performance study of ground-based infrared Bracewell interferometers - Application to the detection of exozodiacal dust disks with GENIE
O. Absil, R. den Hartog, P. Gondoin +4
Nulling interferometry, a powerful technique for high-resolution imaging of the close neighbourhood of bright astrophysical objets, is currently considered for future space mission…
Exploring the Lower Mass Function in the young open Cluster IC 4665
W. J. de Wit, J. Bouvier, F. Palla +8
We present a study of the young (30-100Myr) open cluster IC 4665 with the aim to determine the shape of the mass function well into the brown dwarf regime. We photometrically selec…
VLTI/AMBER and VLTI/MIDI spectro-interferometric observations of the B[e] supergiant CPD-57 2874
A. Domiciano de Souza, T. Driebe, O. Chesneau +11
We present the first high spatial and spectral observations of the circumstellar envelope (CSE) of a B[e] supergiant (CPD), performed with the Very Large Telescope Interf…
Fundamental properties of pre-main sequence stars in young, southern star forming regions: metallicities
David J. James, Claudio Melo, Nuno C. Santos +1
Aims: The primary motivation for this project is to search for metal-rich star forming regions, in which, stars of super-solar metallicity will be created, as hopefully, will be ex…
Extrasolar planets and brown dwarfs around A-F type stars III. Beta-Pictoris : looking for planets, finding pulsations
F. Galland, A. M. Lagrange, S. Udry +4
In the frame of the search for extrasolar planets and brown dwarfs around early-type stars, we present the results obtained on Beta-Pictoris, which is surrounded by a circumstellar…
Extrasolar planets and brown dwarfs around A-F type stars. II. A planet found with ELODIE around the F6V star HD 33564
F. Galland, A. M. Lagrange, S. Udry +4
We present here the detection of a planet orbiting around the F6V star HD 33564. The radial velocity measurements, obtained with the ELODIE echelle spectrograph at the Haute-Proven…
The H.E.S.S. survey of the Inner Galaxy in very high-energy gamma-rays
The HESS Collaboration, F. Aharonian
We report on a survey of the inner part of the Galactic Plane in very high energy gamma-rays, with the H.E.S.S. Cherenkov telescope system. The Galactic Plane between +-30deg in lo…
A possible association of the new VHE gamma-ray source HESS J1825--137 with the pulsar wind nebula G18.0--0.7
HESS Collaboration, F. A. Aharonian
We report on a possible association of the recently discovered very high-energy -ray source HESS J1825--137 with the pulsar wind nebula (commonly referred to as G 18.0--0.7) of…
A Hubble Space Telescope ACS Search for Brown Dwarf Binaries in the Pleiades Open Cluster
H. Bouy, E. Moraux, J. Bouvier +5
We present the results of a high-resolution imaging survey for brown dwarf binaries in the Pleiades open cluster. The observations were carried out with the Advance Camera for Surv…
Widely separated binary systems of very low mass stars
N. Phan-Bao, E. L. Martin, C. Reyle +2
In this paper we review some recent detections of wide binary brown dwarf systems and discuss them in the context of the multiplicity properties of very low-mass stars and brown dw…
Investigating disk evolution: A high spatial resolution mid-infrared survey of T Tauri stars
C. McCabe, A. M. Ghez, L. Prato +3
We present a high spatial resolution, 10-20 micron survey of 65 T Tauri binary stars in Taurus, Ophiuchus, and Corona Australis using the Keck 10 m telescopes. Designed to probe th…
Results from the Wide Angle Search for Planets Prototype (WASP0) II: Stellar Variability in the Pegasus Field
Stephen R. Kane, T. A. Lister, Andrew Collier Cameron +5
Recent wide-field photometric surveys which target a specific field for long durations are ideal for studying both long and short period stellar variability. Here we report on 75 v…
Disc orientations in pre-main-sequence multiple systems. A study in southern star formation regions
Jean-Louis Monin, Francois Menard, Nicolas Peretto
Classical T Tauri stars are encircled by accretion discs most of the time unresolved by conventional imaging observation. However, numerical simulations show that unresolved apertu…