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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- Université Grenoble AlpesFR2.3k papers
- Université Joseph FourierFR1.2k papers
- Observatoire de ParisFR928 papers
- European Southern ObservatoryCL889 papers
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- 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
22 papers · 2 filters
A DEBRIS Disk Around The Planet Hosting M-star GJ581 Spatially Resolved with Herschel
J. -F. Lestrade, B. C. Matthews, B. Sibthorpe +17
Debris disks have been found primarily around intermediate and solar mass stars (spectral types A-K) but rarely around low mass M-type stars. We have spatially resolved a debris di…
SOAP-T: A tool to study the light-curve and radial velocity of a system with a transiting planet and a rotating spotted star
M. Oshagh, I. Boisse, G. Boué +4
We present an improved version of SOAP (Boisse et al. 2012) named "SOAP-T", which can generate the radial velocity variations and light-curves for systems consisting of a rotating…
Resolved Debris Discs Around A Stars in the Herschel DEBRIS Survey
Mark Booth, Grant Kennedy, Bruce Sibthorpe +12
The majority of debris discs discovered so far have only been detected through infrared excess emission above stellar photospheres. While disc properties can be inferred from unres…
Hint of a transiting extended atmosphere on 55 Cancri b
David Ehrenreich, Vincent Bourrier, Xavier Bonfils +9
The naked-eye star 55 Cancri hosts a planetary system with five known planets, including a hot super-Earth (55 Cnc e) extremely close to its star and a farther out giant planet (55…
Planet Signatures in Collisionally Active Debris Discs: scattered light images
Philippe Thebault, Quentin Kral, Steve Ertel
Planet perturbations are often invoked as a potential explanation for many spatial structures that have been imaged in debris discs. So far this issue has been mostly investigated…
Planet gaps in the dust layer of 3D protoplanetary disks. II. Observability with ALMA
J. -F. Gonzalez, C. Pinte, S. T. Maddison +2
[Abridged] Aims: We provide predictions for ALMA observations of planet gaps that account for the specific spatial distribution of dust that results from consistent gas+dust dynami…
GTC OSIRIS transiting exoplanet atmospheric survey: detection of sodium in XO-2b from differential long-slit spectroscopy
D. K. Sing, C. M. Huitson, M. Lopez-Morales +8
We present two transits of the hot-Jupiter exoplanet XO-2b using the Gran Telescopio Canarias (GTC). The time series observations were performed using long-slit spectroscopy of XO-…
High Contrast Imaging of the Close Environment of HD 142527 -
J. Rameau, G. Chauvin, A. -M. Lagrange +4
Context. It has long been suggested that circumstellar disks surrounding young stars may be the signposts of planets, and still more since the recent discoveries of embedded subste…
Direct imaging of extra-solar planets in star forming regions: Lessons learned from a false positive around IM Lup
Dimitri Mawet, Olivier Absil, Guillaume Montagnier +8
Most exoplanet imagers consist of ground-based adaptive optics coronagraphic cameras which are currently limited in contrast, sensitivity and astrometric precision, but advantageou…
Impact of angular differential imaging on circumstellar disk images
J. Milli, D. Mouillet, A. M. Lagrange +4
Direct imaging of circumstellar disks requires high-contrast and high-resolution techniques. The angular differential imaging (ADI) technique is one of them, initially developed fo…
Comparison of different exoplanet mass detection limit methods using a sample of main-sequence intermediate-type stars
Nadège Meunier, Anne-Marie Lagrange, Katrien De Bondt
The radial velocity (RV) technique is a powerful tool for detecting extrasolar planets and deriving mass detection limits that are useful for constraining planet pulsations and for…
An insight in the surroundings of HR4796
A. -M. Lagrange, J. Milli, A. Boccaletti +8
HR4796 is a young, early A-type star harbouring a well structured debris disk, shaped as a ring with sharp inner edges. It forms with the M-type star HR4796B a binary system, with…
Morphology of the very inclined debris disk around HD 32297
Anthony Boccaletti, Jean-Charles Augereau, Anne-Marie Lagrange +6
Direct imaging of circumstellar disks at high angular resolution is mandatory to provide morphological information that bring constraints on their properties, in particular the spa…
Temporal variations in the evaporating atmosphere of the exoplanet HD 189733b
A. Lecavelier des Etangs, V. Bourrier, P. J. Wheatley +8
Atmospheric escape has been detected from the exoplanet HD 209458b through transit observations of the hydrogen Lyman-alpha line. Here we present spectrally resolved Lyman-alpha tr…
A hot Uranus transiting the nearby M dwarf GJ3470. Detected with HARPS velocimetry. Captured in transit with TRAPPIST photometry
X. Bonfils, M. Gillon, S. Udry +15
We report on the discovery of GJ3470b, a transiting hot Uranus of mass m_p = 14.0+-1.8 Mearth, radius R_p = 4.2+-0.6 Rearth and period P=3.3371+-0.0002 day. Its host star is a near…
The frequency of giant planets around metal-poor stars
A. Mortier, N. C. Santos, A. Sozzetti +4
Context. The discovery of about 700 extrasolar planets, so far, has lead to the first statistics concerning extrasolar planets. The presence of giant planets seems to depend on ste…
The SOPHIE search for northern extrasolar planets. V. Follow-up of ELODIE candidates: Jupiter-analogs around Sun-like stars
I. Boisse, F. Pepe, C. Perrier +21
We present radial-velocity measurements obtained in a programs underway to search for extrasolar planets with the spectrograph SOPHIE at the 1.93-m telescope of the Haute-Provence…
Submillimeter Array Observations of the RX J1633.9-2442 Transition Disk: Evidence for Multiple Planets in the Making
Lucas A. Cieza, Geoffrey S. Mathews, Jonathan P. Williams +6
We present continuum high resolution Submillimeter Array (SMA) observations of the transition disk object RX J1633.9-2442, which is located in the Ophiuchus molecular cloud and has…
High-contrast spectroscopy of SCR J1845-6357 B
Arthur Vigan, Mickaël Bonnefoy, Gaël Chauvin +2
Spectral characterization of sub-stellar companions is essential to understand their composition and formation processes. However, the large contrast ratio of the brightness of eac…
Orbital characterization of the βPictoris b giant planet
G. Chauvin, A. -M. Lagrange, H. Beust +8
In June 2010, we confirmed the existence of a giant planet in the disk of the young star Beta Pictoris, located between 8 AU and 15 AU from the star. This young planet offers the r…
The HARPS search for southern extra-solar planets XXXV. Super-Earths around the M-dwarf neighbors Gl433 and Gl667C
X. Delfosse, X. Bonfils, T. Forveille +11
M dwarfs have been found to often have super-Earth planets with short orbital periods. Such stars are thus preferential targets in searches for rocky or ocean planets in the solar…
99 Herculis: Host to a Circumbinary Polar-ring Debris Disk
G. M. Kennedy, M. C. Wyatt, B. Sibthorpe +6
We present resolved Herschel images of a circumbinary debris disk in the 99 Herculis system. The primary is a late F-type star. The binary orbit is well characterised and we conclu…