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Sylvestre Lacour

Researcher at Centre national de la recherche scientifique

Publications -  105
Citations -  4548

Sylvestre Lacour is an academic researcher from Centre national de la recherche scientifique. The author has contributed to research in topics: Interferometry & Stars. The author has an hindex of 35, co-authored 104 publications receiving 3976 citations. Previous affiliations of Sylvestre Lacour include Max Planck Society & University of Sydney.

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First Light for GRAVITY: Phase Referencing Optical Interferometry for the Very Large Telescope Interferometer

R. Abuter, +131 more
TL;DR: GRAVITY as mentioned in this paper is a new instrument to coherently combine the light of the European Southern Observatory Very Large Telescope Interferometer to form a telescope with an equivalent 130 m diameter angular resolution and a collecting area of 200 m$^2$.
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Spiral Arms in the Asymmetrically Illuminated Disk of MWC 758 and Constraints on Giant Planets

TL;DR: The first near-IR scattered light detection of the transitional disk associated with the Herbig Ae star MWC 758 using data obtained as part of the Strategic Exploration of Exoplanets and Disks with Subaru, and 1.1 micron HST/NICMOS data was presented in this paper.
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A close halo of large transparent grains around extreme red giant stars

TL;DR: Spatially resolved, multiwavelength observations of circumstellar dust shells of three stars on the asymptotic giant branch of the Hertzsprung–Russell diagram show that transparency usually implies insufficient radiative pressure to drive a wind, the radiation field can accelerate these large grains through photon scattering rather than absorption—a plausible mass loss mechanism for lower-amplitude pulsating stars.
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A companion candidate in the gap of the T Cha transitional disk

TL;DR: In this paper, the presence of a gap within T Cha's disk, inferred from fitting to the spectral energy distribution, has suggested on-going planetary formation, and a companion candidate is located at 6.7 AU from the primary, well within the disk gap.