S
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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Journal ArticleDOI
First Light for GRAVITY: Phase Referencing Optical Interferometry for the Very Large Telescope Interferometer
R. Abuter,Matteo Accardo,António Amorim,Narsireddy Anugu,G. Avila,N. Azouaoui,Myriam Benisty,Jean-Philippe Berger,Nicolas Blind,H. Bonnet,Pierre Bourget,Wolfgang Brandner,R. Brast,A. Buron,Leonard Burtscher,Frédéric Cassaing,F. Chapron,Elodie Choquet,Y. Clénet,C. Collin,V. Coudé du Foresto,W. J. de Wit,P. T. de Zeeuw,Casey Deen,F. Delplancke-Ströbele,Roderick Dembet,Frederic Derie,Jason Dexter,Gilles Duvert,M. Ebert,Andreas Eckart,Frank Eisenhauer,Michael Esselborn,P. Fédou,G. Finger,Paulo J. V. Garcia,C. E. Garcia Dabo,R. J. García López,Eric Gendron,R. Genzel,Stefan Gillessen,Frédéric Gonté,Paulo Gordo,M. Grould,Ulrich Grözinger,S. Guieu,P. Haguenauer,O. Hans,Xavier Haubois,M. Haug,F. Haussmann,Th. Henning,Stefan Hippler,Matthew Horrobin,Armin Huber,Z. Hubert,N. Hubin,Christian A. Hummel,Gerd Jakob,A. Janssen,Lieselotte Jochum,Laurent Jocou,Andreas Kaufer,S. Kellner,L. Kern,Pierre Kervella,Mario Kiekebusch,Ralf Klein,Yitping Kok,Johann Kolb,Martin Kulas,Sylvestre Lacour,Vincent Lapeyrere,B. Lazareff,J.-B. Le Bouquin,Pierre Léna,Rainer Lenzen,Samuel Lévêque,Magdalena Lippa,Yves Magnard,Leander Mehrgan,M. Mellein,Antoine Mérand,J. Moreno-Ventas,Thibaut Moulin,Ewald Müller,F. Müller,Udo Neumann,S. Oberti,T. Ott,L. Pallanca,Johana Panduro,Luca Pasquini,T. Paumard,Isabelle Percheron,K. Perraut,Guy Perrin,A. Pflüger,O. Pfuhl,T. Phan Duc,P. M. Plewa,Dan Popovic,Sebastian Rabien,A. Ramirez,Juan-Luis Ramos,C. Rau,M. Riquelme,R.-R. Rohloff,G. Rousset,J. Sanchez-Bermudez,Silvia Scheithauer,Markus Schöller,Nicolas Schuhler,Jason Spyromilio,Christian Straubmeier,Eckhard Sturm,Marcos Suarez,Konrad R. W. Tristram,N. Ventura,F. H. Vincent,Idel Waisberg,Imke Wank,J. Weber,Ekkehard Wieprecht,M. Wiest,Erich Wiezorrek,Markus Wittkowski,Julien Woillez,Burkhard Wolff,Senol Yazici,D. Ziegler,Gérard Zins +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$^2$.
Journal ArticleDOI
Spiral Arms in the Asymmetrically Illuminated Disk of MWC 758 and Constraints on Giant Planets
Carol A. Grady,Takayuki Muto,Jun Hashimoto,Misato Fukagawa,T. Currie,Beth Biller,Christian Thalmann,Michael L. Sitko,Ray W. Russell,John P. Wisniewski,Ruobing Dong,Jungmi Kwon,S. Sai,Jeremy Hornbeck,Glenn Schneider,Dean C. Hines,Amaya Moro-Martin,Markus Feldt,Th. Henning,J.-U. Pott,M. Bonnefoy,Jordy Bouwman,Sylvestre Lacour,A. Mueller,Attila Juhasz,A. Crida,Gael Chauvin,Sean M. Andrews,David J. Wilner,Adam L. Kraus,Scott Dahm,Thomas P. Robitaille,Hannah Jang-Condell,Lyu Abe,Eiji Akiyama,Wolfgang Brandner,Timothy D. Brandt,Joseph C. Carson,Sebastian Egner,Katherine B. Follette,Miwa Goto,Olivier Guyon,Yutaka Hayano,M. Hayashi,Saeko S. Hayashi,Klaus W. Hodapp,Miki Ishii,Masanori Iye,Markus Janson,Ryo Kandori,G. R. Knapp,Tomoyuki Kudo,Nobuhiko Kusakabe,Masayuki Kuzuhara,Satoshi Mayama,Michael W. McElwain,Taro Matsuo,Shoken Miyama,Jun-Ichi Morino,Tetsuro Nishimura,Tae-Soo Pyo,G. Serabyn,Hiroshi Suto,Ryuji Suzuki,Michihiro Takami,Naruhisa Takato,Hiroshi Terada,Daigo Tomono,Edwin L. Turner,Makoto Watanabe,Toru Yamada,Hideki Takami,Tomonori Usuda,Motohide Tamura +73 more
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.
Journal ArticleDOI
A close halo of large transparent grains around extreme red giant stars
Barnaby Norris,Peter G. Tuthill,Michael J. Ireland,Michael J. Ireland,Michael J. Ireland,Sylvestre Lacour,Albert A. Zijlstra,Foteini Lykou,Thomas M. Evans,Thomas M. Evans,Paul Stewart,Timothy R. Bedding +11 more
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.
Journal ArticleDOI
Spatially resolved rotation of the broad-line region of a quasar at sub-parsec scale
Eckhard Sturm,Jason Dexter,Oliver Pfuhl,Matthias Raphael Stock,Ric Davies,Dieter Lutz,Y. Clénet,Andreas Eckart,Frank Eisenhauer,Reinhard Genzel,Damien Gratadour,Sebastian F. Hönig,Makoto Kishimoto,Sylvestre Lacour,Florentin Millour,Hagai Netzer,Guy Perrin,B. M. Peterson,P.-O. Petrucci,D. Rouan,Idel Waisberg,Julien Woillez,António Amorim,Wolfgang Brandner,N. M. Förster Schreiber,Paulo J. V. Garcia,Stefan Gillessen,T. Ott,T. Paumard,K. Perraut,Silvia Scheithauer,Christian Straubmeier,Linda J. Tacconi,Felix Widmann +33 more
TL;DR: In this article, the authors reported a spatial offset of ten micro-arcseconds or about 0.03 parsecs between the red and blue photo-centres of the broad Paschen-α line of the quasar 3C 273 perpendicular to the direction of its radio jet.
Journal ArticleDOI
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.