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Bernard Lazareff
Researcher at University of Grenoble
Publications - 45
Citations - 2554
Bernard Lazareff is an academic researcher from University of Grenoble. The author has contributed to research in topics: Stars & Very Large Telescope. The author has an hindex of 19, co-authored 45 publications receiving 2125 citations. Previous affiliations of Bernard Lazareff include Max Planck Society & Centre national de la recherche scientifique.
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Journal ArticleDOI
Detection of the gravitational redshift in the orbit of the star S2 near the Galactic centre massive black hole
Roberto Abuter,António Amorim,Narsireddy Anugu,M. Bauböck,Myriam Benisty,Jean-Philippe Berger,Jean-Philippe Berger,Nicolas Blind,H. Bonnet,Wolfgang Brandner,A. Buron,C. Collin,F. Chapron,Yann Clénet,V. dCoudé u Foresto,P. T. de Zeeuw,P. T. de Zeeuw,Casey Deen,F. Delplancke-Ströbele,Roderick Dembet,Roderick Dembet,Jason Dexter,Gilles Duvert,Andreas Eckart,Andreas Eckart,Frank Eisenhauer,Gert Finger,N. M. Förster Schreiber,P. Fédou,Paulo J. V. Garcia,Paulo J. V. Garcia,R. Garcia Lopez,R. Garcia Lopez,Feng Gao,Eric Gendron,Reinhard Genzel,Reinhard Genzel,Stefan Gillessen,Paulo Gordo,Maryam Habibi,Xavier Haubois,M. Haug,F. Haußmann,Th. Henning,Stefan Hippler,Matthew Horrobin,Z. Hubert,Z. Hubert,Norbert Hubin,A. Jimenez Rosales,Lieselotte Jochum,Laurent Jocou,Andreas Kaufer,S. Kellner,Sarah Kendrew,Sarah Kendrew,Pierre Kervella,Yitping Kok,Martin Kulas,Sylvestre Lacour,V. Lapeyrère,Bernard Lazareff,J.-B. Le Bouquin,Pierre Léna,Magdalena Lippa,Rainer Lenzen,Antoine Mérand,E. Müler,E. Müler,Udo Neumann,Thomas Ott,L. Palanca,Thibaut Paumard,Luca Pasquini,Karine Perraut,Guy Perrin,Oliver Pfuhl,P. M. Plewa,Sebastian Rabien,A. Ramirez,Joany Andreina Manjarres Ramos,C. Rau,G. Rodríguez-Coira,R.-R. Rohloff,Gérard Rousset,J. Sanchez-Bermudez,J. Sanchez-Bermudez,Silvia Scheithauer,Markus Schöller,N. Schuler,Jason Spyromilio,Odele Straub,Christian Straubmeier,Eckhard Sturm,Linda J. Tacconi,Konrad R. W. Tristram,Frederic H. Vincent,S. von Fellenberg,Imke Wank,Idel Waisberg,Felix Widmann,Ekkehard Wieprecht,M. Wiest,Erich Wiezorrek,Julien Woillez,S. Yazici,S. Yazici,D. Ziegler,Gérard Zins +108 more
TL;DR: Eisenhauer et al. as mentioned in this paper detect the combined gravitational redshift and relativistic transverse Doppler effect for S2 of z = Δλ / λ ≈ 200 km s−1/c with different statistical analysis methods.
Journal ArticleDOI
First light for GRAVITY: Phase referencing optical interferometry for the Very Large Telescope Interferometer
Roberto 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,Yann Clénet,C. Collin,V. Coudé du Foresto,W. J. de Wit,P. T. de Zeeuw,P. T. de Zeeuw,Casey Deen,F. Delplancke-Ströbele,R. Dembet,Frederic Derie,Jason Dexter,Gilles Duvert,M. Ebert,Andreas Eckart,Andreas Eckart,Frank Eisenhauer,Michael Esselborn,P. Fédou,Gert Finger,Paulo J. V. Garcia,C. E. Garcia Dabo,R. Garcia Lopez,Eric Gendron,R. Genzel,Stefan Gillessen,Frédéric Gonté,Paulo Gordo,M. Grould,Ulrich Grözinger,S. Guieu,S. Guieu,Pierre Haguenauer,O. Hans,Xavier Haubois,Marcus Haug,F. Haussmann,Th. Henning,Stefan Hippler,Matthew Horrobin,Armin Huber,Z. Hubert,Norbert Hubin,Christian A. Hummel,Gerd Jakob,A. Janssen,Lieselotte Jochum,Laurent Jocou,Andreas Kaufer,S. Kellner,Sarah Kendrew,Sarah Kendrew,L. Kern,Pierre Kervella,Pierre Kervella,Mario Kiekebusch,Ralf Klein,Yitping Kok,Johann Kolb,Martin Kulas,Sylvestre Lacour,V. Lapeyrère,Bernard 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,Ewald Müller,F. Müller,Udo Neumann,Sylvain Oberti,T. Ott,Laurent Pallanca,Johana Panduro,Luca Pasquini,Thibaut Paumard,Isabelle Percheron,Karine Perraut,Guy Perrin,A. Pflüger,Oliver Pfuhl,T. Phan Duc,P. M. Plewa,Dan Popovic,Sebastian Rabien,A. Ramirez,Joany Andreina Manjarres Ramos,C. Rau,M. Riquelme,R.-R. Rohloff,Gérard Rousset,J. Sanchez-Bermudez,Silvia Scheithauer,Markus Schöller,Nicolas Schuhler,Jason Spyromilio,Christian Straubmeier,Eckhard Sturm,Marcos Suarez,Konrad R. W. Tristram,N. Ventura,Frederic 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 +138 more
TL;DR: GRAVITY as discussed by the authors 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 m2.
Journal ArticleDOI
Detection of orbital motions near the last stable circular orbit of the massive black hole SgrA
Roberto Abuter,António Amorim,M. Bauböck,Jean-Philippe Berger,H. Bonnet,Wolfgang Brandner,Yann Clénet,V. Coudé du Foresto,P. T. de Zeeuw,P. T. de Zeeuw,Casey Deen,Jason Dexter,Gilles Duvert,Andreas Eckart,Andreas Eckart,Frank Eisenhauer,N. M. Förster Schreiber,Paulo J. V. Garcia,Paulo J. V. Garcia,Paulo J. V. Garcia,Feng Gao,Eric Gendron,Reinhard Genzel,Reinhard Genzel,Stefan Gillessen,P. Guajardo,Maryam Habibi,Xavier Haubois,Th. Henning,Stefan Hippler,Matthew Horrobin,Armin Huber,A. Jiménez-Rosales,Laurent Jocou,Pierre Kervella,Sylvestre Lacour,Sylvestre Lacour,V. Lapeyrère,Bernard Lazareff,J.-B. Le Bouquin,Pierre Léna,Magdalena Lippa,Thomas Ott,Johana Panduro,Thibaut Paumard,Karine Perraut,Guy Perrin,Oliver Pfuhl,P. M. Plewa,Sebastian Rabien,G. Rodríguez-Coira,Gérard Rousset,Amiel Sternberg,Amiel Sternberg,Odele Straub,Christian Straubmeier,Eckhard Sturm,Linda J. Tacconi,Frederic H. Vincent,S. von Fellenberg,Idel Waisberg,Felix Widmann,Ekkehard Wieprecht,Erich Wiezorrek,Julien Woillez,S. Yazici,S. Yazici +66 more
TL;DR: In this article, the position centroids exhibit clockwise looped motion on the sky, on scales of typically 150 μ as over a few tens of minutes, corresponding to about 30% the speed of light.
Journal ArticleDOI
Detection of the CN Zeeman Effect in Molecular Clouds
TL;DR: In this article, a 30 m IRAM telescope was used to detect the Zeeman effect in the 3 mm lines of CN toward seven dense molecular clouds, including the Orion Molecular Cloud (OMC), DR21OH and M17 SW molecular clouds.
Journal ArticleDOI
Structure of Herbig AeBe disks at the milliarcsecond scale: A statistical survey in the H band using PIONIER-VLTI
Bernard Lazareff,Jean-Phillipe Berger,Jacques Kluska,J.-B. Le Bouquin,Myriam Benisty,Fabien Malbet,Chris Koen,C. Pinte,C. Pinte,W. F. Thi,Olivier Absil,Fabien Baron,Alain Delboulbé,Gilles Duvert,Andrea Isella,Laurent Jocou,Attila Juhasz,Stefan Kraus,R. Lachaume,R. Lachaume,François Ménard,Rafael Millan-Gabet,John D. Monnier,T. Moulin,Karine Perraut,S. Rochat,Ferréol Soulez,Ferréol Soulez,Michel Tallon,Éric Thiébaut,Wesley A. Traub,G. Zins +31 more
TL;DR: In this paper, the radial and vertical structure of the Herbig AeBe stars at scales of order 1 au and the properties of the dust grains were inferred by fits of a few simple models: ellipsoids and broadened rings with azimuthal modulation.