R
René Doyon
Publications - 33
Citations - 517
René Doyon is an academic researcher. The author has contributed to research in topics: Planet & Exoplanet. The author has an hindex of 10, co-authored 33 publications receiving 463 citations.
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Journal ArticleDOI
Direct imaging discovery of 12-14 Jupiter mass object orbiting a young binary system of very low-mass stars
P. Delorme,Jonathan Gagné,J. H. Girard,Anne-Marie Lagrange,G. Chauvin,M-E. Naud,David Lafrenière,René Doyon,Adric R. Riedel,M. Bonnefoy,L. Malo +10 more
TL;DR: In this article, the authors reported the direct imaging discovery of 2MASS J01033563-5515561(AB)b, a 12-14 MJup companion at a projected separation of 84 AU from a pair of young late M stars.
Journal ArticleDOI
Characterization of the L 98-59 multi-planetary system with HARPS: two confirmed terrestrial planets and a mass upper limit on the third
R. Cloutier,Nicola Astudillo-Defru,X. Bonfils,J. S. Jenkins,George R. Ricker,R. Vanderspek,D. W. Latham,Sara Seager,J. N. Winn,J. M. Jenkins,J. M. Almenara,François Bouchy,X. Delfosse,Matias Diaz,Rodrigo F. Díaz,René Doyon,P. Figueira,T. Forveille,T. Jaffe,Nicolás T. Kurtovic,C. Lovis,M. Mayor,K. Menou,Edward H. Morgan,Robert L. Morris,Philip S. Muirhead,Felipe Murgas,Francesco Pepe,N. C. Santos,D. Segransan,Jeffrey C. Smith,P. Tenenbaum,Guillermo Torres,Stéphane Udry,M. Vezie,J. Villansenor +35 more
TL;DR: In this paper, the authors measured the masses of the known transiting planets in the L 98-59 system using precise radial velocity (RV) measurements taken with the HARPS spectrograph.
Journal ArticleDOI
In search of dust clouds: photometric monitoring of a sample of late l and t dwarfs
TL;DR: In this article, the authors observed a sample of nine brown dwarfs near the L/T transition and observed periodic flux variations with an evolving light curve and peak-to-peak amplitudes of {approx} 0.06 mag over a period of 3.0 hr, adding to the short list of early T dwarfs with semi-periodic photometric variability.
Proceedings ArticleDOI
NIRPS: an adaptive-optics assisted radial velocity spectrograph to chase exoplanets around M-stars
Francois Wildi,Nicolas Blind,V. Reshetov,Otero F. Hernandez,L. Genolet,U. Conod,Michael Sordet,A. Segovilla,Jose Luis Rasilla,Denis Brousseau,Simon Thibault,B. Delabre,T. Bandy,M. Sarajlic,Alexandre Cabral,S. Bovay,Ph. Vallée,François Bouchy,René Doyon,É. Artigau,Francesco Pepe,Janis Hagelberg,C. Melo,X. Delfosse,P. Figueira,N. C. Santos,J. I. González Hernández,J. R. De Medeiros,Rafael Rebolo,C. Broeg,Willy Benz,Isabelle Boisse,L. Malo,U. Käufl,L. Saddlemyer +34 more
TL;DR: NIRPS as discussed by the authors uses a high order adaptive optics system to couple the starlight into a fiber corresponding to 0.4 to 1.8 micron, which can detect and characterize low-mass planets in the habitable zone of M dwarfs.
Journal ArticleDOI
The VAST Survey - I. Companions and the unexpected X-ray detection of B6-A7 stars
R. J. De Rosa,J. Bulger,J. Patience,B. Leland,Bruce Macintosh,Adam C. Schneider,Inseok Song,Christian Marois,James R. Graham,Michael S. Bessell,René Doyon +10 more
TL;DR: In this article, the authors tested the hypothesis that unresolved lower-mass companions are the source of the unexpected X-ray detections of stars in this spectral type range, and found that the multiple star frequency based on companions resolved within the ROSAT error ellipse is found to be 43 + 66 %.