S. Lafrasse
University of Grenoble
7 Papers
16 Citations
S. Lafrasse is an academic researcher from University of Grenoble. The author has contributed to research in topics: Metrology & Pixel. The author has an hindex of 3, co-authored 7 publications.
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Papers
TOI-269 b: an eccentric sub-Neptune transiting a M2 dwarf revisited with ExTrA
Marion Cointepas,Marion Cointepas,Jose-Manuel Almenara,Xavier Bonfils,François Bouchy,Nicola Astudillo-Defru,Felipe Murgas,Felipe Murgas,Felipe Murgas,J. F. Otegi,J. F. Otegi,Aurélien Wyttenbach,David R. Anderson,David R. Anderson,Étienne Artigau,B. L. Canto Martins,David Charbonneau,Karen A. Collins,Kevin I. Collins,J.-J. Correia,S. Curaba,Alain Delboulbé,X. Delfosse,Rodrigo F. Díaz,Caroline Dorn,René Doyon,Philippe Feautrier,Pedro Figueira,Pedro Figueira,T. Forveille,G. Gaisne,Tianjun Gan,L. Gluck,Ravit Helled,Coel Hellier,Laurent Jocou,P. Kern,S. Lafrasse,Nicholas M. Law,I. C. Leão,C. Lovis,Yves Magnard,Andrew W. Mann,D. Maurel,J. R. De Medeiros,C. Melo,Thibaut Moulin,Francesco Pepe,P. Rabou,S. Rochat,David R. Rodriguez,Alain Roux,Nuno C. Santos,Damien Ségransan,Eric Stadler,Eric B. Ting,J. D. Twicken,J. D. Twicken,Stéphane Udry,William Waalkes,Richard G. West,A. Wunsche,C. Ziegler,George R. Ricker,Roland Vanderspek,David W. Latham,Sara Seager,Joshua N. Winn,Jon M. Jenkins +68 more
TL;DR: In this paper, the authors presented the confirmation of a new sub-Neptune close to the transition between super-Earths and subNeptunes transiting the M2 dwarf TOI-269.
TOI-269 b: An eccentric sub-Neptune transiting a M2 dwarf revisited with ExTrA
Marion Cointepas,Marion Cointepas,Jose-Manuel Almenara,Xavier Bonfils,François Bouchy,Nicola Astudillo-Defru,Felipe Murgas,Felipe Murgas,Felipe Murgas,J. F. Otegi,J. F. Otegi,Aurélien Wyttenbach,David R. Anderson,David R. Anderson,Étienne Artigau,B. L. Canto Martins,David Charbonneau,Karen A. Collins,Kevin I. Collins,J.-J. Correia,S. Curaba,Alain Delboulbé,X. Delfosse,Rodrigo F. Díaz,Caroline Dorn,René Doyon,Philippe Feautrier,Pedro Figueira,Pedro Figueira,T. Forveille,G. Gaisne,Tianjun Gan,L. Gluck,Ravit Helled,Coel Hellier,Laurent Jocou,P. Kern,S. Lafrasse,Nicholas M. Law,I. C. Leão,C. Lovis,Yves Magnard,Andrew W. Mann,D. Maurel,J. R. De Medeiros,C. Melo,Thibaut Moulin,Francesco Pepe,P. Rabou,S. Rochat,David R. Rodriguez,Alain Roux,Nuno C. Santos,Damien Ségransan,Eric Stadler,Eric B. Ting,J. D. Twicken,J. D. Twicken,Stéphane Udry,William Waalkes,Richard G. West,A. Wunsche,C. Ziegler,George R. Ricker,Roland Vanderspek,David W. Latham,Sara Seager,Joshua N. Winn,Jon M. Jenkins +68 more
TL;DR: In this paper, the authors presented the confirmation of a new sub-Neptune close to the transition between super-Earths and subNeptunes transiting the M2 dwarf TOI- 269 (TIC 220479565, V = 14.4 mag, J = 10.9 mag, Rstar = 0.40 Rsun, Mstar =0.39 Msun, d = 57 pc) candidate has been identified in multiple TESS sectors, and validated with high-precision spectroscopy from HARPS and ground-based photometric follow
Metrology calibration and very high accuracy centroiding with the NEAT testbed
Antoine Crouzier,Fabien Malbet,Olivier Preis,François Hénault,P. Kern,Guillermo Martin,Philippe Feautrier,Eric Stadler,S. Lafrasse,A. Delboulbe,E. Behar,M. Saint-Pe,J. Dupont,S. Potin,Christophe Cara,M. Donati,E. Doumayrou,P. Lagage,A. Léger,J. M. Le Duigou,M. Shao,Renaud Goullioud +21 more
TL;DR: In this paper, the European part of the NEAT consortium is building a testbed in vacuum in order to achieve 5 × 10 -6 pixel precision for the centroid estimation.
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Metrology calibration and very high accuracy centroiding with the NEAT testbed
Antoine Crouzier,Fabien Malbet,Olivier Preis,François Hénault,P. Kern,G. Martin,Philippe Feautrier,Eric Stadler,S. Lafrasse,A. Delboulbe,E. Behar,M. Saint-Pe,J. Dupont,S. Potin,Christophe Cara,M. Donati,Eric Doumayrou,P. O. Lagage,A. Léger,J. M. LeDuigou,M. Shao,Renaud Goullioud +21 more
TL;DR: In this paper, the European part of the NEAT consortium is building a testbed in vacuum in order to achieve 5e-6 pixel precision for the centroid estimation, which is a proof of concept for the precision requirement of NEAT spacecraft.
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