G. Gaisn'e
4 Papers
G. Gaisn'e is an academic researcher. The author has contributed to research in topics: Exoplanet & Radial velocity. The author has an hindex of 1, co-authored 4 publications.
Chat about Author
Papers
Detailed stellar activity analysis and modelling of GJ 832. Reassessment of the putative habitable zone planet GJ 832c
P. Gorrini,Nicola Astudillo-Defru,Stefan Dreizler,Mario Damasso,R. D'iaz,Xavier Bonfils,S. V. Jeffers,J. Barnes,Fabio Del Sordo,J. M. Almenara,Étienne Artigau,François Bouchy,David Charbonneau,Xavier Delfosse,René Doyon,Pedro Figueira,T. Forveille,Carole A. Haswell,M. J. L'opez-Gonz'alez,C. Melo,Ronald E. Mennickent,G. Gaisn'e,N. Morales,Felipe Murgas,Francesco Pepe,E. Rodr'iguez,Nuno C. Santos,Lev Tal-Or,Yiannis Tsapras,S. U. U. D. Concepci'on,D. D. Astronom'ia,Chile,I. F. Astrophysik,Georg-August-Universitat,German,Departamento de Matem'atica y F'isica Aplicadas,U. Concepci'on,I. Torino,Italy.,International School for Advanced Studies,Icifi,Argentina,U. G. Alpes,France.,M. F. M. Research,S. O. Sciences,T. O. University,UK.,Institute for Space Sciences,Spain.,Inaf - Catania,Institut de Recherche sur les Exoplanetes,U. D. Montr'eal,Canada,Observatoire du Mont-M'egantic,Observatoire de Geneve,U. Geneve,Switzerland,C. F. A. HarvardSmithsonian,Usa,E. Observatory,I. D. A. E. C. D. Espacco,U. Porto,Portugal,Inst. de Astrof'isica de Andaluc'ia,Portuguese Space Agency,Instituto de Astrof'isica de Canarias,D. D. Astrof'isica,U. L. Laguna,D. Astronomia,Faculdade de Ciências,D. Physics,A. University,Israel,Astrophysics Geophysics,Space Science Data Center,Zentrum fur Astronomie der Universitat Heidelberg +76 more
TL;DR: In this paper , the radial velocity time series of Gliese-832 (GJ 832) was modelled with Keplerians and Gaussian process (GP) regressions alongside activity indicators to subsequently compare them within a Bayesian framework.
GJ 3090 b: one of the most favourable mini-Neptune for atmospheric characterisation
J. M. Almenara,Xavier Bonfils,J. F. Otegi,O. Attia,Martin Turbet,Nicola Astudillo-Defru,Karen A. Collins,A. Polanski,Vincent Bourrier,Coel Hellier,Carl Ziegler,Francois Bouchy,Cesar Briceno,David Charbonneau,Marion Cointepas,Kevin Collins,Ian J. M. Crossfield,Xavier Delfosse,R. D'iaz,Caroline Dorn,John P. Doty,T. Forveille,G. Gaisn'e,Tian Gan,Ravit Helled,Katharine Hesse,Jon M. Jenkins,Eric L. N. Jensen,David W. Latham,N. Law,Andrew W. Mann,Shude Mao,Brian McLean,Felipe Murgas,G. Myers,Sara Seager,A. Shporer,Thiam-Guan Tan,Joseph D. Twicken,Joshua N. Winn +39 more
TL;DR: In this article , the authors reported the detection of a mini-Neptune on a 2.9-day orbit transiting a bright ( K = 7 . 3 mag) M2 dwarf located at 22 pc.
5
Atmosphere of the mini-Neptune transiting the bright M dwarf GJ 3090 can be characterized
J. M. Almenara,Xavier Bonfils,J. F. Otegi,O. Attia,Martin Turbet,Nicola Astudillo-Defru,Karen A. Collins,A. Polanski,Vincent Bourrier,Coel Hellier,Carl Ziegler,Francois Bouchy,Cesar Briceno,David Charbonneau,Marion Cointepas,Kevin Collins,Ian J. M. Crossfield,Xavier Delfosse,R. D'iaz,Caroline Dorn,John P. Doty,T. Forveille,G. Gaisn'e,Tian Gan,Ravit Helled,Katharine Hesse,Jon M. Jenkins,Eric L. N. Jensen,David W. Latham,N. Law,Andrew W. Mann,Shude Mao,Brian McLean,Felipe Murgas,G. Myers,Sara Seager,A. Shporer,Thiam-Guan Tan,Joseph D. Twicken,Joshua N. Winn +39 more
TL;DR: In this article , the authors reported the detection of a mini-Neptune on a 2.9-day orbit transiting a bright (K = 7.3 mag) M2 dwarf located at 22 pc.
3
Characterisation of stellar activity of M dwarfs. I. Long-timescale variability in a large sample and detection of new cycles
L. Mignon,N. Meunier,Xavier Delfosse,Xavier Bonfils,N. C. Santos,T. Forveille,G. Gaisn'e,Nicola Astudillo-Defru,Christophe Lovis,Stéphane Udry +9 more
TL;DR: In this article , the authors analyzed a large sample of 177 M dwarfs observed with HARPS (2003-2020) in order to characterise the long-term variability of these stars.