H
Hannu Parviainen
Researcher at Spanish National Research Council
Publications - 74
Citations - 1467
Hannu Parviainen is an academic researcher from Spanish National Research Council. The author has contributed to research in topics: Planet & Exoplanet. The author has an hindex of 21, co-authored 74 publications receiving 1176 citations. Previous affiliations of Hannu Parviainen include University of Helsinki.
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Journal ArticleDOI
Atmospheric characterization of the ultra-hot Jupiter MASCARA-2b/KELT-20b.
N. Casasayas-Barris,Enric Palle,Fei Yan,Gang Chen,S. Kohl,M. Stangret,Hannu Parviainen,Christiane Helling,N. Watanabe,S. Czesla,Akihiko Fukui,Pilar Montañés-Rodríguez,Erick Nagel,Norio Narita,Lisa Nortmann,Grzegorz Nowak,J.H.M.M. Schmit,M. R. Zapatero Osorio +17 more
TL;DR: In this article, the authors studied the atmosphere of one of these particular hot planets, MASCARA-2b/KELT-20b, using four transit observations with high resolution spectroscopy facilities.
Journal ArticleDOI
Kepler423b: a half-Jupiter mass planet transiting a very old solar-like star
Davide Gandolfi,Hannu Parviainen,H. J. Deeg,A. F. Lanza,M. Fridlund,P. G. Prada Moroni,Roi Alonso,T. Augusteijn,J. Cabrera,Thomas M. Evans,Stephan Geier,A. P. Hatzes,Tomer Holczer,Sergio Hoyer,Tuomas Kangas,Tsevi Mazeh,I. Pagano,Lev Tal-Or,Brandon Tingley +18 more
TL;DR: In this paper, the spectroscopic confirmation of the Kepler object of interest KOI-183.01 (Kepler-423b), a half-Jupiter mass planet transiting an old solar-like star every 2.7 days, was reported.
Journal ArticleDOI
The GTC exoplanet transit spectroscopy survey. VI. A spectrally-resolved Rayleigh scattering slope in GJ 3470b
Gang Chen,Eike W. Guenther,Enric Palle,Lisa Nortmann,Grzegorz Nowak,S. Kunz,Hannu Parviainen,Felipe Murgas +7 more
TL;DR: In this article, the authors conducted an optical transmission spectroscopy project to assess the impacts of stellar activity and to determine whether or not GJ 3470b hosts a hydrogen-rich gas envelop.
Journal ArticleDOI
The CARMENES search for exoplanets around M dwarfs. Two planets on the opposite sides of the radius gap transiting the nearby M dwarf LTT 3780
Grzegorz Nowak,Rafael Luque,Hannu Parviainen,Enric Palle,Karan Molaverdikhani,V. J. S. Béjar,J. Lillo-Box,Cristina Rodríguez-López,Jose A. Caballero,Mathias Zechmeister,V. M. Passegger,Carlos Cifuentes,Andreas Schweitzer,Norio Narita,B. Cale,Néstor Espinoza,Felipe Murgas,D. Hidalgo,M. R. Zapatero Osorio,Francisco J. Pozuelos,F. J. Aceituno,Pedro J. Amado,Khalid Barkaoui,David Barrado,F. F. Bauer,Zouhair Benkhaldoun,D. A. Caldwell,N. Casasayas Barris,Priyanka Chaturvedi,Guo Chen,Karen Collins,K. I. Collins,M. Cortés-Contreras,Ian Crossfield,J. de León,E. Díez Alonso,S. Dreizler,M. El Mufti,E. Esparza-Borges,Zahra Essack,A. Fukui,E. Gaidos,Michaël Gillon,Erica J. Gonzales,P. Guerra,A. P. Hatzes,Th. Henning,E. Herrero,Katharine Hesse,Teriyuki Hirano,Steve B. Howell,Sandra V. Jeffers,Emmanuel Jehin,J. M. Jenkins,Adrian Kaminski,J. Kemmer,John F. Kielkopf,Diana Kossakowski,Takayuki Kotani,M. Kürster,M. Lafarga,D. W. Latham,Nicholas M. Law,Jack J. Lissauer,Nicolas Lodieu,A. Madrigal-Aguado,Andrew W. Mann,Bob Massey,Rachel A. Matson,E. Matthews,Pilar Montañés-Rodríguez,D. Montes,Juan Carlos Morales,Mayuko Mori,Erick Nagel,Mahmoudreza Oshagh,S. Pedraz,Peter Plavchan,D. L. Pollacco,A. Quirrenbach,Sabine Reffert,Ansgar Reiners,I. Ribas,George R. Ricker,Mark E. Rose,Martin Schlecker,J. E. Schlieder,Sara Seager,M. Stangret,S. Stock,Motohide Tamura,Angelle Tanner,Johanna Teske,Trifon Trifonov,J. D. Twicken,R. Vanderspek,D. Watanabe,Justin M. Wittrock,C. Ziegler,F. Zohrabi +99 more
TL;DR: In this article, the authors presented the discovery and characterisation of two transiting planets observed by the Transiting Exoplanet Survey Satellite (TESS) orbiting the nearby (d ~ 22 pc), bright (J ~ 9 mag) M3.5 dwarf LTT 3780 (TOI-732) via ground-based photometry and determined their masses using precise radial velocities measured with the CARMENES spectrograph.
Journal ArticleDOI
XX. CoRoT-20b: A very high density, high eccentricity transiting giant planet
M. Deleuil,A. S. Bonomo,Sylvio Ferraz-Mello,Anders Erikson,François Bouchy,M. Havel,Suzanne Aigrain,J. M. Almenara,Roi Alonso,M. Auvergne,A. Baglin,Pierre Barge,Pascal Bordé,H. Bruntt,J. Cabrera,Stefania Carpano,C. Cavarroc,Sz. Csizmadia,Cilia Damiani,H. J. Deeg,Rudolf Dvorak,M. Fridlund,G. Hebrard,Davide Gandolfi,M. Gillon,Eike W. Guenther,Tristan Guillot,A. P. Hatzes,Laurent Jorda,A. Léger,Helmut Lammer,Tsevi Mazeh,C. Moutou,Marc Ollivier,Aviv Ofir,Hannu Parviainen,D. Queloz,Heike Rauer,Adrián Rodríguez,D. Rouan,A. Santerne,Jean Schneider,Lev Tal-Or,Brandon Tingley,J. Weingrill,Günther Wuchterl +45 more
TL;DR: The CoRoT-20b is a super-dense giant planet with a mass of 4.24 +/- 0.23 MJ and a radius of 0.87 +/- 1.10 g/cm^3 as mentioned in this paper.