European Venus Explorer (EVE): an in-situ mission to Venus

Autor: Takeshi Imamura, P. Raizonville, Tibor S. Balint, Eve team, D. V. Titov, Chris Cochrane, Cs. Ferencz, D. Carbonne, J.-M. Charbonnier, L. V. Zasova, M. Gerasimov, Johannes Leitner, James A. Whiteway, Bernard Marty, Alexander Rodin, J. Michaud, M. Martynov, Colin Wilson, J. E. Blamont, Oleg Korablev, Sergei Pogrebenko, Eric Chassefière, J. J. López-Moreno, R. Bertrand, Francesca Ferri, Kevin H. Baines, Karen Aplin
Přispěvatelé: PLANETO - LATMOS, Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Space Research Institute of the Russian Academy of Sciences (IKI), Russian Academy of Sciences [Moscow] (RAS), Jet Propulsion Laboratory (JPL), NASA-California Institute of Technology (CALTECH), Centre National d'Études Spatiales [Toulouse] (CNES), Centre de Recherches Pétrographiques et Géochimiques (CRPG), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: Experimental Astronomy
Experimental Astronomy, Springer Link, 2009, 23 (3), pp.741-760. ⟨10.1007/s10686-008-9093-x⟩
Experimental Astronomy, 2009, 23 (3), pp.741-760. ⟨10.1007/s10686-008-9093-x⟩
ISSN: 0922-6435
1572-9508
DOI: 10.1007/s10686-008-9093-x⟩
Popis: The European Venus Explorer (EVE) mission was proposed to the European Space Agency in 2007, as an M-class mission under the Cosmic Vision Programme. Although it has not been chosen in the 2007 selection round for programmatic reasons, the EVE mission may serve as a useful reference point for future missions, so it is described here. It consists of one balloon platform floating at an altitude of 50-60 km, one descent probe provided by Russia, and an orbiter with a polar orbit which will relay data from the balloon and descent probe, and perform science observations. The balloon type preferred for scientific goals is one which oscillates in altitude through the cloud deck. To achieve this flight profile, the balloon envelope contains a phase change fluid, which results in a flight profile which oscillates in height. The nominal balloon lifetime is 7 days-enough for one full circumnavigation of the planet. The descent probe's fall through the atmosphere takes 60 min, followed by 30 min of operation on the surface. The key measurement objectives of EVE are: (1) in situ measurement from the balloon of noble gas abundances and stable isotope ratios, to study the record of the evolution of Venus; (2) in situ balloon-borne measurement of cloud particle and gas composition, and their spatial variation, to understand the complex cloud-level chemistry; (3) in situ measurements of environmental parameters and winds (from tracking of the balloon) for one rotation around the planet, to understand atmospheric dynamics and radiative balance in this crucial region. The portfolio of key measurements is complemented by the Russian descent probe, which enables the investigation of the deep atmosphere and surface. © Springer Science+Business Media B.V. 2008.
Databáze: OpenAIRE
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