Darwin; Extrasolar planets; Orbital telescopes; M stars; Earth-like planets; Interferometry
Abstract :
[en] The discovery of extrasolar planets is one of the greatest achievements of modern astronomy. The detection of planets that vary widely in mass demonstrates that extrasolar planets of low mass exist. In this paper, we describe a mission, called Darwin, whose primary goal is the search for, and characterization of, terrestrial extrasolar planets and the search for life. Accomplishing the mission objectives will require collaborative science across disciplines, including astrophysics, planetary sciences, chemistry, and microbiology. Darwin is designed to detect rocky planets similar to Earth and perform spectroscopic analysis at mid-infrared wavelengths (6-20 mum), where an advantageous contrast ratio between star and planet occurs. The baseline mission is projected to last 5 years and consists of approximately 200 individual target stars. Among these, 25-50 planetary systems can be studied spectroscopically, which will include the search for gases such as CO[SUB]2[/SUB], H[SUB]2[/SUB]O, CH[SUB]4[/SUB], and O[SUB]3[/SUB]. Many of the key technologies required for the construction of Darwin have already been demonstrated, and the remainder are estimated to be mature in the near future. Darwin is a mission that will ignite intense interest in both the research community and the wider public.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Cockell, C. S.; CEPSAR, The Open University, Milton Keynes, UK
Léger, A.; Institut d'Astrophysique Spatiale, Université de Paris-Sud, Orsay, France
Fridlund, M.; Astrophysics Mission Division, European Space Agency, ESTEC, Noordwijk, the Netherlands
Herbst, T. M.; Max-Planck-Institut für Astronomie, Heidelberg, Germany
Kaltenegger, L.; Harvard-Smithsonian Center for Astrophysics, Cambridge, Massachusetts
Absil, Olivier ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS)
Beichman, C.; Michelson Science Center, California Institute of Technology, Pasadena, California, USA
Benz, W.; Physikalisches Institut, University of Berne, Berne, Switzerland
Blanc, M.; Observatoire Midi-Pyrénées, Toulouse, France
Brack, A.; Centre de Biophysique Moleculaire, CNPS, Orléans, France
Chelli, A.; Laboratoire d'Astrophysique de Grenoble, CNRS, Université Joseph Fourier, Grenoble, France
Colangeli, L.; INAF-Osservatorio Astronoomico di Capodimonte, Napoli, Italy
Cottin, H.; Laboratoire Interuniversitaire des Systèmes Atmosphériques Universités Paris 12, Paris 7, CNRS, Créteil, France
Coudé du Foresto, Vincent; LESIA-Observatoire de Paris, Meudon, France
Danchi, W. C.; Astrophysics Science Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA
Defrere, Denis ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Groupe d'astrophysique des hautes énergies (GAPHE)
den Herder, J.-W.; SRON Netherlands Institute for Space Research, Utrecht, Netherlands
Eiroa, C.; Departamento Física Teórica C-XI, Facultad de Ciencas, Universidad Autonoma de Madrid, Madrid, Spain
Greaves, J.; University of St. Andrews-Physics & Astronomy, North Haugh, St. Andrews, UK
Henning, T.; Max-Planck-Institut für Astronomie, Heidelberg, Germany
Johnston, K. J.; United States Naval Observatory, Washington, DC, USA
Jones, H.; Centre for Astrophysics Research, University of Hertfordshire, Hatfield, UK
Labadie, L.; Max-Planck-Institut für Astronomie, Heidelberg, Germany
Lammer, H.; Space Research Institute, Austrian Academy of Sciences, Graz, Austria
Launhardt, R.; Max-Planck-Institut für Astronomie, Heidelberg, Germany
Lawson, P.; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA
Lay, O. P.; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA
LeDuigou, J.-M.; Centre National d'Études Spatiales, Optical Department, Toulouse, France
Liseau, R.; Onsala Space Observatory, Chalmers University of Technology, Onsala, Sweden
Malbet, F.; Laboratoire d'Astrophysique de Grenoble, CNRS, Université Joseph Fourier, Grenoble, France
Martin, S. R.
Mawet, D.; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA
Mourard, D.; Observatoire de la Côte d'Azur, Grasse, France
Moutou, C.; Laboratoire d'Astrophysique de Marseille (LAM), CNRS, Marseille, France
Mugnier, L. M.; ONERA/DOTA, Châtillon, France
Ollivier, M.; Institut d'Astrophysique Spatiale, Université de Paris-Sud, Orsay, France
Rabbia, Y. D.; Observatoire de la Côte d'Azur, Grasse, France
Raven, J. A.; Division of Plant Sciences, University of Dundee at SCRI, Scottish Crop Research Institute, Invergowrie, Dundee, UK
Rottgering, H. J. A.; Leiden Observatory, Leiden University, Leiden, The Netherlands
Rouan, D.; LESIA-PHASE-Observatoire de Paris, Meudon, France
Santos, N. C.; Centro de Astrofisica, Universidade do Porto, Porto, Portugal
Selsis, F.; CRAL (CNRS UMR 5574), Université de Lyon, École Supérieure de Lyon, Lyon, France
Serabyn, E.; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA
Shibai, H.; Graduate School of Science, Nagoya University, Nagoya, Japan
Tamura, M.; National Astronomical Observatory, Tokyo, Japan
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Westall, F.; Centre de Biophysique Moléculaire, CNRS, Orléans, France
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