Malbet, Fabien, Leger, Alain, Shao, Michael, Goullioud, Renaud, Lagage, Pierre-Olivier, Brown, Anthony G. A., Cara, Christophe, Durand, Gilles, Eiroa, Carlos, Feautrier, Philippe, Jakobsson, Bjoern, Hinglais, Emmanuel, Kaltenegger, Lisa ORCID: 0000-0002-0436-1802, Labadie, Lucas, Lagrange, Anne-Marie, Laskar, Jacques ORCID: 0000-0003-2634-789X, Liseau, Rene, Lunine, Jonathan ORCID: 0000-0003-2279-4131, Maldonado, Jesus ORCID: 0000-0002-2218-5689, Mercier, Manuel, Mordasini, Christoph, Queloz, Didier, Quirrenbach, Andreas ORCID: 0000-0002-3302-1962, Sozzetti, Alessandro ORCID: 0000-0002-7504-365X, Traub, Wesley, Absil, Olivier ORCID: 0000-0002-4006-6237, Alibert, Yann ORCID: 0000-0002-4644-8818, Andrei, Alexandre Humberto, Arenou, Frederic ORCID: 0000-0003-2837-3899, Beichman, Charles, Chelli, Alain, Cockell, Charles S., Duvert, Gilles, Forveille, Thierry, Garcia, Paulo J. V., Hobbs, David, Krone-Martins, Alberto ORCID: 0000-0002-2308-6623, Lammer, Helmut, Meunier, Nadege, Minardi, Stefano ORCID: 0000-0002-7563-103X, de Almeida, Andre Moitinho ORCID: 0000-0003-0822-5995, Rambaux, Nicolas, Raymond, Sean ORCID: 0000-0001-8974-0758, Roettgering, Huub J. A., Sahlmann, Johannes ORCID: 0000-0001-9525-3673, Schuller, Peter A., Segransan, Damien, Selsis, Franck ORCID: 0000-0001-9619-5356, Surdej, Jean, Villaver, Eva ORCID: 0000-0003-4936-9418, White, Glenn J. and Zinnecker, Hans (2012). High precision astrometry mission for the detection and characterization of nearby habitable planetary systems with the Nearby Earth Astrometric Telescope (NEAT). Exp. Astron., 34 (2). S. 385 - 414. DORDRECHT: SPRINGER. ISSN 0922-6435

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Abstract

A complete census of planetary systems around a volume-limited sample of solar-type stars (FGK dwarfs) in the Solar neighborhood (d a parts per thousand currency signaEuro parts per thousand 15 pc) with uniform sensitivity down to Earth-mass planets within their Habitable Zones out to several AUs would be a major milestone in extrasolar planets astrophysics. This fundamental goal can be achieved with a mission concept such as NEAT-the Nearby Earth Astrometric Telescope. NEAT is designed to carry out space-borne extremely-high-precision astrometric measurements at the 0.05 mu as (1 sigma) accuracy level, sufficient to detect dynamical effects due to orbiting planets of mass even lower than Earth's around the nearest stars. Such a survey mission would provide the actual planetary masses and the full orbital geometry for all the components of the detected planetary systems down to the Earth-mass limit. The NEAT performance limits can be achieved by carrying out differential astrometry between the targets and a set of suitable reference stars in the field. The NEAT instrument design consists of an off-axis parabola single-mirror telescope (D = 1 m), a detector with a large field of view located 40 m away from the telescope and made of 8 small movable CCDs located around a fixed central CCD, and an interferometric calibration system monitoring dynamical Young's fringes originating from metrology fibers located at the primary mirror. The mission profile is driven by the fact that the two main modules of the payload, the telescope and the focal plane, must be located 40 m away leading to the choice of a formation flying option as the reference mission, and of a deployable boom option as an alternative choice. The proposed mission architecture relies on the use of two satellites, of about 700 kg each, operating at L2 for 5 years, flying in formation and offering a capability of more than 20,000 reconfigurations. The two satellites will be launched in a stacked configuration using a Soyuz ST launch vehicle. The NEAT primary science program will encompass an astrometric survey of our 200 closest F-, G- and K-type stellar neighbors, with an average of 50 visits each distributed over the nominal mission duration. The main survey operation will use approximately 70% of the mission lifetime. The remaining 30% of NEAT observing time might be allocated, for example, to improve the characterization of the architecture of selected planetary systems around nearby targets of specific interest (low-mass stars, young stars, etc.) discovered by Gaia, ground-based high-precision radial-velocity surveys, and other programs. With its exquisite, surgical astrometric precision, NEAT holds the promise to provide the first thorough census for Earth-mass planets around stars in the immediate vicinity of our Sun.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Malbet, FabienUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Leger, AlainUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Shao, MichaelUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Goullioud, RenaudUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lagage, Pierre-OlivierUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Brown, Anthony G. A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Cara, ChristopheUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Durand, GillesUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Eiroa, CarlosUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Feautrier, PhilippeUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Jakobsson, BjoernUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hinglais, EmmanuelUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kaltenegger, LisaUNSPECIFIEDorcid.org/0000-0002-0436-1802UNSPECIFIED
Labadie, LucasUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lagrange, Anne-MarieUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Laskar, JacquesUNSPECIFIEDorcid.org/0000-0003-2634-789XUNSPECIFIED
Liseau, ReneUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lunine, JonathanUNSPECIFIEDorcid.org/0000-0003-2279-4131UNSPECIFIED
Maldonado, JesusUNSPECIFIEDorcid.org/0000-0002-2218-5689UNSPECIFIED
Mercier, ManuelUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Mordasini, ChristophUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Queloz, DidierUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Quirrenbach, AndreasUNSPECIFIEDorcid.org/0000-0002-3302-1962UNSPECIFIED
Sozzetti, AlessandroUNSPECIFIEDorcid.org/0000-0002-7504-365XUNSPECIFIED
Traub, WesleyUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Absil, OlivierUNSPECIFIEDorcid.org/0000-0002-4006-6237UNSPECIFIED
Alibert, YannUNSPECIFIEDorcid.org/0000-0002-4644-8818UNSPECIFIED
Andrei, Alexandre HumbertoUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Arenou, FredericUNSPECIFIEDorcid.org/0000-0003-2837-3899UNSPECIFIED
Beichman, CharlesUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Chelli, AlainUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Cockell, Charles S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Duvert, GillesUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Forveille, ThierryUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Garcia, Paulo J. V.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hobbs, DavidUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Krone-Martins, AlbertoUNSPECIFIEDorcid.org/0000-0002-2308-6623UNSPECIFIED
Lammer, HelmutUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Meunier, NadegeUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Minardi, StefanoUNSPECIFIEDorcid.org/0000-0002-7563-103XUNSPECIFIED
de Almeida, Andre MoitinhoUNSPECIFIEDorcid.org/0000-0003-0822-5995UNSPECIFIED
Rambaux, NicolasUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Raymond, SeanUNSPECIFIEDorcid.org/0000-0001-8974-0758UNSPECIFIED
Roettgering, Huub J. A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Sahlmann, JohannesUNSPECIFIEDorcid.org/0000-0001-9525-3673UNSPECIFIED
Schuller, Peter A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Segransan, DamienUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Selsis, FranckUNSPECIFIEDorcid.org/0000-0001-9619-5356UNSPECIFIED
Surdej, JeanUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Villaver, EvaUNSPECIFIEDorcid.org/0000-0003-4936-9418UNSPECIFIED
White, Glenn J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Zinnecker, HansUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-482375
DOI: 10.1007/s10686-011-9246-1
Journal or Publication Title: Exp. Astron.
Volume: 34
Number: 2
Page Range: S. 385 - 414
Date: 2012
Publisher: SPRINGER
Place of Publication: DORDRECHT
ISSN: 0922-6435
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
JITTERMultiple languages
Astronomy & AstrophysicsMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/48237

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