Open AccessJournal Article
Theia: Faint objects in motion or the new astrometry frontier
Celine Boehm,Alberto Krone-Martins,António Amorim,Guillem Anglada-Escudé,Alexis Brandeker,Frederic Courbin,Torsten A. Ensslin,A. J. Falcão,Katherine Freese,Berry Holl,Lucas Labadie,Alain Léger,Fabien Malbet,Gary A. Mamon,Barbara McArthur,Alcione Mora,Michael Shao,Alessandro Sozzetti,Douglas Spolyar,Eva Villaver,Conrado Albertus,Stefano Bertone,Hervé Bouy,Michael Boylan-Kolchin,Anthony G. A. Brown,Warren R. Brown,Vitor Cardoso,L. Chemin,Riccardo Claudi,Alexandre C. M. Correia,Mariateresa Crosta,Antoine Crouzier,Francis-Yan Cyr-Racine,Mario Damasso,António Alves da Silva,Melvyn B. Davies,Payel Das,Pratika Dayal,Miguel de Val-Borro,Antonaldo Diaferio,Adrienne L. Erickcek,Malcolm Fairbairn,Morgane Fortin,Malcolm Fridlund,Paulo J. V. Garcia,Oleg Y. Gnedin,Ariel Goobar,Paulo Gordo,Renaud Goullioud,Nigel Hambly,Nathan Hara,David Hobbs,E. Hog,Andrew D. Holland,Rodrigo A. Ibata,Carme Jordi,Sergei A. Klioner,Sergei M. Kopeikin,Thomas Lacroix,Jacques Laskar,Christophe Le Poncin-Lafitte,Xavier Luri,Subhabrata Majumdar,Valeri V. Makarov,Richard Massey,Bertrand Mennesson,Daniel Michalik,André Moitinho de Almeida,A. Mourao,Leonidas A. Moustakas,Neil J. Murray,Matthew W. Muterspaugh,Micaela Oertel,Luisa Ostorero,Angeles Perez-Garcia,Imants Platais,Jordi Portell i de Mora,Andreas Quirrenbach,Lisa Randall,Justin I. Read,Eniko Regos,Barnes Rory,Krzysztof A. Rybicki,Pat Scott,Jean Schneider,Jakub Scholtz,Arnaud Siebert,Ismael Tereno,John A. Tomsick,Wesley A. Traub,Monica Valluri,Matthew G. Walker,Nicholas A. Walton,Laura L. Watkins,Glenn J. White,D. W. Evans,Lukasz Wyrzykowski,Rosemary F. G. Wyse +97 more
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TLDR
In the context of the ESA M5 (medium mission) call, Theia as mentioned in this paper proposed a new satellite mission based on relative astrometry and extreme precision to study the motion of very faint objects in the Universe.Abstract:
In the context of the ESA M5 (medium mission) call we proposed a new satellite mission, Theia, based on relative astrometry and extreme precision to study the motion of very faint objects in the Universe. Theia is primarily designed to study the local dark matter properties, the existence of Earth-like exoplanets in our nearest star systems and the physics of compact objects. Furthermore, about 15 $\%$ of the mission time was dedicated to an open observatory for the wider community to propose complementary science cases. With its unique metrology system and "point and stare" strategy, Theia's precision would have reached the sub micro-arcsecond level. This is about 1000 times better than ESA/Gaia's accuracy for the brightest objects and represents a factor 10-30 improvement for the faintest stars (depending on the exact observational program). In the version submitted to ESA, we proposed an optical (350-1000nm) on-axis TMA telescope. Due to ESA Technology readiness level, the camera's focal plane would have been made of CCD detectors but we anticipated an upgrade with CMOS detectors. Photometric measurements would have been performed during slew time and stabilisation phases needed for reaching the required astrometric precision.read more
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References
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Book
Relativistic Celestial Mechanics of the Solar System
TL;DR: Relativity in IAU Resolutions as mentioned in this paper is a special case of General Relativity and Relativistic Reference Frames 5 Post-Newtonian Coordinate Transformations (RNCT).
Book
Exploring the formation and evolution of planetary systems : proceedings of the 299th symposium of the International Astronomical Union, held in Victoria, Canada, June 2-7, 2013
TL;DR: In this article, a detailed study of known exoplanets and exoplanet systems is presented, as well as a model of planetary formation and evolution based on high-resolution imaging.
Proceedings ArticleDOI
Wavefront sensor for the ESA-GAIA mission
TL;DR: TNO developed a Wave Front Sensor (WFS) instrument for the GAIA mission as mentioned in this paper, which can be used to monitor the wave front errors of the two main telescopes mounted on GAIA satellite, which may be corrected by a 5 degree of freedom (DOF) mechanism during operation.
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