Abstract
High-precision astrometry at the sub-μas-level opens up a window to study Earthlike planets in the habitable zones of Sunlike stars and to determine their masses. It thus promises to play an important role in exoplanet science in the future. However, such precision can only be acquired from space and requires dedicated instrumentation for a sufficient astrometric calibration. Here, we present a series of concepts designed for handling this task. STARE is a small satellite concept dedicated to finding planets in the very nearest stellar systems, which offers a low-cost option toward the study of habitable planets. The NEAT concept is a set of two formation-flying satellites with the aim to survey the 200 nearest Sunlike stars for Earths in the habitable zone. Finally, THEIA is a proposal for an ESA M-class mission, with a single-unit telescope designed for both dark matter studies and a survey for habitable Earthlike planets among the 50 nearest stars. The concepts illustrate various possible paths and strategies for achieving exquisite astrometric performance and thereby addressing key scientific questions regarding the distribution of habitability and life in the universe.
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Bean JL, Seifahrt A, Hartman H et al (2010) The proposed giant planet orbiting VB 10 does not exist. ApJ 711:L19–L23. doi:10.1088/2041-8205/711/1/L19
Benedict GF, McArthur B, Chappell DW et al (1999) Interferometric astrometry of proxima centauri and Barnard’s star using HUBBLE SPACE TELESCOPE fine guidance sensor 3: detection limits for substellar companions. AJ 118:1086–1100. doi:10.1086/300975, astro-ph/9905318
Benedict GF, McArthur BE, Bean JL et al (2010) The mass of HD 38529c from hubble space telescope astrometry and high-precision radial velocities. AJ 139:1844–1856. doi:10.1088/0004-6256/139/5/1844, 1003.0421
Bodin P, Larsson R, Nilsson F et al (2009) Prisma: an in-orbit test bed for guidance, navigation, and control experiments. J Spacecr Rockets 46(3):615–623
Crouzier A, Malbet F, Henault F et al (2016) A detector interferometric calibration experiment for high precision astrometry. A&A 595:A108. doi:10.1051/0004-6361/201526321, 1609.02477
Delpech M, Berges JC, Karlsson T, Malbet F (2013) Results of PRISMA/FFIORD extended mission and applicability to future formation flying and active debris removal missions. Int J Space Sci Eng 1(4):382–409
Demory BO, Ehrenreich D, Queloz D et al (2015) Hubble space telescope search for the transit of the Earth-mass exoplanet α centauri B b. MNRAS 450:2043–2051. doi:10.1093/mnras/stv673, 1503.07528
Gatewood G, Eichhorn H (1973) An unsuccessful search for a planetary companion of Barnard’s star BD+4 3561. AJ 78:769–776. doi:10.1086/111480
Glauser AM, Amiaux J, Auguères JL, Lilly S, Refregier A (2010) An optical shutter for the Euclid imager. In: Modern technologies in space- and ground-based telescopes and instrumentation. Proceedings of SPIE, vol 7739, p 77393K. doi:10.1117/12.856957
Hatzes AP (2013) The radial velocity detection of Earth-mass planets in the presence of activity noise: the case of α centauri Bb. ApJ 770:133. doi:10.1088/0004-637X/770/2/133, 1305.4960
Lagrange AM, Meunier N, Desort M, Malbet F (2011) Using the sun to estimate Earth-like planets detection capabilities. III. Impact of spots and plages on astrometric detection. A&A 528:L9. doi:10.1051/0004-6361/201016354, 1101.2512
Malbet F, Léger A, Shao M et al (2012) High precision astrometry mission for the detection and characterization of nearby habitable planetary systems with the nearby Earth astrometric telescope (NEAT). Exp Astron 34:385–413. doi:10.1007/s10686-011-9246-1, 1107.3643
Malbet F, Brandeker A, Léger A et al (2014a) Formation flying for very high precision astrometry: NEAT and micro-NEAT mission concepts. Int J Space Sci Eng 2(1):3–15
Malbet F, Crouzier A, Léger A, Shao M, Goullioud R (2014b) NEAT: ultra-precise differential astrometry to characterize planetary systems with Earth-mass exoplanets in the vicinity of our Sun. In: Space telescopes and instrumentation 2014: optical, infrared, and millimeter wave. Proceedings of SPIE, vol 9143, p 91432L. doi:10.1117/12.2056628
McArthur BE, Benedict GF, Barnes R et al (2010) New observational constraints on the υ andromedae system with data from the hubble space telescope and hobby-eberly telescope. ApJ 715:1203–1220. doi:10.1088/0004-637X/715/2/1203
Pravdo SH, Shaklan SB (2009) An ultracool star’s candidate planet. ApJ 700:623–632. doi:10.1088/0004-637X/700/1/623, 0906.0544
Reffert S, Quirrenbach A (2011) Mass constraints on substellar companion candidates from the re-reduced hipparcos intermediate astrometric data: nine confirmed planets and two confirmed brown dwarfs. A&A 527:A140. doi:10.1051/0004-6361/201015861, 1101.2227
Robertson P, Mahadevan S, Endl M, Roy A (2014) Stellar activity masquerading as planets in the habitable zone of the M dwarf Gliese 581. Science 345:440–444. doi:10.1126/science.1253253, 1407.1049
Traub WA, Beichman C, Boden AF et al (2010) Detectability of Earth-like planets in multi-planet systems: preliminary report. In: Gozdziewski K, Niedzielski A, Schneider J (eds) EAS publications series, EAS publications series, vol 42, pp 191–199. doi:10.1051/eas/1042022, 0904.0822
van de Kamp P (1963) Astrometric study of Barnard’s star from plates taken with the 24-inch Sproul refractor. AJ 68:515–521. doi:10.1086/109001
Vosteen LLA, Draaisma F, van Werkhoven WP et al (2009) Wavefront sensor for the esa-gaia mission. doi:10.1117/12.825240, http://dx.doi.org/10.1117/12.825240
Acknowledgements
The authors thank everyone involved in the various astrometric concepts discussed in this chapter for their great efforts. MJ acknowledges support from the Knut and Alice Wallenberg Foundation.
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Janson, M., Brandeker, A., Boehm, C., Martins, A.K. (2017). Future Astrometric Space Missions for Exoplanet Science. In: Deeg, H., Belmonte, J. (eds) Handbook of Exoplanets . Springer, Cham. https://doi.org/10.1007/978-3-319-30648-3_87-1
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DOI: https://doi.org/10.1007/978-3-319-30648-3_87-1
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