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Adaptive Optics in High-Contrast Imaging

Milli, Julien and Mawet, Dimitri and Mouillet, David and Kasper, Markus and Girard, Julien H. (2016) Adaptive Optics in High-Contrast Imaging. In: Astronomy at High Angular Resolution: A Compendium of Techniques in the Visible and Near-Infrared. Astrophysics and Space Science Library. No.439. Springer , Cham, Switzerland, pp. 17-41. ISBN 978-3-319-39737-5. https://resolver.caltech.edu/CaltechAUTHORS:20170718-110428004

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Abstract

While most confirmed exoplanets were discovered by indirect techniques such as radial velocities or transits, adaptive optics (AO) assisted direct imaging is a very rich and complementary method that can reveal the orbital motion of the planet, the spectrophotometry of its atmosphere but also the architecture and properties of its circumstellar environment. It can unveil possible interactions with a disc, whether a proto-planetary disc in case of on-going planetary accretion, or a debris disc for more evolved, gas-poor systems. From a statistical point of view, it probes a region, in the mass versus semi-major axis discovery space, different from other techniques, as illustrated in Fig. 2.1. Reaching a uniform sampling of such a parameter space is essential to derive the frequency of planets as a function of mass and semi-major axis, and therefore constrain the planet formation mechanisms. For instance, theories of planet formation predict a higher efficiency of giant planet formation close to the snow line, where radial velocity and transit techniques are poorly sensitive. They require additional ingredients such as migrations and orbital instabilities to explain the current view depicted in Fig. 2.1.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1007/978-3-319-39739-9_2DOIArticle
ORCID:
AuthorORCID
Milli, Julien0000-0001-9325-2511
Mawet, Dimitri0000-0002-8895-4735
Girard, Julien H.0000-0001-8627-0404
Additional Information:© 2016 Springer International Publishing Switzerland. First Online: 25 August 2016.
Series Name:Astrophysics and Space Science Library
Issue or Number:439
Record Number:CaltechAUTHORS:20170718-110428004
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20170718-110428004
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:79155
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:18 Jul 2017 18:10
Last Modified:11 Oct 2019 01:41

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