Astrometric detection of exoplanets from the ground
arXiv:1309.0329 · doi:10.1117/12.2023929
Abstract
Astrometry is a powerful technique to study the populations of extrasolar planets around nearby stars. It gives access to a unique parameter space and is therefore required for obtaining a comprehensive picture of the properties, abundances, and architectures of exoplanetary systems. In this review, we discuss the scientific potential, present the available techniques and instruments, and highlight a few results of astrometric planet searches, with an emphasis on observations from the ground. In particular, we discuss astrometric observations with the Very Large Telescope (VLT) Interferometer and a programme employing optical imaging with a VLT camera, both aimed at the astrometric detection of exoplanets. Finally, we set these efforts into the context of Gaia, ESA's astrometry mission scheduled for launch in 2013, and present an outlook on the future of astrometric exoplanet detection from the ground.
9 pages, 3 figures. Invited contribution to the SPIE conference "Techniques and Instrumentation for Detection of Exoplanets VI" held in San Diego, CA, August 25-29, 2013
References in corpus (10)
- Planetary Candidates Observed by Kepler, III: Analysis of the First 16 Months of Data
- One or more bound planets per Milky Way star from microlensing observations
- Science performance of Gaia, ESA's space-astrometry mission
- Taking the Measure of the Universe: Precision Astrometry with SIM PlanetQuest
- Precision Astrometry with Adaptive Optics
- High precision astrometry with a diffractive pupil telescope
- ASTRA: ASTrometry and phase-Referencing Astronomy on the Keck interferometer
- HD 5388 b is a 69 M_Jup companion instead of a planet
- Detectability of planets in wide binaries by ground-based relative astrometry with AO
- Simulating a dual beam combiner at SUSI for narrow-angle astrometry