Adaptive optics for astronomy

R Davies, M Kasper - Annual Review of Astronomy and …, 2012 - annualreviews.org
Adaptive optics is a prime example of how progress in observational astronomy can be
driven by technological developments. At many observatories it is now considered to be part …

Giant planet and brown dwarf formation

G Chabrier, A Johansen, M Janson… - arXiv preprint arXiv …, 2014 - arxiv.org
Understanding the dominant brown dwarf and giant planet formation processes, and finding
out whether these processes rely on completely different mechanisms or share common …

Imaging extrasolar giant planets

BP Bowler - Publications of the Astronomical Society of the …, 2016 - iopscience.iop.org
High-contrast adaptive optics (AO) imaging is a powerful technique to probe the
architectures of planetary systems from the outside-in and survey the atmospheres of self …

Angular differential imaging: a powerful high-contrast imaging technique

C Marois, D Lafreniere, R Doyon… - The Astrophysical …, 2006 - iopscience.iop.org
Angular differential imaging is a high-contrast imaging technique that reduces quasistatic
speckle noise and facilitates the detection of nearby companions. A sequence of images is …

PYNPOINT: an image processing package for finding exoplanets

A Amara, SP Quanz - Monthly Notices of the Royal Astronomical …, 2012 - academic.oup.com
We present the scientific performance results of pynpoint, our Python-based software
package that uses principal component analysis to detect and estimate the flux of …

A new algorithm for point-spread function subtraction in high-contrast imaging: a demonstration with angular differential imaging

D Lafreniere, C Marois, R Doyon… - The Astrophysical …, 2007 - iopscience.iop.org
Direct imaging of exoplanets is limited by bright quasi-static speckles in the point-spread
function (PSF) of the central star. This limitation can be reduced by subtraction of reference …

Carmenes input catalogue of m dwarfs-i. low-resolution spectroscopy with cafos

FJ Alonso-Floriano, JC Morales, JA Caballero… - Astronomy & …, 2015 - aanda.org
Context. CARMENES is a stabilised, high-resolution, double-channel spectrograph at the
3.5 m Calar Alto telescope. It is optimally designed for radial-velocity surveys of M dwarfs …

The SPHERE infrared survey for exoplanets (SHINE)-II. Observations, data reduction and analysis, detection performances, and initial results

M Langlois, R Gratton, AM Lagrange… - Astronomy & …, 2021 - aanda.org
Context. In recent decades, direct imaging has confirmed the existence of substellar
companions (exoplanets or brown dwarfs) on wide orbits (> 10 au) around their host stars. In …

A combined Subaru/VLT/MMT 1–5 μm study of planets orbiting HR 8799: Implications for atmospheric properties, masses, and formation

T Currie, A Burrows, Y Itoh, S Matsumura… - The Astrophysical …, 2011 - iopscience.iop.org
ABSTRACT We present new 1–1.25 μm (z and J band) Subaru/IRCS and 2 μm (K band)
VLT/NaCo data for HR 8799 and a re-reduction of the 3–5 μm MMT/Clio data first presented …

The Gemini/NICI Planet-Finding Campaign: The frequency of planets around young moving group stars

BA Biller, MC Liu, Z Wahhaj, EL Nielsen… - The Astrophysical …, 2013 - iopscience.iop.org
We report results of a direct imaging survey for giant planets around 80 members of the β
Pic, TW Hya, Tucana-Horologium, AB Dor, and Hercules-Lyra moving groups, observed as …