Abstract Using the Keck Planet Imager and Characterizer, we obtained high-resolution (R∼ 35,000) K-band spectra of the four planets orbiting HR 8799. We clearly detected H 2 O and …
We present a large, uniform analysis of young (≈ 10–150 Myr) ultracool dwarfs, based on new high-precision infrared (IR) parallaxes for 68 objects. We find that low-gravity (vl-g) late …
E Nasedkin, P Mollière, S Lacour, M Nowak… - Astronomy & …, 2024 - aanda.org
With four companions at separations from 16 to 71 au, HR 8799 is a unique target for direct imaging, presenting an opportunity for a comparative study of exoplanets with a shared …
We present the results of a near-infrared (NIR) spectroscopic follow-up survey of 182 M4–L7 low-mass stars and brown dwarfs (BDs) from the BANYAN All-Sky Survey (BASS) for …
S Dye, A Lawrence, MA Read, X Fan… - Monthly Notices of …, 2018 - academic.oup.com
This paper defines the UK Infra-Red Telescope (UKIRT) Hemisphere Survey (UHS) and release of the remaining∼ 12 700 deg2 of J-band survey data products. The UHS will …
M Samland, P Mollière, M Bonnefoy, AL Maire… - Astronomy & …, 2017 - aanda.org
Context. 51 Eridani b is an exoplanet around a young (20 Myr) nearby (29.4 pc) F0-type star, which was recently discovered by direct imaging. It is one of the closest direct imaging …
We present L'-band imaging of the PDS 70 planetary system with Keck/NIRC2 using the new infrared pyramid wave front sensor. We detected both PDS 70 b and c in our images, as well …
AC Schneider, JA Munn, FJ Vrba… - The Astronomical …, 2023 - iopscience.iop.org
We present the positions, proper motions, and near-infrared photometry for 966 known objects with spectral types later than M that were observed as part of the the UKIRT …
Context. The system of fourplanets discovered around the intermediate-mass star HR8799 offers a unique opportunity to test planet formation theories at large orbital radii and to probe …