Direct imaging of an ultracool substellar companion to the exoplanet host star HD 4113 A

A Cheetham, D Ségransan, S Peretti, JB Delisle… - Astronomy & …, 2018 - aanda.org
Using high-contrast imaging with the SPHERE instrument at the Very Large Telescope
(VLT), we report the first images of a cold brown dwarf companion to the exoplanet host star …

Spectral and atmospheric characterisation of a new benchmark brown dwarf HD 13724 B

EL Rickman, D Ségransan, J Hagelberg… - Astronomy & …, 2020 - aanda.org
Context. HD 13724 is a nearby solar-type star at 43.48±0.06 pc hosting a long-period low-
mass brown dwarf detected with the CORALIE echelle spectrograph as part of the historical …

A wide planetary-mass companion to a young low-mass brown dwarf in Ophiuchus

C Fontanive, KN Allers, B Pantoja, B Biller… - The Astrophysical …, 2020 - iopscience.iop.org
We present the discovery of a planetary-mass companion to CFHTWIR-Oph 98, a low-mass
brown dwarf member of the young Ophiuchus star-forming region, with a wide 200 au …

Orbital and spectral analysis of the benchmark brown dwarf HD 4747B

S Peretti, D Ségransan, B Lavie, S Desidera… - Astronomy & …, 2019 - aanda.org
Context. The study of high-contrast imaged brown dwarfs and exoplanets depends strongly
on evolutionary models. To estimate the mass of a directly imaged substellar object, its …

The Gaia Ultra-Cool Dwarf Sample – III: seven new multiple systems containing at least one Gaia DR2 ultracool dwarf.

F Marocco, RL Smart, EE Mamajek… - Monthly Notices of …, 2020 - academic.oup.com
We present 10 new ultracool dwarfs in seven wide binary systems discovered using Gaia
second data release data, identified as part of our Gaia Ultra-Cool Dwarf Sample project …

[PDF][PDF] Direct imaging and spectral characterisation of long period exoplanets and brown dwarfs

E Rickman - Ph. D. Thesis, 2020 - access.archive-ouverte.unige.ch
Les planètes géantes et naines brunes à séparation orbitale au-delà de 5 UA nous sont
encore étrangères; très peu de choses sont connues à propos de ces objets. Pourtant, ils …