activity
20152024
most citedDirect imaging of an ultracool substellar companion to the exoplanet host star HD 4113A

62 citations · 175 across the 10 of their papers we have counts for

collaborators

10 papers

astro-ph.IM2024

Characterizing the performance of two C-RED ONE cameras for implementation in RISTRETTO and SAXO+ projects

Muskan Shinde, Jana Anouk Baron, Nicolas Blind +4

In the near-infrared wavelength regime, atmospheric turbulence fluctuates at a scale of a few milliseconds, and its precise control requires the use of extreme adaptive optics (XAO…

astro-ph.EP2024★ 2 cited

RISTRETTO: reflected-light exoplanet spectroscopy at the diffraction limit of the VLT

Christophe Lovis, Nicolas Blind, Bruno Chazelas +28

RISTRETTO is a visible high-resolution spectrograph fed by an extreme adaptive optics (AO) system, to be proposed as a visitor instrument on ESO VLT. The main science goal of RISTR…

astro-ph.EP2022★ 16 cited

RISTRETTO: high-resolution spectroscopy at the diffraction limit of the VLT

Christophe Lovis, Nicolas Blind, Bruno Chazelas +14

RISTRETTO is a visible high-resolution spectrograph fed by an extreme adaptive optics (XAO) system, to be proposed as a visitor instrument on ESO VLT. The main science goal of RIST…

astro-ph.IM2022

RISTRETTO: coronagraph and AO designs enabling High Dispersion Coronagraphy at 2 lambda/D

N. Blind, B. Chazelas, J. Kühn +13

RISTRETTO is the evolution of the original idea of coupling the VLT instruments SPHERE and ESPRESSO, aiming at High Dispersion Coronagraphy. RISTRETTO is a visitor instrument that…

astro-ph.IM2020

KalAO the swift adaptive optics imager on 1.2m Euler Swiss telescope in La Silla, Chile

Janis Hagelberg, Nathanaël Restori, François Wildi +6

KalAO is a natural guide star adaptive optics (AO) imager to be installed on the second Nasmyth focus of the 1.2m Euler Swiss telescope in La Silla, Chile. The initial design of th…

astro-ph.IM2020

RISTRETTO: a pathfinder instrument for exoplanet atmosphere characterization

Bruno Chazelas, Christophe Lovis, Nicolas Blind +8

We introduce the RISTRETTO instrument for ESO VLT, an evolution from the original idea of connecting the SPHERE high-contrast facility to the ESPRESSO spectrograph (Lovis et al 201…

astro-ph.EP2017★ 62 cited

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

A. Cheetham, D. Ségransan, S. Peretti +7

Using high-contrast imaging with the SPHERE instrument at the VLT, we report the first images of a cold brown dwarf companion to the exoplanet host star HD4113A. The brown dwarf HD…

astro-ph.IM2017★ 20 cited

An H-band Vector Vortex Coronagraph for the Subaru Coronagraphic Extreme-Adaptive Optics System

Jonas Kühn, Eugene Serabyn, Julien Lozi +11

The vector vortex is a coronagraphic imaging mode of the recently commissioned Subaru Coronagraphic Extreme-Adaptive Optics (SCExAO) platform on the 8-m Subaru Telescope. This mult…

astro-ph.IM2015★ 25 cited

The Geneva Reduction and Analysis Pipeline for High-contrast Imaging of planetary Companions

J. Hagelberg, D. Ségransan, S. Udry +1

We present GRAPHIC, a new angular differential imaging (ADI) reduction pipeline where all geometric image operations are based on Fourier transforms. To achieve this goal the entir…

astro-ph.IM2015★ 50 cited

Artificial incoherent speckles enable precision astrometry and photometry in high-contrast imaging

Nemanja Jovanovic, Olivier Guyon, Frantz Martinache +3

State-of-the-art coronagraphs employed on extreme adaptive optics enabled instruments, are constantly improving the contrast detection limit for companions at ever closer separatio…