Articles by Denis Defrère

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Denis Defrère

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First Resolution of Microlensed Images of a Binary-Lens Event

8 November 2024 by Zexuan Wu and others

Solar and Stellar Astrophysics, Astrophysics of Galaxies

Large Interferometer For Exoplanets (LIFE). XIV. Finding terrestrial protoplanets in the galactic neighborhood

17 October 2024 by Lorenzo Cesario and others

Earth and Planetary Astrophysics, Instrumentation and Methods for Astrophysics

Simplified model(s) of the GRAVITY+ adaptive optics system(s) for performance prediction

11 October 2024 by Anthony Berdeu and others at

MPIA

Instrumentation and Methods for Astrophysics

Open loop calibration and closed loop non-perturbative estimation of the lateral errors of an adaptive optics system: examples with GRAVITY+ and CHARA experimental data

9 October 2024 by Anthony Berdeu and others at

ESO

Signal Processing, Instrumentation and Methods for Astrophysics

VLTI Unit Telescope coudé train vibration control upgrade for GRAVITY+

24 July 2024 by Romain Laugier and others

Instrumentation and Methods for Astrophysics

Asgard/NOTT: water vapor and CO_2 atmospheric dispersion compensation system

24 July 2024 by Romain Laugier and others

Instrumentation and Methods for Astrophysics

Generic data reduction for nulling interferometry package: the grip of a single data reduction package on all the nulling interferometers

11 July 2024 by Marc-Antoine Martinod and others

Instrumentation and Methods for Astrophysics

Asgard/NOTT: First lab assembly and experimental results

11 July 2024 by Guillaume Garreau and others

Instrumentation and Methods for Astrophysics

Pushing high angular resolution and high contrast observations on the VLTI from Y to L band with the Asgard instrumental suite: integration status and plans

11 July 2024 by Marc-Antoine Martinod and others

Instrumentation and Methods for Astrophysics

L-band nulling interferometry at the VLTI with Asgard/NOTT: status and plans

11 July 2024 by Denis Defrère and others

Instrumentation and Methods for Astrophysics, Earth and Planetary Astrophysics

Estimation of the lateral mis-registrations of the GRAVITY + adaptive optics system

10 July 2024 by Anthony Berdeu and others at

ESO

Signal Processing, Instrumentation and Methods for Astrophysics

High contrast at short separation with VLTI/GRAVITY: Bringing Gaia companions to light

6 June 2024 by N. Pourré and others

Instrumentation and Methods for Astrophysics, Earth and Planetary Astrophysics

Improving mid-infrared thermal background subtraction with Principal Component Analysis

28 May 2024 by Helene Rousseau and others

Instrumentation and Methods for Astrophysics

Asgard/NOTT: L-band nulling interferometry at the VLTI. II. Warm optical design and injection system

14 February 2024 by Germain Garreau and others

Instrumentation and Methods for Astrophysics

Using the motion of S2 to constrain vector clouds around SgrA*

8 February 2024 by Gravity Collaboration and others

Astrophysics of Galaxies, Instrumentation and Methods for Astrophysics

Upgrading the GRAVITY fringe tracker for GRAVITY+: Tracking the white light fringe in the non-observable Optical Path Length state-space

6 February 2024 by Maciek Nowak and others

Instrumentation and Methods for Astrophysics

A dynamical measure of the black hole mass in a quasar 11 billion years ago

25 January 2024 by Roberto Abuter and others at

KU Leuven

Astrophysics of Galaxies

Using the motion of S2 to constrain scalar clouds around SgrA*

2 September 2023 by Gravity Collaboration and others

Astrophysics of Galaxies, Instrumentation and Methods for Astrophysics

The GRAVITY+ Project: Towards All-sky, Faint-Science, High-Contrast Near-Infrared Interferometry at the VLTI

19 January 2023 by Gravity+ Collaboration and others

Instrumentation and Methods for Astrophysics

High-angular resolution and high-contrast VLTI observations from Y to L band with the Asgard instrumental suite

16 January 2023 by Marc-Antoine Martinod and others

Instrumentation and Methods for Astrophysics

Asgard/NOTT: L-band nulling interferometry at the VLTI I. Simulating the expected high-contrast performance

17 November 2022 by Romain Laugier and others

Instrumentation and Methods for Astrophysics

GRAVITY+ Wide: Towards hundreds of z \sim 2 AGN

23 September 2022 by Antonia Drescher and others

Instrumentation and Methods for Astrophysics

Towards a Better Understanding of OPD Limitations for Higher Sensitivity and Contrast at the VLTI

17 September 2022 by Benjamin Courtney-Barrer and others

Instrumentation and Methods for Astrophysics

GRAVITY faint: reducing noise sources in GRAVITY^+ with a fast metrology attenuation system

12 September 2022 by Florian Widmann and others

Instrumentation and Methods for Astrophysics

First Light for GRAVITY Wide: Large Separation Fringe Tracking for the Very Large Telescope Interferometer

23 August 2022 by Gravity+ Collaboration and others

Instrumentation and Methods for Astrophysics

L-band nulling interferometry at the VLTI with Asgard/Hi-5: status and plans

18 August 2022 by Denis Defrère and others at

KU Leuven

Instrumentation and Methods for Astrophysics

High spectral-resolution interferometry down to 1 micron with Asgard/BIFROST at VLTI: Science drivers and project overview

9 August 2022 by Stefan Kraus and others

Instrumentation and Methods for Astrophysics, Earth and Planetary Astrophysics

Large Interferometer For Exoplanets (LIFE): II. Signal simulation, signal extraction and fundamental exoplanet parameters from single epoch observations

2 March 2022 by Felix Dannert and others

Earth and Planetary Astrophysics, Instrumentation and Methods for Astrophysics

LBT search for companions and sub-structures in the (pre)transitional disk of AB Aurigae

10 February 2022 by Sebastián Jorquera and others

Earth and Planetary Astrophysics

Detection of Near-Infrared Water Ice at the Surface of the (pre)Transitional Disk of AB Aur: Informing Icy Grain Abundance, Composition, and Size

21 January 2022 by S. Betti and others

Earth and Planetary Astrophysics

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Instrumentation and Methods for Astrophysics Earth and Planetary Astrophysics Solar and Stellar Astrophysics Astrophysics of Galaxies General Relativity and Quantum Cosmology Instrumentation and Detectors Space Physics