activity
20222026
most citedL-band nulling interferometry at the VLTI with Asgard/Hi-5: status and plans

8 citations · 12 across the 7 of their papers we have counts for

collaborators

9 papers

astro-ph.IM2026

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

Marc-Antoine Martinod, Michael J. Ireland, Denis Defrère +39

ESO's VLTI has a history of record-breaking discoveries in astrophysics using high-angular resolution instrumentation. Its latest visitor instrument, the Asgard instrumental suite,…

astro-ph.IM2026

The optical high-resolution spectral archive of the HERMES spectrograph mounted on the 1.2m Mercator telescope

Hans Van Winckel, Saskia Prins, Gert Raskin +13

Context. The HERMES spectrograph is a high-resolution, fibre-fed optical spectrograph of the 1.2m Mercator telescope operated from the Roque de los Muchachos observatory in Spain.…

astro-ph.IM2026

Asgard/NOTT: Status of laboratory nulling performance

T. Mattheussen, R. Laugier, D. Defrère +26

Nulling interferometry enables the direct detection of faint companions and circumstellar structures at angular separations unresolvable by classical, diffraction-limited imagers,…

astro-ph.IM2026

Performance Analysis of the Asgard/NOTT Nulling Interferometer: Optimizing Observing Modes for High-contrast Detection

J. P. Scott, S. Ertel, T. A. Stuber +21

We evaluate the performance of three beam-combination schemes, single-Bracewell, asymmetric dual-Bracewell, and symmetric dual-Bracewell, for the forthcoming Asgard/NOTT nulling in…

astro-ph.IM2026

Asgard/NOTT: Cryogenic characterization of the mid-infrared chip

G. Garreau, D. Defrère, R. Laugier +25

NOTT is part of the new visitor instrument suite Asgard for the Very Large Telescope Interferometer (VLTI), and the first long-baseline nulling interferometer that will be operatio…

astro-ph.IM2024★ 1 cited

Asgard/NOTT: First lab assembly and experimental results

G. Garreau, A. Bigioli, R. Laugier +17

Asgard/NOTT is an ERC-funded project hosted at KU Leuven and is part of a new visitor instrumental suite, called Asgard, under preparation for the Very Large Telescope Interferomet…

astro-ph.IM2024★ 2 cited

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

Marc-Antoine Martinod, Denis Defrère, Michael J. Ireland +35

ESO's Very Large Telescope Interferometer has a history of record-breaking discoveries in astrophysics and significant advances in instrumentation. The next leap forward is its new…

astro-ph.IM2024★ 1 cited

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

Denis Defrère, Romain Laugier, Marc-Antoine Martinod +43

NOTT (formerly Hi-5) is the L'-band (3.5-4.0~microns) nulling interferometer of Asgard, an instrument suite in preparation for the VLTI visitor focus. The primary scientific object…

astro-ph.IM2022★ 8 cited

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

Denis Defrère, Azzurra Bigioli, Colin Dandumont +34

Hi-5 is the L'-band (3.5-4.0 m) high-contrast imager of Asgard, an instrument suite in preparation for the visitor focus of the VLTI. The system is optimized for high-contrast a…