L-band nulling interferometry at the VLTI with Asgard/NOTT: status and plans
L-band nulling interferometry at the VLTI with Asgard/NOTT: status and plans
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 objectives of NOTT include characterizing (i) young planetary systems near the snow line, a critical region for giant planet formation, and (ii) nearby main-sequence stars close to the habitable zone, with a focus on detecting exozodiacal dust that could obscure Earth-like planets. In 2023-2024, the final warm optics have been procured and assembled in a new laboratory at KU Leuven. First fringes and null measurements were obtained using a Gallium Lanthanum Sulfide (GLS) photonic chip that was also tested at cryogenic temperatures. In this paper, we present an overall update of the NOTT project with a particular focus on the cold mechanical design, the first results in the laboratory with the final NOTT warm optics, and the ongoing Asgard integration activities. We also report on other ongoing activities such as the characterization of the photonic chip (GLS, LiNbO3, SiO), the development of the exoplanet science case, the design of the dispersion control module, and the progress with the self-calibration data reduction software.
Alain L¨|ger、Jarron Leisenring、Colin Dandumont、H¨|l¨¨ne Rousseau、Olivier Absil、Alexandra Mazzoli、Lucas Labadie、Xavier Haubois、Kwinten Missiaen、Nick Cvetojevic、Andras Peter Joo、Michael J. Ireland、S¨|bastien Morel、Azzurra Bigioli、Stefan Kraus、Emilie Bouzerand、Muhammad Salman、Stephane Lagarde、Bart Vandenbussche、Marc-Antoine Martinod、Johan Morren、Marc Ollivier、Warrick Schofield、Jean-Philippe Berger、Denis Defr¨¨re、Nicolas Schuhler、Gyorgy Medgyesi、Gert Raskin、Ahmed Sanny、Peter ¨￠br¨￠ham、Myriam Bonduelle、Simon Gross、Germain Garreau、Frantz Martinache、Gyorgy Mezo、Adrian M. Glauser、Benjamin Courtney-Barrer、Josh Carter、Guillermo Martin、J¨|r?me Loicq、Adam Taras、Noel James、Romain Laugier、Julien Woillez、Steve Ertel、Gordon Robertson
天文学
Alain L¨|ger,Jarron Leisenring,Colin Dandumont,H¨|l¨¨ne Rousseau,Olivier Absil,Alexandra Mazzoli,Lucas Labadie,Xavier Haubois,Kwinten Missiaen,Nick Cvetojevic,Andras Peter Joo,Michael J. Ireland,S¨|bastien Morel,Azzurra Bigioli,Stefan Kraus,Emilie Bouzerand,Muhammad Salman,Stephane Lagarde,Bart Vandenbussche,Marc-Antoine Martinod,Johan Morren,Marc Ollivier,Warrick Schofield,Jean-Philippe Berger,Denis Defr¨¨re,Nicolas Schuhler,Gyorgy Medgyesi,Gert Raskin,Ahmed Sanny,Peter ¨￠br¨￠ham,Myriam Bonduelle,Simon Gross,Germain Garreau,Frantz Martinache,Gyorgy Mezo,Adrian M. Glauser,Benjamin Courtney-Barrer,Josh Carter,Guillermo Martin,J¨|r?me Loicq,Adam Taras,Noel James,Romain Laugier,Julien Woillez,Steve Ertel,Gordon Robertson.L-band nulling interferometry at the VLTI with Asgard/NOTT: status and plans[EB/OL].(2024-07-11)[2025-06-06].https://arxiv.org/abs/2407.08397.点此复制
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