Asgard/NOTT: First lab assembly and experimental results

Fuente: arXiv
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Hauptverfasser: Garreau, G., Bigioli, A., Laugier, R., La Torre, B., Martinod, M-A., Missiaen, K., Morren, J., Raskin, G., Salman, M., Gross, S., Ireland, M., Joó, A. P., Labadie, L., Madden, S., Mazzoli, A., Medgyesi, G., Sanny, A., Taras, A., Vandenbussche, B., Defrère, D.
Format: Preprint
Veröffentlicht: 2024
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author Garreau, G.
Bigioli, A.
Laugier, R.
La Torre, B.
Martinod, M-A.
Missiaen, K.
Morren, J.
Raskin, G.
Salman, M.
Gross, S.
Ireland, M.
Joó, A. P.
Labadie, L.
Madden, S.
Mazzoli, A.
Medgyesi, G.
Sanny, A.
Taras, A.
Vandenbussche, B.
Defrère, D.
author_facet Garreau, G.
Bigioli, A.
Laugier, R.
La Torre, B.
Martinod, M-A.
Missiaen, K.
Morren, J.
Raskin, G.
Salman, M.
Gross, S.
Ireland, M.
Joó, A. P.
Labadie, L.
Madden, S.
Mazzoli, A.
Medgyesi, G.
Sanny, A.
Taras, A.
Vandenbussche, B.
Defrère, D.
contents 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 Interferometer (VLTI). Leveraging nulling capabilities and the long VLTI baselines, it is optimized for high-contrast imaging of the snow line region around young nearby main-sequence stars. This will enable the characterization of the atmosphere of young giant exoplanets and warm/hot exozodiacal dust with spectroscopy in the L'-band (3.5-4.0$μ$m). In this work, we present the first lab assembly of the instrument done at KU Leuven and the technical solutions to tackle the challenge of performing nulling in the mid-infrared despite the thermal background. The opto-mechanical design of the warm optics and the injection system for the photonic chip are described. The alignment procedure used to assemble the system is also presented. Finally, the first experimental results, including fringes and null measurements, are given and confirm the adequacy of the bench to test and optimize the Asgard/NOTT instrument.
format Preprint
id arxiv_https___arxiv_org_abs_2407_08557
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Asgard/NOTT: First lab assembly and experimental results
Garreau, G.
Bigioli, A.
Laugier, R.
La Torre, B.
Martinod, M-A.
Missiaen, K.
Morren, J.
Raskin, G.
Salman, M.
Gross, S.
Ireland, M.
Joó, A. P.
Labadie, L.
Madden, S.
Mazzoli, A.
Medgyesi, G.
Sanny, A.
Taras, A.
Vandenbussche, B.
Defrère, D.
Instrumentation and Methods for Astrophysics
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 Interferometer (VLTI). Leveraging nulling capabilities and the long VLTI baselines, it is optimized for high-contrast imaging of the snow line region around young nearby main-sequence stars. This will enable the characterization of the atmosphere of young giant exoplanets and warm/hot exozodiacal dust with spectroscopy in the L'-band (3.5-4.0$μ$m). In this work, we present the first lab assembly of the instrument done at KU Leuven and the technical solutions to tackle the challenge of performing nulling in the mid-infrared despite the thermal background. The opto-mechanical design of the warm optics and the injection system for the photonic chip are described. The alignment procedure used to assemble the system is also presented. Finally, the first experimental results, including fringes and null measurements, are given and confirm the adequacy of the bench to test and optimize the Asgard/NOTT instrument.
title Asgard/NOTT: First lab assembly and experimental results
topic Instrumentation and Methods for Astrophysics
url https://arxiv.org/abs/2407.08557