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

Denis Defrere; Azzurra Bigioli; Colin Dandumont; Germain Garreau; Romain Laugier; Marc-Antoine Martinod; Olivier Absil; Jean-Philippe Berger; Emilie Bouzerand; Benjamin Courtney-Barrer; Alexandre Emsenhuber; Steve Ertel; Jonathan Gagne; Adrian M. Glauser; Simon Gross; Michael J. Ireland; Harry-Dean Kenchington; Jacques Kluska; Stefan Kraus; Lucas Labadie; Viktor Laborde; Alain Léger; Jarron Leisenring; Jérôme Loicq; Guillermo Martin; Johan Morren; Alexis Matter; Alexandra Mazzoli; Kwinten Missiaen; Muhammad Salman; Marc Ollivier; Gert Raskin; Hélène Rousseau; Ahmed Sanny; Simon Verlinden; Bart Vandenbussche; Julien Woillez

doi:10.1117/12.2627953

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

Denis Defrere^*, Azzurra Bigioli, Colin Dandumont, Germain Garreau, Romain Laugier, Marc-Antoine Martinod, Olivier Absil, Jean-Philippe Berger, Emilie Bouzerand, Benjamin Courtney-Barrer, Alexandre Emsenhuber, Steve Ertel, Jonathan Gagne, Adrian M. Glauser, Simon Gross, Michael J. Ireland, Harry-Dean Kenchington, Jacques Kluska, Stefan Kraus, Lucas LabadieViktor Laborde, Alain Léger, Jarron Leisenring, Jérôme Loicq, Guillermo Martin, Johan Morren, Alexis Matter, Alexandra Mazzoli, Kwinten Missiaen, Muhammad Salman, Marc Ollivier, Gert Raskin, Hélène Rousseau, Ahmed Sanny, Simon Verlinden, Bart Vandenbussche, Julien Woillez

^*Corresponding author for this work

School of Mathematical and Physical Sciences

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

Abstract

Hi-5 is the L'-band (3.5-4.0 mu 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 and high-sensitivity imaging within the diffraction limit of a single UT/AT telescope. It is designed as a double-Bracewell nulling instrument producing spectrally-dispersed (R=20, 400, or 2000) complementary nulling outputs and simultaneous photometric outputs for self-calibration purposes. In this paper, we present an update of the project with a particular focus on the overall architecture, opto-mechanical design of the warm and cold optics, injection system, and development of the photonic beam combiner. The key science projects are to survey (i) nearby young planetary systems near the snow line, where most giant planets are expected to be formed, and (ii) nearby main sequence stars near the habitable zone where exozodiacal dust that may hinder the detection of Earth-like planets. We present an update of the expected instrumental performance based on full end-to-end simulations using the new GRAVITY+ specifications of the VLTI and the latest planet formation models.

Original language	English
Title of host publication	Optical and Infrared Interferometry and Imaging VIII
Editors	Antoine Mérand, Stephanie Sallum, Joel Sanchez-Bermudez
Place of Publication	Washington USA
Publisher	SPIE
Pages	1-16
Number of pages	16
ISBN (Electronic)	9781510653481
ISBN (Print)	9781510653474
DOIs	https://doi.org/10.1117/12.2627953
Publication status	Published - 2022
Event	Conference on Optical and Infrared Interferometry and Imaging VIII Part of SPIE Astronomical Telescopes and Instrumentation Conference - Montreal, Canada Duration: 17 Jul 2022 → 22 Jul 2022

Publication series

Name	Proceedings of SPIE
Publisher	SPIE
Volume	12183
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	Conference on Optical and Infrared Interferometry and Imaging VIII Part of SPIE Astronomical Telescopes and Instrumentation Conference
Country/Territory	Canada
City	Montreal
Period	17/07/22 → 22/07/22

Keywords

Nulling interferometry
VLTI
exoplanets
exozodiacal disks
high contrast imaging
high angular resolution
optical fibers
long baseline interferometry

Access to Document

10.1117/12.2627953

Cite this

Defrere, D., Bigioli, A., Dandumont, C., Garreau, G., Laugier, R., Martinod, M.-A., Absil, O., Berger, J.-P., Bouzerand, E., Courtney-Barrer, B., Emsenhuber, A., Ertel, S., Gagne, J., Glauser, A. M., Gross, S., Ireland, M. J., Kenchington, H.-D., Kluska, J., Kraus, S., ... Woillez, J. (2022). L-band nulling interferometry at the VLTI with Asgard/Hi-5: status and plans. In A. Mérand, S. Sallum, & J. Sanchez-Bermudez (Eds.), Optical and Infrared Interferometry and Imaging VIII (pp. 1-16). Article 121830H (Proceedings of SPIE; Vol. 12183). SPIE. https://doi.org/10.1117/12.2627953

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

abstract = "Hi-5 is the L'-band (3.5-4.0 mu 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 and high-sensitivity imaging within the diffraction limit of a single UT/AT telescope. It is designed as a double-Bracewell nulling instrument producing spectrally-dispersed (R=20, 400, or 2000) complementary nulling outputs and simultaneous photometric outputs for self-calibration purposes. In this paper, we present an update of the project with a particular focus on the overall architecture, opto-mechanical design of the warm and cold optics, injection system, and development of the photonic beam combiner. The key science projects are to survey (i) nearby young planetary systems near the snow line, where most giant planets are expected to be formed, and (ii) nearby main sequence stars near the habitable zone where exozodiacal dust that may hinder the detection of Earth-like planets. We present an update of the expected instrumental performance based on full end-to-end simulations using the new GRAVITY+ specifications of the VLTI and the latest planet formation models.",

keywords = "Nulling interferometry, VLTI, exoplanets, exozodiacal disks, high contrast imaging, high angular resolution, optical fibers, long baseline interferometry",

author = "Denis Defrere and Azzurra Bigioli and Colin Dandumont and Germain Garreau and Romain Laugier and Marc-Antoine Martinod and Olivier Absil and Jean-Philippe Berger and Emilie Bouzerand and Benjamin Courtney-Barrer and Alexandre Emsenhuber and Steve Ertel and Jonathan Gagne and Glauser, {Adrian M.} and Simon Gross and Ireland, {Michael J.} and Harry-Dean Kenchington and Jacques Kluska and Stefan Kraus and Lucas Labadie and Viktor Laborde and Alain L{\'e}ger and Jarron Leisenring and J{\'e}r{\^o}me Loicq and Guillermo Martin and Johan Morren and Alexis Matter and Alexandra Mazzoli and Kwinten Missiaen and Muhammad Salman and Marc Ollivier and Gert Raskin and H{\'e}l{\`e}ne Rousseau and Ahmed Sanny and Simon Verlinden and Bart Vandenbussche and Julien Woillez",

year = "2022",

doi = "10.1117/12.2627953",

language = "English",

isbn = "9781510653474",

series = "Proceedings of SPIE",

publisher = "SPIE",

pages = "1--16",

editor = "Antoine M{\'e}rand and Stephanie Sallum and Joel Sanchez-Bermudez",

booktitle = "Optical and Infrared Interferometry and Imaging VIII",

address = "United States",

note = "Conference on Optical and Infrared Interferometry and Imaging VIII Part of SPIE Astronomical Telescopes and Instrumentation Conference ; Conference date: 17-07-2022 Through 22-07-2022",

}

Defrere, D, Bigioli, A, Dandumont, C, Garreau, G, Laugier, R, Martinod, M-A, Absil, O, Berger, J-P, Bouzerand, E, Courtney-Barrer, B, Emsenhuber, A, Ertel, S, Gagne, J, Glauser, AM, Gross, S, Ireland, MJ, Kenchington, H-D, Kluska, J, Kraus, S, Labadie, L, Laborde, V, Léger, A, Leisenring, J, Loicq, J, Martin, G, Morren, J, Matter, A, Mazzoli, A, Missiaen, K, Salman, M, Ollivier, M, Raskin, G, Rousseau, H, Sanny, A, Verlinden, S, Vandenbussche, B & Woillez, J 2022, L-band nulling interferometry at the VLTI with Asgard/Hi-5: status and plans. in A Mérand, S Sallum & J Sanchez-Bermudez (eds), Optical and Infrared Interferometry and Imaging VIII., 121830H, Proceedings of SPIE, vol. 12183, SPIE, Washington USA, pp. 1-16, Conference on Optical and Infrared Interferometry and Imaging VIII Part of SPIE Astronomical Telescopes and Instrumentation Conference, Montreal, Canada, 17/07/22. https://doi.org/10.1117/12.2627953

L-band nulling interferometry at the VLTI with Asgard/Hi-5: status and plans. / Defrere, Denis; Bigioli, Azzurra; Dandumont, Colin et al.
Optical and Infrared Interferometry and Imaging VIII. ed. / Antoine Mérand; Stephanie Sallum; Joel Sanchez-Bermudez. Washington USA: SPIE, 2022. p. 1-16 121830H (Proceedings of SPIE; Vol. 12183).

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

TY - GEN

T1 - L-band nulling interferometry at the VLTI with Asgard/Hi-5

T2 - Conference on Optical and Infrared Interferometry and Imaging VIII Part of SPIE Astronomical Telescopes and Instrumentation Conference

AU - Defrere, Denis

AU - Bigioli, Azzurra

AU - Dandumont, Colin

AU - Garreau, Germain

AU - Laugier, Romain

AU - Martinod, Marc-Antoine

AU - Absil, Olivier

AU - Berger, Jean-Philippe

AU - Bouzerand, Emilie

AU - Courtney-Barrer, Benjamin

AU - Emsenhuber, Alexandre

AU - Ertel, Steve

AU - Gagne, Jonathan

AU - Glauser, Adrian M.

AU - Gross, Simon

AU - Ireland, Michael J.

AU - Kenchington, Harry-Dean

AU - Kluska, Jacques

AU - Kraus, Stefan

AU - Labadie, Lucas

AU - Laborde, Viktor

AU - Léger, Alain

AU - Leisenring, Jarron

AU - Loicq, Jérôme

AU - Martin, Guillermo

AU - Morren, Johan

AU - Matter, Alexis

AU - Mazzoli, Alexandra

AU - Missiaen, Kwinten

AU - Salman, Muhammad

AU - Ollivier, Marc

AU - Raskin, Gert

AU - Rousseau, Hélène

AU - Sanny, Ahmed

AU - Verlinden, Simon

AU - Vandenbussche, Bart

AU - Woillez, Julien

PY - 2022

Y1 - 2022

N2 - Hi-5 is the L'-band (3.5-4.0 mu 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 and high-sensitivity imaging within the diffraction limit of a single UT/AT telescope. It is designed as a double-Bracewell nulling instrument producing spectrally-dispersed (R=20, 400, or 2000) complementary nulling outputs and simultaneous photometric outputs for self-calibration purposes. In this paper, we present an update of the project with a particular focus on the overall architecture, opto-mechanical design of the warm and cold optics, injection system, and development of the photonic beam combiner. The key science projects are to survey (i) nearby young planetary systems near the snow line, where most giant planets are expected to be formed, and (ii) nearby main sequence stars near the habitable zone where exozodiacal dust that may hinder the detection of Earth-like planets. We present an update of the expected instrumental performance based on full end-to-end simulations using the new GRAVITY+ specifications of the VLTI and the latest planet formation models.

AB - Hi-5 is the L'-band (3.5-4.0 mu 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 and high-sensitivity imaging within the diffraction limit of a single UT/AT telescope. It is designed as a double-Bracewell nulling instrument producing spectrally-dispersed (R=20, 400, or 2000) complementary nulling outputs and simultaneous photometric outputs for self-calibration purposes. In this paper, we present an update of the project with a particular focus on the overall architecture, opto-mechanical design of the warm and cold optics, injection system, and development of the photonic beam combiner. The key science projects are to survey (i) nearby young planetary systems near the snow line, where most giant planets are expected to be formed, and (ii) nearby main sequence stars near the habitable zone where exozodiacal dust that may hinder the detection of Earth-like planets. We present an update of the expected instrumental performance based on full end-to-end simulations using the new GRAVITY+ specifications of the VLTI and the latest planet formation models.

KW - Nulling interferometry

KW - VLTI

KW - exoplanets

KW - exozodiacal disks

KW - high contrast imaging

KW - high angular resolution

KW - optical fibers

KW - long baseline interferometry

U2 - 10.1117/12.2627953

DO - 10.1117/12.2627953

M3 - Conference proceeding contribution

SN - 9781510653474

T3 - Proceedings of SPIE

SP - 1

EP - 16

BT - Optical and Infrared Interferometry and Imaging VIII

A2 - Mérand, Antoine

A2 - Sallum, Stephanie

A2 - Sanchez-Bermudez, Joel

PB - SPIE

CY - Washington USA

Y2 - 17 July 2022 through 22 July 2022

ER -

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

Abstract

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Conference

Keywords

Access to Document

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