L-band nulling interferometry at the VLTI with Asgard/Hi-5: status and plans
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-...
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| creator | Defrère, Denis Bigioli, Azzurra Dandumont, Colin Garreau, Germain Laugier, Romain Martinod, Marc-Antoine Absil, Olivier Berger, Jean-Philippe Bouzerand, Emilie Courtney-Barrer, Benjamin Emsenhuber, Alexandre Ertel, Steve Gagne, Jonathan Glauser, Adrian M Gross, Simon Ireland, Michael J Kenchington, Harry-Dean Kluska, Jacques Kraus, Stefan Labadie, Lucas Laborde, Viktor Leger, Alain Leisenring, Jarron Loicq, Jérôme Martin, Guillermo Morren, Johan Matter, Alexis Mazzoli, Alexandra Missiaen, Kwinten Salman, Muhammad Ollivier, Marc Raskin, Gert Rousseau, Helene Sanny, Ahmed Verlinden, Simon Vandenbussche, Bart Woillez, Julien |
| description | 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. |
| doi_str_mv | 10.48550/arxiv.2208.08908 |
| format | Article |
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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.</description><identifier>DOI: 10.48550/arxiv.2208.08908</identifier><language>eng</language><subject>Physics - Instrumentation and Methods for Astrophysics</subject><creationdate>2022-08</creationdate><rights>http://creativecommons.org/licenses/by-nc-nd/4.0</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>228,230,776,881</link.rule.ids><linktorsrc>$$Uhttps://arxiv.org/abs/2208.08908$$EView_record_in_Cornell_University$$FView_record_in_$$GCornell_University$$Hfree_for_read</linktorsrc><backlink>$$Uhttps://doi.org/10.48550/arXiv.2208.08908$$DView paper in arXiv$$Hfree_for_read</backlink></links><search><creatorcontrib>Defrère, Denis</creatorcontrib><creatorcontrib>Bigioli, Azzurra</creatorcontrib><creatorcontrib>Dandumont, Colin</creatorcontrib><creatorcontrib>Garreau, Germain</creatorcontrib><creatorcontrib>Laugier, Romain</creatorcontrib><creatorcontrib>Martinod, Marc-Antoine</creatorcontrib><creatorcontrib>Absil, Olivier</creatorcontrib><creatorcontrib>Berger, Jean-Philippe</creatorcontrib><creatorcontrib>Bouzerand, Emilie</creatorcontrib><creatorcontrib>Courtney-Barrer, Benjamin</creatorcontrib><creatorcontrib>Emsenhuber, Alexandre</creatorcontrib><creatorcontrib>Ertel, Steve</creatorcontrib><creatorcontrib>Gagne, Jonathan</creatorcontrib><creatorcontrib>Glauser, Adrian M</creatorcontrib><creatorcontrib>Gross, Simon</creatorcontrib><creatorcontrib>Ireland, Michael J</creatorcontrib><creatorcontrib>Kenchington, Harry-Dean</creatorcontrib><creatorcontrib>Kluska, Jacques</creatorcontrib><creatorcontrib>Kraus, Stefan</creatorcontrib><creatorcontrib>Labadie, Lucas</creatorcontrib><creatorcontrib>Laborde, Viktor</creatorcontrib><creatorcontrib>Leger, Alain</creatorcontrib><creatorcontrib>Leisenring, Jarron</creatorcontrib><creatorcontrib>Loicq, Jérôme</creatorcontrib><creatorcontrib>Martin, Guillermo</creatorcontrib><creatorcontrib>Morren, Johan</creatorcontrib><creatorcontrib>Matter, Alexis</creatorcontrib><creatorcontrib>Mazzoli, Alexandra</creatorcontrib><creatorcontrib>Missiaen, Kwinten</creatorcontrib><creatorcontrib>Salman, Muhammad</creatorcontrib><creatorcontrib>Ollivier, Marc</creatorcontrib><creatorcontrib>Raskin, Gert</creatorcontrib><creatorcontrib>Rousseau, Helene</creatorcontrib><creatorcontrib>Sanny, Ahmed</creatorcontrib><creatorcontrib>Verlinden, Simon</creatorcontrib><creatorcontrib>Vandenbussche, Bart</creatorcontrib><creatorcontrib>Woillez, Julien</creatorcontrib><title>L-band nulling interferometry at the VLTI with Asgard/Hi-5: status and plans</title><description>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.</description><subject>Physics - Instrumentation and Methods for Astrophysics</subject><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>GOX</sourceid><recordid>eNotz7FOwzAUBVAvDKjwAUz4B5w6Tu28sFUV0EqRWCLW6NV-bi2lprJdoH8PLUxXd7hXOow91LJagNZyjuk7fFZKSagkdBJuWd-LLUbH42maQtzxEAslT-njQCWdORZe9sTf-2HDv0LZ82XeYXLzdRD6ieeC5ZT5ZX-cMOY7duNxynT_nzM2vDwPq7Xo3143q2Uv0LQgttZIlJ0BZ8H6GtHX8FudMtoTGFCt7KwEQjJOt027IKsk6cZ4Z6yhupmxx7_bK2c8pnDAdB4vrPHKan4AS-tHPw</recordid><startdate>20220818</startdate><enddate>20220818</enddate><creator>Defrère, Denis</creator><creator>Bigioli, Azzurra</creator><creator>Dandumont, Colin</creator><creator>Garreau, Germain</creator><creator>Laugier, Romain</creator><creator>Martinod, Marc-Antoine</creator><creator>Absil, Olivier</creator><creator>Berger, Jean-Philippe</creator><creator>Bouzerand, Emilie</creator><creator>Courtney-Barrer, Benjamin</creator><creator>Emsenhuber, Alexandre</creator><creator>Ertel, Steve</creator><creator>Gagne, Jonathan</creator><creator>Glauser, Adrian M</creator><creator>Gross, Simon</creator><creator>Ireland, Michael J</creator><creator>Kenchington, Harry-Dean</creator><creator>Kluska, Jacques</creator><creator>Kraus, Stefan</creator><creator>Labadie, Lucas</creator><creator>Laborde, Viktor</creator><creator>Leger, Alain</creator><creator>Leisenring, Jarron</creator><creator>Loicq, Jérôme</creator><creator>Martin, Guillermo</creator><creator>Morren, Johan</creator><creator>Matter, Alexis</creator><creator>Mazzoli, Alexandra</creator><creator>Missiaen, Kwinten</creator><creator>Salman, Muhammad</creator><creator>Ollivier, Marc</creator><creator>Raskin, Gert</creator><creator>Rousseau, Helene</creator><creator>Sanny, Ahmed</creator><creator>Verlinden, Simon</creator><creator>Vandenbussche, Bart</creator><creator>Woillez, Julien</creator><scope>GOX</scope></search><sort><creationdate>20220818</creationdate><title>L-band nulling interferometry at the VLTI with Asgard/Hi-5: status and plans</title><author>Defrère, Denis ; 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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.</abstract><doi>10.48550/arxiv.2208.08908</doi><oa>free_for_read</oa></addata></record> |
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| identifier | DOI: 10.48550/arxiv.2208.08908 |
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| subjects | Physics - Instrumentation and Methods for Astrophysics |
| title | L-band nulling interferometry at the VLTI with Asgard/Hi-5: status and plans |
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