Mr. Colin Dandumont Profile

Colin Dandumont

PhD Student at Ctr Spatial de Liege

SPIE Involvement:

Author

Area of Expertise:

Nulling Interferometry , Satellites , Space Optics , Exoplanets

Websites:

Company Website

Publications (16)

Proceedings Article | 28 August 2024 Presentation + Paper

Presentation + Paper

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 Ireland, Stefan Kraus, Frantz Martinache, Peter Tuthill, Fatmé Allouche, Emilie Bouzerand, Julia Bryant, Josh Carter, Sorabh Chhabra, Benjamin Courtney-Barrer, Fred Crous, Nick Cvetojevic, Colin Dandumont, Steve Ertel, Tyler Gardner, Germain Garreau, Adrian Glauser, Xavier Haubois, Lucas Labadie, Stéphane Lagarde, Daniel Lancaster, Romain Laugier, Alexandra Mazzoli, Anthony Meilland, Kwinten Missiaen, Sebastien Morel, Daniel Mortimer, Barnaby Norris, Jyotirmay Paul, Gert Raskin, Sylvie Robbe-Dubois, J. Gordon Robertson, Ahmed Sanny, Nicolas Schuhler, Owain Snaith, Adam Taras

Proceedings Volume 13095, 130950D (2024) https://doi.org/10.1117/12.3016296

KEYWORDS: Equipment, Spectrographs, Sensors, Lawrencium, L band, Calibration, Nulling interferometry, Astronomical interferometers, Spatial resolution, Control software

Read Abstract +

Proceedings Article | 28 August 2024 Poster + Paper

Poster + Paper

Single spacecraft nulling interferometer for exoplanets: preliminary concepts

Jérôme Loicq, Denis Defrère, Romain Laugier, Rudolf Saathof, Jasper Bouwmeester, Pierre Piron, Sandra Potin, Colin Dandumont, Vincent Moreau, Benoit Borguet, Pascal Hallibert, David Alaluf, Isabel Escudero, Theresa Lueftinger, Bertrand Mennesson, William Danchi

Proceedings Volume 13095, 1309536 (2024) https://doi.org/10.1117/12.3018998

KEYWORDS: Exoplanets, Nulling interferometry, Telescopes, Astronomical interferometers, Planets, Space operations, Interferometers, Stars, Stellar interferometry, Spectrographs

Read Abstract +

One of the most ambitious goals of modern astronomy is to uncover signs of extraterrestrial biological activity, primarily achieved through spectroscopic analysis of light emitted by exoplanets to identify specific atmospheric molecules. Most exoplanets are indirectly identified through techniques like transit or Doppler shift of the host star's flux. Long-term surveys have yielded statistical insights into the occurrence rates of different planet types based on factors such as radius/mass, orbital period, and the spectral type of the host star. Initial estimates of terrestrial planets within the habitable zone have also emerged. However, the difficulty of detecting light from these exoplanets leaves much unknown about their nature, formation, and evolution. As the number of rocky exoplanets around nearby stars rises, questions about their atmospheric composition, evolutionary trajectory, and habitability increase. Direct measurement of an exoplanet's atmospheric composition through its spectral signature in the infrared can provide answers. Measuring the infrared spectrum of these planets poses significant challenges due to the star/planet contrast and very small angular separation from their host stars. Previous research showed that space-based telescopes are mandatory, and unless large primary mirrors (>30m in diameter) can be sent into space, interferometric techniques become essential. Combining light from distant telescopes with interferometric techniques allows access to information at minimal angular separation, operating within the diffraction limit of individual telescopes. Successful demonstrations of on-ground nulling interferometry open a new era for such space-based missions. They are vital to sidestep and tackle these scientific questions. We recently initiated a new study with the European Space Agency to explore the design parameters and the performances related to an interferometric concept based on a single spacecraft and sparse multiple sub-apertures. Launch constraints are linked to the use of an Ariane 6 launch vehicle. Our parametric study covers a range of 1-4m for the diameter of the telescope and a 10-60m baseline. The most promising concept working in the infrared range (3-20μm) will be highlighted. This study is conducted by TUDelft in cooperation with KULeuven, CSL/ULiège, and Amos with the support of the European Space Agency.

Proceedings Article | 28 August 2024 Presentation + Paper

Presentation + Paper

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

Denis Defrère, Romain Laugier, Marc-Antoine Martinod, Germain Garreau, Kwinten Missiaen, Muhammad Salman, Gert Raskin, Colin Dandumont, Steve Ertel, Michael Ireland, Stefan Kraus, Lucas Labadie, Alexandra Mazzolli, Gyorgy Medgyesi, Ahmed Sanny, Olivier Absil, Peter Ábráham, Jean-Philippe Berger, Myriam Bonduelle, Azzurra Bigioli, Emilie Bouzerand, Josh Carter, Nick Cvetojevic, Benjamin Courtney-Barrer, Adrian Glauser, Simon Gross, Xavier Haubois, Noel James, Andras Peter Joo, Stephane Lagarde, Alain Léger, Jarron Leisenring, Jérôme Loicq, Guillermo Martin, Frantz Martinache, Gyorgy Mezo, Sébastien Morel, Johan Morren, Marc Ollivier, Gordon Robertson, Hélène Rousseau, Warrick Schofield, Nicolas Schuhler, Adam Taras, Bart Vandenbussche, Julien Woillez

Proceedings Volume 13095, 130950F (2024) https://doi.org/10.1117/12.3019922

KEYWORDS: Equipment, Planets, Nulling interferometry, Interferometers, Stars, Exoplanets, Sensors, Photonics, Observational astronomy, Design

Read Abstract +

Proceedings Article | 28 August 2024 Presentation + Paper

Presentation + Paper

The Large Interferometer For Exoplanets (LIFE): a space mission for mid-infrared nulling interferometry

Adrian Glauser, Sascha Quanz, Jonah Hansen, Felix Dannert, Michael Ireland, Hendrik Linz, Olivier Absil, Eleonora Alei, Daniel Angerhausen, Thomas Birbacher, Denis Defrère, Andrea Fortier, Philipp Huber, Jens Kammerer, Romain Laugier, Tim Lichtenberg, Lena Noack, Mohanakrishna Ranganathan, Sarah Rugheimer, Vladimir Airapetian, Yann Alibert, Pedro Amado, Marius Anger, Narsireddy Anugu, Max Aragon, David Armstrong, Amedeo Balbi, Olga Balsalobre-Ruza, Deepayan Banik, Mathias Beck, Surendra Bhattarai, Jonas Biren, Jacopo Bottoni, Marrick Braam, Alexis Brandeker, Lars Buchhave, José Caballero, Juan Cabrera, Ludmila Carone, Óscar Carrión-González, Amadeo Castro-González, Kenny Chan, Ligia Coelho, Tereza Constantinou, Nicolas Cowan, William Danchi, Colin Dandumont, Jeanne Davoult, Arjun Dawn, Jean-Pierre de Vera, Pieter de Visser, Caroline Dorn, Juan Duque Lara, Mark Elowitz, Steve Ertel, Yuedong Fang, Simon Felix, Jonathan Fortney, Malcolm Fridlund, Antonio García Muñoz, Cedric Gillmann, Gregor Golabek, John Lee Grenfell, Greta Guidi, Octavio Guilera, Janis Hagelberg, Janina Hansen, Jacob Haqq-Misra, Nathan Hara, Ravit Helled, Konstantin Herbst, Nina Hernitschek, Sasha Hinkley, Takahiro Ito, Satoshi Itoh, Stavro Ivanovski, Markus Janson, Anders Johansen, Hugh Jones, Stephen Kane, Daniel Kitzmann, Andjelka Kovacevic, Stefan Kraus, Oliver Krause, J. M. Diederik Kruijssen, Rolf Kuiper, Alen Kuriakose, Lucas Labadie, Sylvestre Lacour, Antonino Lanza, Laurits Leedjärv, Monika Lendl, Michaela Leung, Jorge Lillo-Box, Jérôme Loicq, Rafael Luque, Suvrath Mahadevan, Liton Majumdar, Fabien Malbet, Franco Mallia, Joice Mathew, Taro Matsuo, Elisabeth Matthews, Victoria Meadows, Bertrand Mennesson, Michael Meyer, Karan Molaverdikhani, Paul Mollière, John Monnier, Ramon Navarro, Benard Nsamba, Kenshiro Oguri, Apurva Oza, Enric Palle, Carina Persson, Joe Pitman, Eva Plávalová, Francisco Pozuelos, Andreas Quirrenbach, Ramses Ramirez, Ansgar Reiners, Ignasi Ribas, Malena Rice, Berke Vow Ricketti, Peter Roelfsema, Amedeo Romagnolo, María Paula Ronco, Martin Schlecker, Jessica Schonhut-Stasik, Edward Schwieterman, Antranik Sefilian, Eugene Serabyn, Chinmay Shahi, Siddhant Sharma, Laura Silva, Swapnil Singh, Evan Sneed, Locke Spencer, Vito Squicciarini, Johannes Staguhn, Karl Stapelfeldt, Keivan Stassun, Motohide Tamura, Benjamin Taysum, Floris van der Tak, Tim van Kempen, Gautam Vasisht, Haiyang Wang, Robin Wordsworth, Mark Wyatt

Proceedings Volume 13095, 130951D (2024) https://doi.org/10.1117/12.3019090

KEYWORDS: Nulling interferometry, Space operations, Planets, Beam combiners, Exoplanets, Stars, Sensors, Polarization, Telescopes, Observational astronomy

Read Abstract +

SPIE Journal Paper | 15 February 2024

Asgard/NOTT: L-band nulling interferometry at the VLTI. II. Warm optical design and injection system

Germain Garreau, Azzurra Bigioli, Romain Laugier, Gert Raskin, Johan Morren, Jean-Philippe Berger, Colin Dandumont, Harry-Dean Kenchington Goldsmith, Simon Gross, Michael Ireland, Lucas Labadie, Jérôme Loicq, Stephen Madden, Guillermo Martin, Marc-Antoine Martinod, Alexandra Mazzoli, Ahmed Sanny, Hancheng Shao, Kunlun Yan, Denis Defrère

JATIS, Vol. 10, Issue 01, 015002, (February 2024) https://doi.org/10.1117/12.10.1117/1.JATIS.10.1.015002

KEYWORDS: Nulling interferometry, Wavefront errors, Optical design, Equipment, Polarization, Optical path differences, L band, Design, Birefringence, Error analysis

Read Abstract +

SPIE Journal Paper | 27 June 2023

High-angular resolution and high contrast observations from Y to L band at the Very Large Telescope Interferometer with the Asgard Instrumental suite

Marc-Antoine Martinod, Denis Defrère, Michael Ireland, Stefan Kraus, Frantz Martinache, Peter Tuthill, Azzurra Bigioli, Emilie Bouzerand, Julia Bryant, Sorabh Chhabra, Benjamin Courtney-Barrer, Fred Crous, Nick Cvetojevic, Colin Dandumont, Steve Ertel, Tyler Gardner, Germain Garreau, Adrian Glauser, Lucas Labadie, Tiphaine Lagadec, Romain Laugier, Alexandra Mazzoli, Daniel Mortimer, Barnaby R. Norris, Gert Raskin, Gordon Robertson, Ahmed Sanny, Adam Taras

JATIS, Vol. 9, Issue 02, 025007, (June 2023) https://doi.org/10.1117/12.10.1117/1.JATIS.9.2.025007

KEYWORDS: Equipment, Stars, L band, Exoplanets, Astronomical interferometers, Nulling interferometry, Imaging systems, Spatial resolution, Planets, Planetary systems

Read Abstract +

Proceedings Article | 26 August 2022 Presentation + Paper

Presentation + Paper

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

Denis Defrère, 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 Glauser, Simon Gross, Michael 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, Salman Muhammad, Marc Ollivier, Gert Raskin, Hélène Rousseau, Ahmed Sanny, Simon Verlinden, Bart Vandenbussche, Julien Woillez

Proceedings Volume 12183, 121830H (2022) https://doi.org/10.1117/12.2627953

KEYWORDS: Stars, Planets, Exoplanets, Nulling interferometry, L band, Telescopes, Interferometers, Astronomy, Spectral resolution, Interferometry

Read Abstract +

Proceedings Article | 26 August 2022 Presentation + Paper

Presentation + Paper

High-angular and high-contrast VLTI observations from Y to M band with the Asgard instrumental suite

Marc-Antoine Martinod, Denis Defrère, Michael Ireland, Stefan Kraus, Frantz Martinache, Peter Tuthill, Azzurra Bigioli, Julia Bryant, Sorabh Chhabra, Benjamin Courtney-Barrer, Fred Crous, Nick Cvetojevic, Colin Dandumont, Germain Garreau, Tiphaine Lagadec, Romain Laugier, Daniel Mortimer, Barnaby Norris, Gordon Robertson, Adam Taras

Proceedings Volume 12183, 1218310 (2022) https://doi.org/10.1117/12.2628151

KEYWORDS: Sensors, Mirrors, Cameras, Lawrencium, Camera shutters, L band, Interferometers, Calibration, Spectral resolution, Spatial resolution

Read Abstract +

Proceedings Article | 26 August 2022 Poster + Paper

Poster + Paper

Design of the VLTI/Hi-5 light injection system

G. Garreau, A. Bigioli, G. Raskin, J.-P. Berger, C. Dandumont, H.-D. Kenchington Goldsmith, S. Gross, M. Ireland, L. Labadie, R. Laugier, J. Loicq, S. Madden, G. Martin, A. Mazzoli, J. Morren, H. Shao, K. Yan, D. Defrère

Proceedings Volume 12183, 1218320 (2022) https://doi.org/10.1117/12.2629180

KEYWORDS: Mirrors, Zemax, Wavefronts, Tolerancing, Photonics, Nulling interferometry, Error analysis, Telescopes, Optical design

Read Abstract +

Proceedings Article | 26 August 2022 Poster + Paper

Poster + Paper

Technical requirements and optical design of the Hi-5 spectrometer

C. Dandumont, A. Mazzoli, V. Laborde, R. Laugier, A. Bigioli, G. Garreau, S. Gross, M. Ireland, H.-D. Kenchington Goldsmith, L. Labadie, M.-A. Martinod, G. Raskin, A. Sanny, J. Loicq, D. Defrère

Proceedings Volume 12183, 121831Y (2022) https://doi.org/10.1117/12.2627939

KEYWORDS: Spectroscopy, Polarization, Spectral resolution, Optical design, Diffraction, Sensors, Diffraction gratings, Point spread functions, Germanium, Telescopes

Read Abstract +

Proceedings Article | 26 August 2022 Presentation + Paper

Presentation + Paper

Development of the four-telescope photonic nuller of Hi-5 for the characterization of exoplanets in the mid-IR

A. Sanny, S. Gross, L. Labadie, D. Defrère, A. Bigioli, R. Laugier, C. Dandumont, M. Withford

Proceedings Volume 12183, 1218316 (2022) https://doi.org/10.1117/12.2628903

KEYWORDS: Directional couplers, Nulling interferometry, Interferometry, Waveguides, Photometry, Integrated optics, Mid-IR

Read Abstract +

Proceedings Article | 26 August 2022 Poster + Paper

Poster + Paper

The expected performance of nulling at the VLTI down to five mas

Romain Laugier, Denis Defrère, Alexis Matter, Simon Gross, Benjamin Courtney-Barrer, Felix Dannert, Julien Woillez, Olivier Absil, Colin Dandumont

Proceedings Volume 12183, 1218321 (2022) https://doi.org/10.1117/12.2629292

KEYWORDS: Stars, Nulling interferometry, Error analysis, Monte Carlo methods, Dispersion, Spectral resolution, Sensors, Planets, Wavefronts

Read Abstract +

Proceedings Article | 11 June 2021 Open Access

Open Access

Presentation + Paper

Feasibility study of an interferometric Small-Sat to study exoplanets

Colin Dandumont, Denis Defrère, Jérôme Loicq

Proceedings Volume 11852, 118523U (2021) https://doi.org/10.1117/12.2599624

Read Abstract +

Proceedings Article | 13 December 2020 Paper

Paper

Review and scientific prospects of high-contrast optical stellar interferometry

D. Defrère, O. Absil, J.-P. Berger, W. C. Danchi, C. Dandumont, F. Eisenhauer, S. Ertel, T. Gardner, A. Glauser, P. Hinz, M. Ireland, J. Kammerer, S. Kraus, L. Labadie, S. Lacour, R. Laugier, J. Loicq, G. Martin, F. Martinache, M. A. Martinod, B. Mennesson, J. Monnier, B. Norris, M. Nowak, J. U. Pott, S. Quanz, E. Serabyn, J. Stone, P. Tuthill, J. Woillez

Proceedings Volume 11446, 114461J (2020) https://doi.org/10.1117/12.2561505

KEYWORDS: Stellar interferometry, Interferometry, Nulling interferometry, Data acquisition, Stars, Adaptive optics, Integrated optics, Calibration, Large telescopes

Read Abstract +

Proceedings Article | 13 December 2020 Poster + Presentation + Paper

Poster + Presentation + Paper

Performance study of interferometric small-sats to detect exoplanets: updated exoplanet yield and application to nearby exoplanets

Colin Dandumont, Jens Kammerer, Denis Defrère, Jérôme Loicq

Proceedings Volume 11446, 114462G (2020) https://doi.org/10.1117/12.2562119

KEYWORDS: Exoplanets, Interferometry, Satellites, Stars, Monte Carlo methods, Nulling interferometry, Mid-IR, Spatial resolution, Destructive interference, Phase shifts

Read Abstract +

SPIE Journal Paper | 23 September 2020

Exoplanet detection yield of a space-based Bracewell interferometer from small to medium satellites

Colin Dandumont, Denis Defrère, Jens Kammerer, Olivier Absil, Sascha Quanz, Jérôme Loicq

JATIS, Vol. 6, Issue 03, 035004, (September 2020) https://doi.org/10.1117/12.10.1117/1.JATIS.6.3.035004

KEYWORDS: Planets, Exoplanets, Interferometers, Stars, Satellites, Signal to noise ratio, Exoplanetary science, Sensors, Interference (communication), Telescopes

Read Abstract +

Showing 5 of 16 publications

SIGN IN TO:

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Advertisement

Advertisement