MATISSE, the VLTI mid-infrared imaging spectro-interferometer at the time of the first published astrophysical results

Stéphane Lagarde; Anthony Meilland; Bruno Lopez; Romain G. Petrov; Fatmé Allouche; Alexis Matter; Jean-Charles Augereau; Phillippe Berio; Felix Bettonvil; Roy van Boekel; Paul Bristow; Pierre Cruzalèbes; William C. Danchi; Andreas Glindemann; Massinissa Hadjara; Mathias Henninger; Michiel Hogerheijde; Walter Jaffe; James Leftley; Michael Lehmitz; Florentin Millour; Claudia Paladini; Eric Pantin; Miguel Riquelme; Thomas Rivinius; Sylvie Robbe-Dubois; Markus Schoeller; Jozsef Varga; Gerd Weigelt; Julien Woillez; Gérard Zins

doi:10.1117/12.2630164

26 August 2022 MATISSE, the VLTI mid-infrared imaging spectro-interferometer at the time of the first published astrophysical results

Stéphane Lagarde, Anthony Meilland, Bruno Lopez, Romain G. Petrov, Fatmé Allouche, Alexis Matter, Jean-Charles Augereau, Phillippe Berio, Felix Bettonvil, Roy van Boekel, Paul Bristow, Pierre Cruzalèbes, William C. Danchi, Andreas Glindemann, Massinissa Hadjara, Mathias Henninger, Michiel Hogerheijde, Walter Jaffe, James Leftley, Michael Lehmitz, Florentin Millour, Claudia Paladini, Eric Pantin, Miguel Riquelme, Thomas Rivinius, Sylvie Robbe-Dubois, Markus Schoeller, Jozsef Varga, Gerd Weigelt, Julien Woillez, Gérard Zins

Author Affiliations +

Proceedings Volume 12183, Optical and Infrared Interferometry and Imaging VIII; 121830A (2022) https://doi.org/10.1117/12.2630164
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Abstract

The Very Large Telescope Interferometer (VLTI) is currently the best infrastructure for long-baseline interferometry in particular in terms of sensitivity and accessibility to the general user. MATISSE, installed at the VLTI focus since end of 2017, belongs to the second generation instruments. MATISSE, the Multi AperTure mid-Infrared SpectroScopic Experiment, for the first time accesses high resolution imaging over a wide spectral domain of the mid-infrared. The instrument is a spectro-interferometric imager in the atmospheric transmission windows called L, M, and N, from 2.8 to 13.0 microns, and combines four optical beams from the VLTI’s unit or auxiliary telescopes. The instrument utilises a multi-axial beam combination that delivers spectrally dispersed fringes. The signal provides the following quantities at several spectral resolutions: photometric flux, coherent flux, visibility, closure phase, wavelength differential visibility and phase, and aperture-synthesis imaging. MATISSE can operate as a stand alone instrument or with the GRA4MAT set-up employing the GRAVITY fringe tracking capabilities. The updated MATISSE performance are presented at the conference together with a selection of two front-line science topics explored since the start of the science operations in 2019. Finally we present the perspective and benefit of two technical improvements foreseen in the coming years: the MATISSE-Wide off-axis fringe tracking capability and new adaptive optics for the UTs in the context of the GRAVITY+ project.

Conference Presentation

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Stéphane Lagarde, Anthony Meilland, Bruno Lopez, Romain G. Petrov, Fatmé Allouche, Alexis Matter, Jean-Charles Augereau, Phillippe Berio, Felix Bettonvil, Roy van Boekel, Paul Bristow, Pierre Cruzalèbes, William C. Danchi, Andreas Glindemann, Massinissa Hadjara, Mathias Henninger, Michiel Hogerheijde, Walter Jaffe, James Leftley, Michael Lehmitz, Florentin Millour, Claudia Paladini, Eric Pantin, Miguel Riquelme, Thomas Rivinius, Sylvie Robbe-Dubois, Markus Schoeller, Jozsef Varga, Gerd Weigelt, Julien Woillez, and Gérard Zins "MATISSE, the VLTI mid-infrared imaging spectro-interferometer at the time of the first published astrophysical results", Proc. SPIE 12183, Optical and Infrared Interferometry and Imaging VIII, 121830A (26 August 2022); https://doi.org/10.1117/12.2630164

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