Extremely Large Telescope: publications

MOSAIC at ELT: instrument AITV strategies

Ground-based and Airborne Instrumentation for Astronomy XI SPIE (2026) 270-270

Authors:

Kacem El Hadi, Myriam A Rodrigues, Diane Chapuis, Alondra Solá, Marie Larrieu, Laurent Martin, Marc Jaquet, Alexandre Bozier, Bruno Castilho, Timothy Morris, Nazim A Bharmal, Ian Lewis, Markus Thurneysen, Maxime Rombach, Julien Dejonghe, Francisco Montenegro, Ana Pérez Calpena, Meghna Mohamed, Michel Dupieux, Clément Hottier, Franck Ducret, Thomas Augusteijn, Gavin Dalton, Marisa Luisa Garcia-Vargas, Alessandro Meoli, Roser Pello, Mathieu Puech, Ruben Sanchez-Janssen, Jay Stephan, Christian Surace

MOSAIC at ELT: instrument AITV strategies (Erratum)

Ground-based and Airborne Instrumentation for Astronomy XI SPIE (2026) 466-466

Authors:

Kacem El Hadi, Myriam A Rodrigues, Diane Chapuis, Alondra Sola, Marie Larrieu, Laurent Martin, Marc Jaquet, Alexandre Bozier, Bruno Castilho, Timothy Morris, Nazim A Bharmal, Ian Lewis, Markus Thurneysen, Maxime Rombach, Julien Dejonghe, Francisco Montenegro, Ana Pérez Calpena, Meghna Mohamed, Michel Dupieux, Clement Hottier, Franck Ducret, Thomas Augusteijn, Gavin Dalton, Marisa Luisa Garcia-Vargas, Alessandro Meoli, Roser Pello, Mathieu Puech, Ruben Sanchez-Janssen, Jay Stephan, Christian Surace

MOSAIC at ELT: overview and current status

Ground-based and Airborne Instrumentation for Astronomy XI SPIE (2026) 43-43

Authors:

Roser Pelló, Mathieu Puech, Myriam Rodrigues, Rubén Sanchez-Janssen, Gavin B Dalton, Thomas Augusteijn, Kacem El Hadi, Marísa L García-Vargas, Marie Larrieu, Alessandro Meoli, Hermine Schnetler, Alondra Sola, Jay Stephan, Christian Surace, Fátima de Frondat, Nazim A Bharmal, Diane Chapuis, Kjetil Dohlen, Clément Hottier, Marc Jaquet, Andreas Kelz, Laurent Martin, Meghna Mohamed, Tim Morris, Ana Pérez-Calpena, Walter Seifert, Wenli Xu, Lex Kaper, Jesús Gallego, Jose Afonso, Beatriz Barbuy, Thierry Contini, Chistopher Evans, Alexis Finoguenov, Susan Kassin, Jorryt Matthee, Christopher Miller, Göran Ostlin, Laura Pentericci, Daniel Schaerer, Matthias Steinmetz, Bodo Ziegler, Patrick Caillier, Angela Cortes, Vincenzo Mainieri, Oliver Pfuhl, Suzanne Ramsay, Ricardo Araujo, Joar Brynnel, Tim Butterley, Bruno Castilho, Christopher J Conselice, Nick Cvetojevic, Christopher Davison, Julien Dejonghe, Mirka Dessauges-Zavadsky, Michel Dupieux, Décio Ferreira, Héctor Flores, Paolo Franzetti, Steffen Frey, Armando Gil de Paz, Thiago S Gonçalves, Isabelle Guinouard, Matthew J Hayes, Regis Haigron, Michaela Hirschmann, Yevgeniy Ivanisenko, Sean D Johnson, Carol Kehrig, Jennifer King, Jean-Paul Kneib, Davor Krajnović, Audrey A Lanotte, Nicolas Laporte, Philippe Laporte, Soren Larsen, Ian Lewis, Nicolas Nardetto, Elena Pancino, Cyril Pannetier, Matthew M Pieri, Delphine Porquet, Andreas Quirrenbach, Maxime Rombach, Markus Thurneysen, Susanna Vergani, François Wildi, Fernando Alvarez Moreno, Raziye Artan, David Barr, Mathilde Beaulieu, Eva Besada, Anjali Bhatt, Arjan Bik, Charlotte Bond, Mohamed Bouri, Jérémie Boy, Alexandre Bozier, David Bramall, Sarah Brands, Antonio Braulio, Cristina Cabello, Marina Calero de Ory, Rocio Calvo, Africa Castillo Morales, Zalpha Challita, Stephen Chittik, Andrés Curto Maldonado, Franck Ducret, Elfi Dijkstra, Eddy Elswijk, Gilles Fasola, Carmen Feiz, Fabio Fialho, Johan Floriot, Marco Fumana, Louis Gabarra, Lia Garcia, Oscar García, Adriana Gargiulo, Julien Gaudemard, Domenico Giannone, Polly Gill, Jean-Luc Gimenez, Alicia Gómez-Gutierrez, Carole Gouvret, Alan Guenther, Alexandre T Hahfauline, Douglas Harvey, José Miguel Ibáñez, Jorge Iglesias, Dereck Ives, Estelle Jouve, David King, Hanindyo Kuncarayakti, Peter Kunst, Sander Kwast, Stéphane Lagarde, Kieran Leschinski, Jiang-Tao Li, Gianluca Licausi, Sebastiano Ligori, Adam Lowe, José Antonio Lopez Orozco, Mike Macintosh, Héctor Magan, Manuel Maldonado, Thomas Marquart, Lucimara Martins, Marisole Melara, Jens Melinder, Jeannet Molema, David Montgomery, Emma Múgica, Francisco Najarro, Ramon Navarro, Antoine Ottomani, Tony Pamplona, Phil Parr-Burman, Sergio Pascual, María Peñataro, Isabel Pérez Grande, Jan Rinze Peterzon, Thomas Pichon, Javier Piqueras, Nicolai Piskunov, Ramón Rodriguez Cardoso, Sergio Rodriguez Venzal, Rick Romp, Hossein Rostami, Frédéric Royer, Daniel Sablowski, Ainhoa Sánchez, Ernesto Sánchez Blanco, Ellen Schallig, Jurgen Schmoll, Noah Schwartz, Sylvestre Taburet, David Terrett, Ignacio Torralbo, Niels Tromp, Gerardo Veredas, Yanbin Yang, Alec York, Werner Zeilinger

MOSAIC at ELT: status of science requirements and trade-off studies

SPIE, the international society for optics and photonics (2026) 237

Authors:

Jay Stephan, Mathieu Puech, Rubén Sánchez Janssen, Myriam Rodrigues, Armando Gil de Paz, Nicolas Laporte, Søren Larsen, Timothy J Morris, Roser Pello, Thomas Augusteijn, Gavin B Dalton, Kacem El Hadi, Marísa Luisa García-Vargas, Marie Larrieu, Alessandro Meoli, Hermine Schnetler, Christian Surace

MOSAIC at ELT: the Instrument Core Subsystem (ICOS) design status

Ground-based and Airborne Instrumentation for Astronomy XI SPIE (2026) 275-275

Authors:

Bruno V Castilho, Décio Ferreira, André G Coutinho, Antonio Braulio Neto, Bruno S Pinto, Leandro H dos Santos, Eleonai L Barbedo, Lucimara Martins, Milena Lusa, Marc Jacquet, Laurent Martin, Alexandre Bozier, Diane Chapuis Kerouanton, Kacem El Hadi, Beatriz S Barbuy, Thomas Augusteijn, Gavin B Dalton, Marísa Luisa García-Vargas, Marie Larrieu, Alessandro Meoli, Roser Pello, Mathieu Puech, Myriam Rodrigues, Rubén Sanchez Janssen, Hermine Schnetler, Jay Stephan, Christian Surace

Abstract:

MOSAIC, the wide-field multi-object spectrograph for the Extremely Large Telescope (ELT), is advancing through Phase B2, where subsystem architectures mature toward the Preliminary Design Review. Central to the Front-End channel is the Instrument Core Subsystem (ICOS), which provides the mechanical support, alignment stability, and controlled rotation required by the focal-plane assembly and the GLAO, ORSS, and CALEMOS subsystems. ICOS comprises a steel Static Structure Module interfaced to the Nasmyth platform, a motorized Rotating Structure Module that delivers field -rotation compensation with accuracy better than 0.095 mrad , and a Cable Wrap Module enabling continuous ±180 deg motion. ICOS must include an alignment strategy capable of restoring the optical axis to the sub-100μm level required for injection efficiency and pupil stability. With refined interfaces and a mass current estimated mass of 12.97 t, within the 13.3 t allocation, ICOS is converging toward a robust preliminary design for Phase C.

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