Overview of the status of the European Solar Telescope

C. Quintero Noda; M. Collados; M. Barreto Cabrera; M. Núñez Cagigal; M. Belío-Asín; J. Bienes; S. Bonaque-González; Y. Carballo-Martín; J. Cózar-Castellano; H. M. Chulani; N. Feijóo Amoedo; B. Femenía Castellá; I. Ferro Rodríguez; J. M. Gonzalez-Cava; F. González; A. Hérnandez-Delgado; R. López López; Y. Martín Hernando; A. Mato; A. Matta-Gómez; F. Merlos García; I. Montilla; L. M. Montoya; C. Padilla-Hernández; J. Quintero Nehrkorn; Y. Ramos Sapena; S. Regalado Olivares; M. Reyes García-Talavera; H. Rodríguez Delgado; L. F. Rodríguez Ramos; C. Ruiz de Galarreta; M. Sangiorgi; J. Sánchez Capuchino; M. L. Sánchez Rodríguez; P. Sola La Serna; M. Soler Trujillo; N. Vega Reyes

doi:10.1117/12.2628967

29 August 2022 Overview of the status of the European Solar Telescope

C. Quintero Noda, M. Collados, M. Barreto Cabrera, M. Núñez Cagigal, M. Belío-Asín, J. Bienes, S. Bonaque-González, Y. Carballo-Martín, J. Cózar-Castellano, H. M. Chulani, N. Feijóo Amoedo, B. Femenía Castellá, I. Ferro Rodríguez, J. M. Gonzalez-Cava, F. González, A. Hérnandez-Delgado, R. López López, Y. Martín Hernando, A. Mato, A. Matta-Gómez, F. Merlos García, I. Montilla, L. M. Montoya, C. Padilla-Hernández, J. Quintero Nehrkorn, Y. Ramos Sapena, S. Regalado Olivares, M. Reyes García-Talavera, H. Rodríguez Delgado, L. F. Rodríguez Ramos, C. Ruiz de Galarreta, M. Sangiorgi, J. Sánchez Capuchino, M. L. Sánchez Rodríguez, P. Sola La Serna, M. Soler Trujillo, N. Vega Reyes

Author Affiliations +

Proceedings Volume 12182, Ground-based and Airborne Telescopes IX; 1218215 (2022) https://doi.org/10.1117/12.2628967
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Abstract

The European Solar Telescope (EST) aims to become the most ambitious ground-based solar telescope in Europe. Its roots lie in the knowledge and expertise gained from building and running previous infrastructures like, among others, the Vacuum Tower Telescope, Swedish Solar Telescope, or the GREGOR telescope. They are installed in the Canary Islands observatories, the selected EST site. Furthermore, the telescope has a novel optical design, including an adaptive secondary mirror (ASM) that allows reducing the number of optical surfaces to 6 mirrors (plus two lenses) before the instruments’ focal plane. The latter, combined with a configuration of mirrors that are located orthogonally oriented to compensate for the instrumental polarisation induced by each surface, makes EST a reference telescope in terms of throughput and polarimetric accuracy. In its main core design, EST also includes a Multi-Conjugated Adaptive Optics (MCAO) system where the ASM compensates for the ground layer turbulence. The rest of the mirrors on the optical train correct for the atmospheric turbulence at different layers of the atmosphere. The MCAO guarantees that the large theoretical spatial resolution of the 4-metre EST primary mirror is achieved over a circular FOV of 60 arcsec. Those main elements, combined with a set of instruments with capabilities for spectropolarimetry, make EST the next frontier in solar ground-based astronomy. In this contribution, we will cover the main properties and status of all the mentioned sub-systems and the following steps that will lead to the construction phase.

Conference Presentation

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C. Quintero Noda, M. Collados, M. Barreto Cabrera, M. Núñez Cagigal, M. Belío-Asín, J. Bienes, S. Bonaque-González, Y. Carballo-Martín, J. Cózar-Castellano, H. M. Chulani, N. Feijóo Amoedo, B. Femenía Castellá, I. Ferro Rodríguez, J. M. Gonzalez-Cava, F. González, A. Hérnandez-Delgado, R. López López, Y. Martín Hernando, A. Mato, A. Matta-Gómez, F. Merlos García, I. Montilla, L. M. Montoya, C. Padilla-Hernández, J. Quintero Nehrkorn, Y. Ramos Sapena, S. Regalado Olivares, M. Reyes García-Talavera, H. Rodríguez Delgado, L. F. Rodríguez Ramos, C. Ruiz de Galarreta, M. Sangiorgi, J. Sánchez Capuchino, M. L. Sánchez Rodríguez, P. Sola La Serna, M. Soler Trujillo, and N. Vega Reyes "Overview of the status of the European Solar Telescope", Proc. SPIE 12182, Ground-based and Airborne Telescopes IX, 1218215 (29 August 2022); https://doi.org/10.1117/12.2628967

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