Prospects and first optical intensity interferometry results with the MAGIC and CTAO-North LST telescopes
Along with their gamma-ray observations at very high energies (VHE;20 GeV - 100 TeV), the two 17-m MAGIC telescopes (at Roque de los Muchachos Observatory, La Palma) have also been utilized as an optical stellar intensity interferometer (SII) for the last six years. The calibration and validation of the setup, alongside the first measurement of the stellar angular diameter of 13 massive stars, were published in a performance paper in early 2024. Around the same time, the technical advancements developed for MAGIC were applied to the first Large-Sized Telescope of the northern hemisphere array of the Cherenkov Telescope Array Observatory (CTAO-North LST-1), a 23-m diameter telescope located near MAGIC. Three more LSTs should be completed beginning of 2026 and they may be equipped in the same manner as LST-1. We will focus on our first measurements with the MAGIC+LST-1 SII and our prospects for this and the MAGIC+LST1-4 SII for the study of several objects that are also known to emit in gamma rays: novae, such as the upcoming T CrB; winds from massive stars, particularly colliding-wind binaries; and Be stars which are typical companions in VHE gamma-ray binaries.
Authors
- Irene Burelli (ORCID: https://orcid.org/0000-0002-8383-2202)
- Prasenjit Saha (ORCID: https://orcid.org/0000-0003-0136-2153)
- Carlos Diaz Ginzo
- V. A. Acciari (ORCID: https://orcid.org/0000-0001-8307-2007)
- J. Cortina (ORCID: https://orcid.org/0000-0003-4576-0452)
- T. Hassan (ORCID: https://orcid.org/0000-0002-4758-9196)
- Amanda de Souza Santos (ORCID: https://orcid.org/0000-0002-8329-9110)
- Irene Jiménez Martínez (ORCID: https://orcid.org/0000-0003-2150-6919)
- Juan José Rodríguez‐Vázquez
- Miguel Polo
- Thomas Schweizer
- Iñigo Jorge
- Gustavo Martı́nez
- Razmik Mirzoyan
- Domenico della Volpe
- Aramis Raiola
- F. Frías García-Lago
- Lucijana Stanic
Publication Details
- Published
- 2025-09-23
- DOI
- https://doi.org/10.22323/1.501.0935
- Primary Topic
- Adaptive optics and wavefront sensing
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Science Foundation
- Sveučilište u Zagrebu
- Comunidad de Madrid
- Ministerio de Ciencia, Innovación y Universidades
- Centres de Recerca de Catalunya
- European Commission
- Deutsche Forschungsgemeinschaft
- Ministry of Education, Culture, Sports, Science and Technology
- Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
- Fundação de Amparo à Pesquisa do Estado de São Paulo
- Bundesministerium für Bildung und Forschung
- Generalitat de Catalunya
- Conselho Nacional de Desenvolvimento Científico e Tecnológico
- Max-Planck-Gesellschaft
- Narodowe Centrum Nauki
- Hrvatska Zaklada za Znanost
- Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro
- Fundação Araucária
- Centre National de la Recherche Scientifique
- Ministerio de Ciencia e Innovación
- Istituto Nazionale di Astrofisica
- Sveučilište Josipa Jurja Strossmayera u Osijeku
- Junta de Andalucía
- Ministério da Ciência, Tecnologia, Inovações e Comunicações
- Istituto Nazionale di Fisica Nucleare
- Instituto de Astrofísica de Canarias
- Japan Society for the Promotion of Science
- Consejo Superior de Investigaciones Científicas
- Staatssekretariat für Bildung, Forschung und Innovation
- European Regional Development Fund
- Agencia Estatal de Investigación
- Institut National de Physique Nucléaire et de Physique des Particules
- Institute for Cosmic Ray Research, University of Tokyo