Intensity Interferometry prospects with the CTAO
Biteau J, Carlile C, Dravins D, Fiori M, Hassan T, Kieda D, Lisa M, Luce Q, Mitchell A, Saha P, Spolon A, Stanic L, Vogel N, Zampieri L, Zmija A (2025)
Publication Type: Conference contribution
Publication year: 2025
Journal
Publisher: Sissa Medialab Srl
Book Volume: 501
Conference Proceedings Title: Proceedings of Science
Event location: Geneva, CHE
DOI: 10.22323/1.501.0959
Abstract
A resolved optical image of a gamma-ray emitter would be of enormous scientific interest. For gamma-ray sources associated with interacting stars (colliding winds or novae), stellar intensity interferometry (SII), envisioned as a second observing mode at the Cherenkov Telescope Array Observatory (CTAO), could yield images of the systems in visible light. Recent radius measurements of massive stars with the current generation of Cherenkov telescopes demonstrate that SII is practical, but a timely and intensive effort is needed before images of interacting stars are possible. Fortunately there is also much interesting stellar astrophysics to do along the way: simultaneous mass and radius measurements, resolving stellar oscillations, and imaging outflows from stars. This contribution presents a matrix of the challenges and scientific opportunities for SII at the CTAO.
Authors with CRIS profile
Alison Mitchell
Lehrstuhl für Physik
Naomi Vogel
Lehrstuhl für Physik
Andreas Zmija
Lehrstuhl für Physik
Involved external institutions
Lund University / Lunds universitet
Sweden (SE)
National Institute for Astrophysics / Istituto Nazionale Astrofisica (INAF)
Italy (IT)
Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT)
Spain (ES)
University of Utah
United States (USA) (US)
Ohio State University
United States (USA) (US)
Université Paris-Saclay
France (FR)
University of Zurich / Universität Zürich (UZH)
Switzerland (CH)
Sweden (SE)
National Institute for Astrophysics / Istituto Nazionale Astrofisica (INAF)
Italy (IT)
Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT)
Spain (ES)
University of Utah
United States (USA) (US)
Ohio State University
United States (USA) (US)
Université Paris-Saclay
France (FR)
University of Zurich / Universität Zürich (UZH)
Switzerland (CH)
How to cite
APA:
Biteau, J., Carlile, C., Dravins, D., Fiori, M., Hassan, T., Kieda, D.,... Zmija, A. (2025). Intensity Interferometry prospects with the CTAO. In Proceedings of Science. Geneva, CHE: Sissa Medialab Srl.
MLA:
Biteau, Jonathan, et al. "Intensity Interferometry prospects with the CTAO." Proceedings of the 39th International Cosmic Ray Conference, ICRC 2025, Geneva, CHE Sissa Medialab Srl, 2025.
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