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Stellar Intensity Interferometry Workshop 2025

13–17 Oct 2025
Research Campus Waischenfeld (Germany) of the Fraunhofer Society
Europe/Berlin timezone

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Session

Arrays of small telescopes and Advanced Methods

16 Oct 2025, 14:30
Research Campus Waischenfeld (Germany) of the Fraunhofer Society

Research Campus Waischenfeld (Germany) of the Fraunhofer Society

Fraunhofer-Platz 1, 91344 Waischenfeld

Conveners

Arrays of small telescopes and Advanced Methods

  • William Guerin (CNRS / Université de la Côte d’Azur)

Presentation materials

There are no materials yet.

  1. 12. The Mobile Intensity Interferometer for Stellar Observations---Intensity Interferometry with Fresnel Lens Telescopes
    Christopher Ingenhütt (Erlangen Centre for Astroparticle Physics (ECAP), Friedrich-Alexander-Universität Erlangen-Nürnberg)
    16/10/2025, 14:30
    Invited talk

    In recent years, intensity interferometry has seen renewed interest and successful application at Imaging Atmospheric Cherenkov Telescope arrays such as H.E.S.S., MAGIC and VERITAS. However, these measurements can only be performed during bright moon periods while the instruments' primary purpose---gamma-ray observations---cannot be fulfilled, the Mobile Intensity Interferometer for Stellar...

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  2. 24. Big Performance from Small Telescopes: Multiplexed SII with the MAST Array
    Oren Ironi (Weizmann Institute of Science)
    16/10/2025, 15:10
    Invited talk

    The Multi-Aperture Spectroscopic Telescope (MAST) is a modular array of 20 × 60 cm telescopes currently being commissioned at the Weizmann Astrophysical Observatory in the Negev desert, Israel. Designed primarily for astronomical spectroscopy, MAST employs a novel fiber-fed architecture in which each on-axis beam is collected by an optical fiber and delivered to the object plane of a dedicated...

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  3. 6. Third-order correlation measurements with H.E.S.S. - an experimental study towards closure phases in intensity interferometry
    Andreas Zmija (ECAP)
    16/10/2025, 15:50
    Invited talk

    The simultaneous record of photons with at least three telescopes not only allows traditional two-photon correlations between pairs of telescopes, but also to explore three-photon correlations in the telescope triangle. Such measurements in principle enable measurements of the (cosine of the) closure phase, the sum of the interferometric phases in the triangle, and by that retrieve at least...

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