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CosmoFONDUE - Cosmological Fundamental Observables and Novel Discoveries in Universe Evolution

10–13 Jun 2025
École de physique, Quai Ernest-Ansermet 24, 1205 Genève, Suisse
Europe/Zurich timezone

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Session

GWs emitted after the CMB

1B
10 Jun 2025, 16:30
Main auditorium (École de physique, Quai Ernest-Ansermet 24, 1205 Genève, Suisse)

Main auditorium

École de physique, Quai Ernest-Ansermet 24, 1205 Genève, Suisse

Presentation materials

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  1. 78. Cosmology and fundamental physics with GWs
    Michele Maggiore (University of Geneva)
    10/06/2025, 16:30
    GWs emitted after the CMB
    talk

    Introduction to gravitational waves emitted after the CMB

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  2. 39. Chirality in Cosmology: testing large-scale mirror symmetry with LIGO-Virgo black hole mergers.
    Adrian del Rio (Charles III University of Madrid)
    10/06/2025, 17:00
    GWs emitted after the CMB
    talk

    Precessing black-hole mergers can produce an imbalance between right- and left-handed circularly polarized gravitational waves. According to the Cosmological Principle, such chiral emission should average out to zero across all binary mergers in our Universe in order to preserve mirror-reflection symmetry at very large scales. In this talk, I will show how gravitational-wave astronomy enables...

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  3. 68. Gravitational lensing of gravitational waves : new insights from the wave optics regime
    Martin Pijnenburg
    10/06/2025, 17:20
    talk

    Gravitational lensing, i.e. the deflection of propagating signals by spacetime curvature is one key prediction of General Relativity. Besides this intrinsic interest as a fundamental prediction, this effect has become one crucial probe used by the cosmology community to identify and map dark matter.
    Relying on the idea that the propagation of both electromagnetic and gravitational waves (GW)...

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  4. 13. Deviations from CDM in SMBH, bounds from JWST and predictions for lISA
    Juan Urrutia (KBFI, Tallin)
    10/06/2025, 17:40
    GWs emitted after the CMB
    talk

    In the talk, I will introduce a new semianalytical model (SAM) for supermassive black hole (SMBH) growth that departs from traditional EPS-based merger tree methods by directly tracking differential SMBH growth via mergers. I will show that this model reveals a clear preference for heavy SMBH seeds across diverse datasets—including recent JWST observations—except in cases of extremely...

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