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    3rd Nordic Cosmology Meeting

    from Wednesday, 23 September 2026 (10:00) to Friday, 25 September 2026 (15:20)
    Tallinn

            : Sessions
        /     : Talks
            : Breaks
    23 Sept 2026
    		24 Sept 2026
    		25 Sept 2026
    AM
    10:30
    Coffee break (until 11:00)
    10:30
    Registration (until 11:00)
    11:00
    Opening remarks (until 11:10)
    11:10
    Invited talks (until 12:30)
    11:10 Cosmological Inference in the Age of Emulators - Thomas Tram  
    11:50 Pandemic sterile neutrino dark matter - Kai Schmidt-Hoberg  
    10:00
    Invited talks (until 10:40)
    10:00 Gravitationally Lensed Supernovae: Lessons from the First Decade - Edvard Mörtsell  
    10:40
    Coffee break (until 11:10)
    11:10
    Invited talks (until 11:50)
    11:10 Cosmology with the next-generation 4MOST survey - Prof. Elmo Tempel (University of Tartu)  
    11:50
    Contributed talks (until 12:30)
    11:50 The challenge of the largest structures in the Universe - Maret Einasto  
    12:10 Is there evidence for a violation of the cosmological principle? - Till Sawala  
    10:00
    Invited talks (until 11:20)
    10:00 The post-inflationary axion mass in a minimal scaling model - Prof. Mark Hindmarsh (University of Helsinki, University of Sussex)  
    10:40 Gravitational Waves and Magnetic Fields from Axion Inflation - Oksana Iarygina (Nordita)  
    11:20
    Coffee break (until 11:50)
    11:50
    Contributed talks (until 13:00)
    11:50 The theory of Axion Relic Pockets - David Marsh  
    12:10 SU(N) Baryon formation in the large N limit and Dark Matter - Enrico Nardi (National Institute of Chemical Physics and Biophysics (EE))  
    12:30 Gravitational Waves from Dimension-6 Assisted Peccei - Quinn Phase Transitions - Kristjan Müürsepp (INFN-LNF, Frascati and NICPB, Tallinn, Estonia)  
    12:45 Are PTA measurements sensitive to Non Gaussianities? - Jonas el Gammal  
    PM
    12:30
    Lunch (until 14:00)
    14:00
    Invited talks (until 14:30)
    14:00 From curiosity to manifesto: The particle interpretation of gravity - Carlo Marzo (NICPB)  
    14:30
    Contributed talks (until 15:30)
    14:30 Cosmic variance and ergodicity in finite systems with correlations - Syksy Räsänen  
    14:50 Entanglement in an expanding universe - Prof. Nikolaos Tetradis (National and Kapodistrian University of Athens (GR))  
    15:10 Peak Theory Revisited: asphericity and non-Gaussianity - Gabriele Perna  
    15:30
    Coffee break (until 16:00)
    16:00
    Lightning talks (until 17:40)
    16:00 Simulation-Based Inference for Cosmological Field Reconstruction and Parameter Estimation - Oleg Savchenko  
    16:07 Galaxy Superclusters in SDSS DR12 BOSS: Identification and Properties - Sumedh Ghamande  
    16:14 Cosmological gravitational particle production: Scalars and fermions - Duarte Feiteira  
    16:21 Light Dark Matter from Higgs-Portal Freeze-in at Stronger Coupling - Vinicius Oliveira  
    16:28 Axion Misalignment Across First-Order Phase Transitions - Galymzhan Baltabay (NICPB, Taltech)  
    16:35 Landau–Zener Formula and Resonant Axion–Photon Conversion in Neutron Star Magnetospheres - Topi Sirkiä (University of Helsinki)  
    16:42 Non-perturbative aspects of curvaton primordial non-Gaussianities - Mr Sasha Allegrini (KBFI, Tallinn and Tallinn U. Tech.)  
    16:49 A Disformal Affair: How Dark Matter Mimics Lorentz Violation - Apostolos Tsampodimos  
    16:56 Emergent dark matter effect from Cartan Khronon gravity - Lucy Zheng (University of Tartu)  
    17:03 Dark matter in the Cartan geometry? - Priidik Gallagher (University of Tartu)  
    17:10 Dynamical systems analysis of Newer GR cosmology - Vasiliki Karanasou (University of Tartu)  
    17:17 Bianchi cosmologies with four-dimensional groups of motion in New General Relativity - Paul Martin Kull (University of Tartu)  
    17:24 Spacetime energy in general parallel relativity - Roald Heinrich Ivask  
    18:00
    Reception (until 20:00)
    12:30
    Lunch (until 14:00)
    14:00
    Contributed talks (until 15:30)
    14:00 Constraints on the primordial tensor perturbation power spectrum from CMB and gravitational wave observations - Jussi Väliviita  
    14:20 Beyond the basics: exploring gravitational waves from strong phase transitions - David Weir (University of Helsinki)  
    14:40 Sphaleron rate for first-order electroweak phase transitions - Jaakko Annala  
    15:00 Wave-optics lensing of gravitational waves - Helena Ubach  
    15:15 Signatures of $10-10^4\,{\rm M}_{\odot}$ Dark Matter halos in LISA via Stochastic Diffraction - Juan Urrutia (KBFI)  
    15:30
    Coffee break (until 16:00)
    16:00
    Contributed talks (until 16:45)
    16:00 Tachyonic production of dark relics: quantum 2PI formalism with momentum exchanging collisions - Olli Väisänen  
    16:15 Scalar field with nonminimal couplings to metric-affine gravity and inflationary model building - Laur Järv (University of Tartu)  
    16:30 Quasi-pole quintessential inflation in metric-affine gravity - Christian Dioguardi (KBFI)  
    16:45
    Break (until 17:00)
    17:00
    Colloquium (until 18:00)
    17:00 Cracks in the Standard Cosmological Model: Anomalies, Tensions, and Hints of New Physics - Eleonora Di Valentino (University of Sheffield)  
    19:00
    Dinner (until 21:00)
    13:00
    Closing remarks (until 13:05)