Theory Group Seminars

Francesco Montanari "Model-independent determination of Hubble constant and spatial curvature from the late-time Universe"

Europe/Rome
248 (Ed. C)

248

Ed. C

Description

The value of the Hubble constant has emerged as the strongest point of tension between predictions of the ΛCDM model of cosmology and observations. Independent  determinations of the Hubble constant can provide clues about the origin of the discrepancy. We present the first determination of the Hubble constant from strong lensing time delay data and type Ia supernova (SN) luminosity distances  that is independent of the cosmological model. We also discuss constraints obtained combining SN with cosmic clock and BAO data. The measurements also provide a consistency test of the Friedmann-Lemaître-Robertson-Walker metric.

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