[astroseminar at Sapienza] Avviso di seminario per OGGI 13/12/2021 ore 16 AULA 6 NEF

[Alessandro Melchiorri]

Cari tutti,

ecco l'avviso per il seminario di oggi alle ore 16 di Dan Scolnic sui
recenti risultati sulla costante di Hubble. Il seminario si terra' in
presenza presso l'aula 6 del NEF (Edificio Fermi) a partire dalle ore 16.
Vi mando anche i dettagli del link zoom:

https://uniroma1.zoom.us/j/86243865218?pwd=Y2IyRjVRSHUxVUo1Uk5UaFdIMG1lZz09



ID riunione: 862 4386 5218

Passcode: 236994

Prof. Daniel M. Scolnic (Duke University, USA)
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New Results from the Pantheon+ and SH0ES teams on Measuring the Hubble
Constant

This last week, the Pantheon+ and SH0ES teams released likely their final
major update to the measurement of the Hubble constant, which parameterizes
the current expansion rate of the universe.  The result is in 5sigma
tension with constraints from the Cosmic Microwave Background.  I will
overview the new measurements on the local side, and dive into the multiple
papers released this last week.  I will go over various past challenges to
the local-side measurement and detail how our new analyses have addressed
them.  I will then discuss next steps and challenges.
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