From roberto.maoli at roma1.infn.it  Mon Dec  9 16:29:22 2024
From: roberto.maoli at roma1.infn.it (Roberto Maoli)
Date: Mon, 09 Dec 2024 16:29:22 +0100
Subject: [astroseminar@Sapienza] seminar by Elsa Teixeira,
 Wednesday Dec 11 at 16.00 in aula Conversi, Sapienza
Message-ID: <619ab55fb6265c5f50e4740b1366effb@roma1.infn.it>

Dear Colleagues,

I am writing to advertise the following seminar by Elsa Teixeira 
(details below).
I kindly invite you to forward the information to interested students 
and colleagues.

Have a good day

Roberto

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Title: Breaking the distance-duality relation to address cosmic tensions
Speaker: Elsa Teixeira
Institution: Universit? di Montpellier, Francia
Date: Wednesday December 11, 2024
Time: 4:00PM
Location: Aula Conversi, Marconi Building (CU013), Dept. of Physics, 
Sapienza University

Meet link: https://meet.google.com/cst-ayyp-zku

Abstract: Persistent cosmic tensions arise from discrepancies in the 
cosmological distance ladder constructed from different distance 
observables, such as BAO and SnIa, which are calibrated using 
measurements from either the early or late Universe. These tensions are 
typically evaluated under the assumption that the distance-duality 
relation (DDR) holds, allowing for a direct comparison between 
measurements of the luminosity and angular diameter distances. In this 
talk, we will examine the implications of relaxing this assumption and 
considering more general relations. We will discuss how this approach 
impacts the interpretation of current cosmic tensions and its potential 
to clarify whether new physics is needed to address these discrepancies.

web: https://agenda.infn.it/event/43942/


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  Roberto  Maoli                                 Tel: (39) 06 49 914 303
  Dip. Fisica - Univ. di Roma "La Sapienza"
  Piazzale Aldo Moro 2                e-mail: roberto.maoli at roma1.infn.it
  00185 Roma - ITALIA

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