Communication

Interview for CEA IRFU COMM on Euclid, in occasion of Euclid launch

An interview from CERN Alumni. It covers my work at CosmoStat CEA for the Euclid space satellite; but also programmes I have been part of so far: from data science with Pivigo, to mentoring for The Supernova Foundation and #space4women; to GESDA - Geneva Science and Diplomacy Anticipator programme, thanks to which I could rediscover Geneva for its #sciencediplomacy capacity.

Un team di cosmologi ha ricostruito la storia dell’energia oscura attraverso la cronologia dell’universo usando una varietà di dati recenti, dalla radiazione di fondo alle supernove, dimostrando che questa componente, oggi dominante, era presente al più in quantità modeste durante le prime fasi del cosmo. Secondo questo studio, una simile ‘early dark energy’ non risolve del tutto le tensioni tra modello cosmologico standard e osservazioni. Ne parliamo con una delle autrici, Valeria Pettorino del Cea di Parigi" (Interview by Claudia Mignone for MEDIA INAF).

Le prix MCAA 2020 lui a été décerné pour son parcours d’excellence dans la collaboration Euclid et son engagement dans la communauté scientifique

Au terme de trois années de travail, une équipe de la collaboration Euclid, coordonnée par l’Irfu, dévoile une nouvelle méthode pour traiter conjointement les observations ciblant spécifiquement la matière noire ou l’énergie noire, deux concepts distincts mais corrélés. Résultat : une précision de l’interprétation cosmologique grandement améliorée !

A cosmologist and data scientist with a literary bent, Valeria Pettorino thinks multiple angles and diverse points of view are needed to unriddle the nature of dark matter and dark energy.

Déterminer la cause de l’accélération cosmique est l’un des grands défis de la cosmologie. S’agit-il d’une constante (ΛCDM) ou d’un nouveau fluide (énergie noire, DE) ?

Researchers, including physicists from Heidelberg University, have gained new insights into dark energy and the theory of gravitation by analysing data from the “Planck” satellite mission of the European Space Agency (ESA).

Astronomers discovered dark energy in 1998, but are we any closer to understanding what it really is?

(In Italian) Non è il suo universo preferito quello che si è trovato a dover descrivere, ha ammesso sorridendo Brian Schmidt, arrivato al Meeting di Lindau fresco del Nobel ottenuto lo scorso anno...