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职业迁徙
个人简介
As a theoretical cosmologist, my main aim is to determine the content of the Universe, its evolution and characteristics now and at very early times. While these questions have been outstanding issues for Humankind for centuries, we are now in the position to address them is a quantitative way through the study of astrophysical objects outside our own Galaxy. Two major astrophysical observables can be invoked for this purpose: the Cosmic Microwave Background (CMB) radiation, otherwise known as the radiation that comes to us almost from the times of the Big Bang, and the distribution of galaxies beyond our own. The study of such anisotropies has tremendously advanced the knowledge of the field. Indeed, they convey very straightforward information on the global geometry of the Universe, the kind of matter and energy it contains and also the kind of processes that very early on have seeded the inhomogeneities which have then evolved into the observed bound structures around us (e.g. galaxies and clusters of galaxies). One of my research topics consists in testing possible theoretical scenarios of our Universe by comparing the predictions it would imply for these anisotropies with the actual observations. My group has been involved in the data analysis of the last CMB satellite (Planck) and it is now working with two other collaborations (the Simons Observatory and CMB-S4) to better map this primordial radiation and potentially shed light on the existence of primordial gravitational waves. Apart from the CMB, I also extensively work on galaxy clusters. Clusters are the biggest gravitationally–bound objects in our Universe and are composed of dark matter, galaxies and free “gas” (free charged particles). Clusters are important for two reasons: first they are tracers of the underlying matter distribution, second they form for gravitational collapse (contrasting cosmic expansion) and merging events of smaller objects (like galaxies). Studying clusters we can therefore probe the nature of the dark energy (leading the current expansion), dark matter and the assembly of luminous matter.
研究兴趣
论文共 156 篇作者统计合作学者相似作者
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Shenming Fu, Ian Dell'Antonio, Zacharias Escalante, Jessica Nelson, Anthony Englert, Søren Helhoski, Rahul Shinde, Julia Brockland, Philip LaDuca, Christelyn Larkin, Lucca Paris, Shane Weiner,
arxiv(2024)
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0
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Kevork Abazajian, Arwa Abdulghafour,Graeme E. Addison,Peter Adshead,Zeeshan Ahmed,Marco Ajello, Daniel Akerib,Steven W. Allen,David Alonso,Marcelo Alvarez,Mustafa A. Amin,Mandana Amiri,
arxiv(2022)
引用6浏览0引用
6
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The CMB-HD Collaboration, :,Simone Aiola,Yashar Akrami,Kaustuv Basu,Michael Boylan-Kolchin,Thejs Brinckmann,Sean Bryan,Caitlin M. Casey,Jens Chluba,Sebastien Clesse,Francis-Yan Cyr-Racine,
arxiv(2022)
引用5浏览0引用
5
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The CMB-S Collaboration, :,Kevork Abazajian,Graeme E. Addison,Peter Adshead,Zeeshan Ahmed, Daniel Akerib,Aamir Ali,Steven W. Allen,David Alonso,Marcelo Alvarez,Mustafa A. Amin,
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