Baryonic Processes in the Large-Scale Structuring of the Universe

Jean-baptiste durrive (author)

187 pages, parution le 27/07/2017

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Résumé

Jean-Baptiste Durrive obtained his Ph.D. in Cosmology at the Universite Paris Sud (France) and is currently a postdoctoral researcher at Nagoya University (Japan), working on Dark Energy.

Introduction.- Tools.- Magnetogenesis by Photoionization.- Magnetogenesis Throughout the Epoch of Reionization.- Numerical Approach.- Equilibrium States of Cosmic Walls and Filaments.- Spectral Theory.- Stability of Cosmic Walls.- Further Ongoing Works.

This thesis addresses two very different but equally important topics in the very broad fields of astrophysics and cosmology: (I) the generation of cosmological magnetic fields and (II) gravitational fragmentation of the Cosmic Web. All mathematical developments are completed by illuminating physical interpretations, and the thesis, which is guided by existing observations, is purely theoretical. In part I, the author further develops a magnetogenesis model proposed in the literature, providing an unprecedented level of physical understanding. He demonstrates that the physics of photoionisation is very likely to have premagnetised, at a relevant level, the entire Universe at the early epoch of the formation of the first luminous sources. In part II, the author adapts the tools of plasma spectral theory to the context of gravitational instability of the baryonic gas within the stratified structures of the Cosmic Web. He skillfully derives the wave equation governing the growth of perturbations and explores various equilibrium configurations, in planar and cylindrical geometries characteristic of cosmic walls and filaments, for isothermal and polytropic conditions, with or without an external gravitational background. Clearly structured and written in pedagogical style, this outstanding thesis puts the results into perspective and highlights the merits and limitations of the various approaches explored.1st Edition 2017th editionIllustrationsQB981Cosmology.|Astrophysics.1SwitzerlandCham9783319618814|9783319618821Jean-Baptiste Durrive.Springer Theses

Caractéristiques techniques

	PAPIER
Éditeur(s)	Springer
Auteur(s)	Jean-baptiste durrive (author)
Parution	27/07/2017
Nb. de pages	187
Format	155 x 235
Poids	473g
EAN13	9783319618807

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Baryonic Processes in the Large-Scale Structuring of the Universe

Résumé

Caractéristiques techniques

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