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Que sait-on des trous noirs ? Peut-on les observer ? Qu'y a-t-il à l'intérieur ? Existent-ils vraiment ?Les trous noirs sont des astres fascinants, des sphères dans l'espace dont rien ne peut s'échapper. De tels objets ne peuvent ni émettre, ni réfléchir la lumière, mais certains sont pourtant extraordinairement lumineux. Toutefois, ce n'est pas là leur seule bizarrerie : dans un trou noir, l'espace se change en temps, le temps en espace, et nul ne connaît la véritable nature de la singularité centrale.

Black holes (Astronomy) --- Trous noirs (astronomie)

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The formation of the first supermassive black holes is one of the main open questions in our understanding of high-redshift structure formation. In this book, we aim to provide a summary of state-of-the-art modern research on this topic, exploring the formation of massive black holes from a fluid-dynamical, stellar-dynamical and chemical perspective. The book thus presents a solid theoretical foundation, a comparison with current observations and future observational perspectives with upcoming missions such as the Square Kilometre Array, the European Extremely Large Telescope, the Euclid satellite as well as possible detections via gravitational waves.

Black holes (Astronomy) --- Red shift. --- Astrophysics. --- Trous noirs (astronomie) --- Décalage vers le rouge. --- Astrophysique.

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The ultimate proofs that black holes exist have been obtained very recently thanks to the detection of gravitational waves from their coalescence and due to material orbiting at a distance of some gravitational radii imaged by optical interferometry or X-ray reverberation mapping. This book provides three comprehensive and up-to-date reviews covering the gravitational wave breakthrough, our understanding of accretion and feedback in supermassive black holes and the relevance of black holes for the Universe since the Big Bang. Neil J. Cornish presents gravitational wave emission from black hole mergers and the physics of detection. Andrew King reviews the physics of accretion on to supermassive black holes and their feedback on host galaxies. Tiziana Di Matteo addresses our understanding of black hole formation at cosmic dawn, the emergence of the first quasars, black hole merging and structure formation. The topics covered by the 48th Saas-Fee Course provide a broad overview of the importance of black holes in modern astrophysics.

Black holes (Astronomy) --- Frozen stars --- Compact objects (Astronomy) --- Gravitational collapse --- Stars --- Astrophysics. --- Cosmology. --- Astrophysics and Astroparticles. --- Astronomy --- Deism --- Metaphysics --- Astronomical physics --- Cosmic physics --- Physics

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Ce livre est une invitation à découvrir le lien profond qui unit la relativité générale (la théorie de la gravitation d'Einstein) et la géométrie différentielle, branche de la géométrie issue de la découverte des géométries non-euclidiennes par Gauss et Riemann au XIXe siècle. En abordant la relativité par ses aspects géométriques, ce livre montre que les phénomènes surprenants de la relativité, tels que le paradoxe des jumeaux, les boucles temporelles, les trous noirs, les trous de ver, ne sont que des conséquences de la géométrie de l'espace-temps. Le livre explore également la fascinante relation entre les mathématiques et la physique à travers une des théories les plus passionnantes de notre siècle, la relativité générale, sujet particulièrement d'actualité depuis les récentes observations des ondes gravitationnelles et les observations de plus en plus directes des trous noirs. Il montre ainsi que les mathématiques, loin d'être simplement un « outil », sont une des sources d'inspiration les plus fécondes des physiciens théoriciens. Ce livre offrira une introduction plaisante aux mathématiques de la relativité, autant à l'étudiant en sciences qu'au lecteur curieux et motivé par les découvertes scientifiques les plus fascinantes de notre époque.

Black holes (Astronomy) --- Mathematical physics. --- Relativity (Physics) --- Physical mathematics --- Physics --- Gravitation --- Nonrelativistic quantum mechanics --- Space and time --- Frozen stars --- Compact objects (Astronomy) --- Gravitational collapse --- Stars --- Mathematics --- Geometry, Differential. --- Cosmology. --- Relativité (physique) --- Géométrie différentielle. --- Trous noirs (astronomie) --- Physique mathématique. --- Cosmologie. --- Relativité (physique) --- Géométrie différentielle. --- Physique mathématique.

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Based on Prof. Lüst's Masters course at the University of Munich, this book begins with a short introduction to general relativity. It then presents black hole solutions, and discusses Penrose diagrams, black hole thermodynamics and entropy, the Unruh effect, Hawking radiation, the black hole information problem, black holes in supergravity and string theory, the black hole microstate counting in string theory, asymptotic symmetries in general relativity, and a particular quantum model for black holes. The book offers an up-to-date summary of all the pertinent questions in this highly active field of physics, and is ideal reading for graduate students and young researchers.

Black holes (Astronomy) --- Thermodynamics. --- Classical and Quantum Gravitation, Relativity Theory. --- Cosmology. --- Quantum Field Theories, String Theory. --- Chemistry, Physical and theoretical --- Dynamics --- Mechanics --- Physics --- Heat --- Heat-engines --- Quantum theory --- Gravitation. --- Quantum field theory. --- String theory. --- Models, String --- String theory --- Nuclear reactions --- Relativistic quantum field theory --- Field theory (Physics) --- Relativity (Physics) --- Astronomy --- Deism --- Metaphysics --- Matter --- Antigravity --- Centrifugal force --- Properties --- Forats negres (Astronomia) --- Cosmologia --- Termodinàmica --- Termologia --- Dinàmica --- Física --- Mecànica --- Bombes de calor --- Dinàmica de gasos --- Entalpia --- Entropia --- Mecànica estadística --- Processos irreversibles --- Radiació del cos negre --- Segon principi de la termodinàmica --- Termodinàmica atmosfèrica --- Termodinàmica del desequilibri --- Termoelasticitat --- Termoquímica --- Transferència de massa --- Anàlisi tèrmica --- Calor --- Fred --- Màquines tèrmiques --- Motors tèrmics --- Teoria quàntica --- Univers (Metafísica) --- Deisme --- Filosofia de la natura --- Metafísica --- Antropocentrisme --- Big Bang --- Cosmologia islàmica --- Cosmologia jueva --- Cosmologia quàntica --- Etern retorn --- Expansió de l'univers --- Hipòtesi nebular --- Macrocosmos --- Microcosmos --- Monadologia --- Origen del sistema solar --- Origen dels planetes --- Pluralitat de mons --- Principi antròpic --- Quatre elements (Filosofia) --- Teleologia --- Teosofia --- Creació --- Col·lapse gravitacional --- String models.