Literatura científica selecionada sobre o tema "Population de trous noirs"
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Artigos de revistas sobre o assunto "Population de trous noirs"
Giddings, Steven. "Trous noirs". Pour la Science N° 518 - décembre, n.º 12 (8 de maio de 2020): 24–33. http://dx.doi.org/10.3917/pls.518.0024.
Texto completo da fonteBailly, Sean. "Les trous noirs". Pour la Science N° 518 - décembre, n.º 12 (8 de maio de 2020): 15. http://dx.doi.org/10.3917/pls.518.0015.
Texto completo da fonteLagrange, Nicolas. "Les trous noirs d'une consultation". Alternatives Économiques N° 357, n.º 5 (1 de maio de 2016): 54. http://dx.doi.org/10.3917/ae.357.0054.
Texto completo da fonteBailly, Sean. "Test sur les trous noirs". Pour la Science Septembre, n.º 9 (1 de setembro de 2021): 9. http://dx.doi.org/10.3917/pls.527.0009.
Texto completo da fonteLafontaine, Jacques, e Luc Rozoy. "Courbure scalaire et trous noirs". Séminaire de théorie spectrale et géométrie 18 (2000): 69–76. http://dx.doi.org/10.5802/tsg.223.
Texto completo da fonteHinton, Ladson. "Trous noirs, inquiétante étrangeté et transformation". Cahiers jungiens de psychanalyse 125, n.º 1 (2008): 31. http://dx.doi.org/10.3917/cjung.125.0031.
Texto completo da fonteFebel, Gisela. "How to shape Black diasporic identity in France by reading (about) literature". Journal of Global Diaspora 3, n.º 1 (1 de junho de 2022): 55–69. http://dx.doi.org/10.1386/gdm_00024_1.
Texto completo da fonteLe Maux, Laurent. "Les trous noirs de la monnaie pleine". Revue française d'économie XXXV, n.º 2 (2020): 51. http://dx.doi.org/10.3917/rfe.202.0051.
Texto completo da fonteMashaal, Maurice. "Les trous noirs, chausse-trappe ou salut". Pour la Science N° 518 - décembre, n.º 12 (8 de maio de 2020): 3. http://dx.doi.org/10.3917/pls.518.0003.
Texto completo da fonteGierczak, Lucas. "Une constante à l’épreuve des trous noirs". Pour la Science N° 511 - mai, n.º 5 (1 de maio de 2020): 12. http://dx.doi.org/10.3917/pls.511.0012.
Texto completo da fonteTeses / dissertações sobre o assunto "Population de trous noirs"
Pierra, Grégoire. "Cosmologie avec les sirènes sombres et populations de binaires de trous noirs avec les ondes gravitationnelles de LIGO-Virgo-KAGRA". Electronic Thesis or Diss., Lyon 1, 2024. http://www.theses.fr/2024LYO10162.
Texto completo da fonteGravitational waves constitute a new probe for exploring the Universe and studying cosmic phenomena that were previously inaccessible. This thesis is based on gravitational wave data collected by the LIGO-Virgo-KAGRA scientific collaboration detectors. The first part of this work focuses on cosmology with dark sirens, a method that uses binary black hole mergers to measure cosmological distances and infer the value of the Hubble constant, without requiring an electromagnetic counterpart. It also presents ICAROGW, a hierarchical Bayesian inference code that uses gravitational wave data and models describing the astrophysical properties of black holes, such as their masses, distances, and spins, to estimate the Hubble constant. The second part of this study tests in particular the robustness of the dark siren method for cosmology. It explores the impact of binary black hole population parameterization on the estimation of the Hubble constant, especially when certain astrophysical processes are not modelled. The third part focuses on the search and identification of subpopulations of binary black holes in the universe. It examines how different formation channels can influence the intrinsic characteristics of these compact objects, particularly through po- tential correlations between their mass and spin. The existence of these correlations would be indicative of the presence of subpopulations of black holes, such as hierarchical black holes, resulting from previous mergers. Finally, the manuscript concludes with a study on the use of machine learning methods to improve the quality of the Virgo interferometer data and detect the presence of non-Gaussian noises. This work also explores the potential integration of iDQ results into gravitational wave signal detection algorithms, thereby aiming to strengthen the confidence level in these detections
Leygnac, Cédric. "Trous noirs non asymptotiquement plats". Phd thesis, Université Claude Bernard - Lyon I, 2004. http://tel.archives-ouvertes.fr/tel-00006633.
Texto completo da fonteLeygnac, Cédric Clément Gérard. "Trous noirs non asymptotiquement plats". Villeurbanne : Université Claude Bernard, 2004. http://tel.archives-ouvertes.fr/docs/00/04/70/17/PDF/tel-00006633.pdf.
Texto completo da fonteCoriat, Mickaël. "Jets relativistes des trous noirs accrétants". Paris 7, 2010. http://www.theses.fr/2010PA077257.
Texto completo da fonteMatter ejection processes, more commonly called jets, are among the most ubiquitous phenomena of the universe at ail scales of size and energy and are inseparable from accretion process. This intimate link, still poorly understood, is the main focus of this thesis. Through multi-wavelength observations of X-ray binary Systems hosting a black hole, I will try to bring new constraints on the physics of relativistic jets and the accretion - ejection coupling. We strive first to compare the simultaneous infrared, optical and X-ray emissions of the binary GX 339-4 over a period of five years. We study the nature of the central accretion flow, one of the least understood emission components of X-ray binaries, both in its geometry and in term of the physical processes that take place. This component is fondamental since it is could be the jets launching area or be highly connected to it. Then we focus on the infrared emission of the jets to investigate the physical conditions close to the jets base. We finally study the influence of irradiation of the outer accretion disc by the central X-ray source. Then, we present the results of a long-term radio and X-ray study of the microquasar H1743- 322. This System belongs to a population of accreting black holes that display, for a given X-ray luminosity, a radio emission fainter than expected. We make several assumptions about the physical origin of this phenomenon and show in particular that these sources could have a radiatively efficient central accretion flow. We finally explore the phases of return to the hard state of GX 339-4. We follow the re- emergence of the compact jets emission and try to bring new constraints on the physics of jet formation
Erbin, Harold. "Trous noirs en supergravité N = 2". Thesis, Paris 6, 2015. http://www.theses.fr/2015PA066367/document.
Texto completo da fonteThe most general black hole solution of Einstein–Maxwell theory has been discovered by Plebański and Demiański in 1976.This thesis provides several steps towards generalizing this solution by embedding it into N = 2 gauged supergravity.The (bosonic fields of the) latter consists in the metric together with gauge fields and two kinds of scalar fields (vector scalars and hyperscalars); as a consequence finding a general solution is involved and one needs to focus on specific subclasses of solutions or to rely on solution generating algorithms. In the first part of the thesis we approach the problem using the first strategy: we restrict our attention to BPS solutions, relying on a symplectic covariant formalism. First we study the possible Abelian gaugings involving the hyperscalars in order to understand which are the necessary conditions for obtaining N = 2 adS4 vacua and near-horizon geometries associated to the asymptotics of static black holes.A preliminary step is to obtain covariant expressions for the Killing vectors of symmetric special quaternionic-Kähler manifolds. Then we describe a general analytic solutions for 1/4-BPS (extremal) black holes with mass, NUT, dyonic charges and running scalars in N = 2 Fayet–Iliopoulos gauged supergravity with a symmetric very special Kähler manifold. In the second part we provide an extension of the Janis–Newman algorithm to all bosonic fields with spin less than 2, to topological horizons and to other dimensions. This provides all the necessary tools for applying this solution generating algorithm to (un)gauged supergravity, and interesting connections with the N = 2 supergravity theory are unravelled
Gracia, Ruiz Rodrigo. "Search for populations of unresolved sources of high energy neutrinos with the ANTARES neutrino telescope". Thesis, Sorbonne Paris Cité, 2016. http://www.theses.fr/2016USPCC150/document.
Texto completo da fonteAstroparticle physics is a branch of physics related to the study of the most violent astrophysical phenomena in the Universe such as Active Galactic Nuclei (AGN) or Gamma Ray Bursts (GRB), which emit different cosmic messengers such as neutrinos, gravitational waves, electromagnetic radiation and charged particles. A proper understanding of these objects involves then a multi-messenger approach, in which neutrinos play a fundamental role. Thanks to their physical properties, neutrinos allow us to explore the physical phenomena produced in the densest astrophysical environments and to observe the Universe at large distances. This thesis is divided into three main parts. The first part is composed by three chapters dedicated to the scientific context in which the rest of the thesis is developed. In the first chapter, the scientific motivations for the search of high energy cosmic neutrinos are described. In chapter 2, a description of the main properties of AGN are given. These sources have been chosen as "test" objects in the research of potential neutrino sources. Finally, the third chapter is dedicated to the detection principle and main results of the currently operating neutrino telescopes. The second part of the thesis is dedicated to the technical description of the ANTARES neutrino telescope, and composed of two chapters. Chapter 4 describes the ANTARES telescope, the data acquisition and the data selection. In the last part of this chapter, the work made to measure the efficiency loss of the photomultipliers (PMTs) by using the baseline rates is described. Chapter 5 is dedicated to the Monte Carlo simulations. The different simulation packages used by the ANTARES collaboration are presented, and the different simulated processes are described. A contribution to the official package for the generation of neutrino interactions, relative to the implementation of the propagation and decay of the tau leptons, is described. The third part is dedicated to the search of potential cosmic signals in the events recorded by ANTARES. It comprises four chapters. Chapter 6 is a description of the signal search method, chapter 7 presents the principles of an analysis based on a 2 point correlation function that will be applied in chapter 9 with the purpose of searching for an excess of cosmic neutrinos characterized by an expected spatial distribution which is different from that of atmospheric neutrinos. This method is well suited for the detection of the collective effect produced by populations of weak point-like sources. Chapter 8 describes the simulation of the neutrino flux emitted by AGN. By using the luminosity function for different AGN classes obtained from X-ray observations, and the ANTARES acceptance, neutrinos coming from AGN populations are simulated as a function of two parameters which are related to the number of sources in the population, and to their luminosities. The analysis of these populations with the 2 point correlation function is detailed in chapter 9
Malzac, Julien. "A la lumière des trous noirs - Disques d'accrétion, couronnes et jets dans l'environnement des trous noirs accrétants". Habilitation à diriger des recherches, Université Paul Sabatier - Toulouse III, 2008. http://tel.archives-ouvertes.fr/tel-00332415.
Texto completo da fonteGoldwurm, Andrea. "EMISSION DE HAUTE ENERGIE DES TROUS NOIRS GALACTIQUES". Habilitation à diriger des recherches, Université Paris-Diderot - Paris VII, 2006. http://tel.archives-ouvertes.fr/tel-00150144.
Texto completo da fonteTout d'abord, grâce aux données gamma récoltées avec SIGMA et INTEGRAL, j'ai pu réaliser un programme d'études sur les systèmes binaires serrées, où un trou noir de masse stellaire accréte de la matière de l'étoile compagnon donnant lieu à de l'émission X/gamma. Le
résultat majeur de ce travail a été la découverte d'une structure spectrale d'émission de haute énergie dans la nova X de la constellation de la Mouche. Je décris aussi plusieurs autres résultats obtenus grâce aux données gamma, couplés à des données X d'autres observatoires, sur 13 sources transitoires (novas X) et 3 sources persistantes à trou noir que j'ai pu étudier dans la gamme entre 1 et 1000 keV.
J'ai aussi développé un vaste programme scientifique concernant l'étude de l'émission de haute énergie du trou noir supermassif du centre de la Galaxie. Grâce au balayage profond effectué avec SIGMA j'ai d'abord établi des limites supérieures contraignantes à l'émission gamma de cet objet. Ce résultat a conduit au développement de nouveaux modèles décrivant les processus d'accrétion dans les trous noirs. Ensuite, j'ai découvert des sursauts X en provenance du trou noir
central avec des données de l'observatoire XMM-Newton et plus récemment une source INTEGRAL qui coïncide avec le centre de la Galaxie. Je discute ces résultats dans le cadre de la physique du centre galactique et des processus d'accrétion et éjection dans les trous noirs.
Je présente enfin mon programme de recherche pour les années à venir, qui voit en première ligne mon implication dans un projet d'astronomie spatiale des hautes énergies, SIMBOL-X. Ce projet prévoie, par le moyen de deux satellites en formation, d'étendre la technique de focalisation par incidence rasante aux rayons X durs afin d'étudier les phénomènes non thermiques de notre univers.
Bardoux, Yannis. "Trous noirs dans des théories modifiées de la gravitation". Phd thesis, Université Paris Sud - Paris XI, 2012. http://tel.archives-ouvertes.fr/tel-00737357.
Texto completo da fonteSuebsuwong, Thitiwat. "Effets relativistes sur l'émission haute énergie des trous noirs". Phd thesis, Université Paul Sabatier - Toulouse III, 2006. http://tel.archives-ouvertes.fr/tel-00115726.
Texto completo da fonteLivros sobre o assunto "Population de trous noirs"
Cassé, Michel. Les trous noirs en pleine lumière. Paris: OdileJacob, 2009.
Encontre o texto completo da fonteCassé, Michel. Les trous noirs en pleine lumière. Paris: OdileJacob, 2009.
Encontre o texto completo da fonteLuminet, Jean-Pierre. Le destin de l'univers: Trous noirs et énergie sombre. Paris: Fayard, 2006.
Encontre o texto completo da fonteHawking, S. W. Une brève histoire du temps: Du big bang aux trous noirs. Paris: Flammarion, 1989.
Encontre o texto completo da fonteHawking, S. W. Une brève histoire du temps: Du Big Bang aux trous noirs. Paris: France Loisirs, 1989.
Encontre o texto completo da fonteLuminet, Jean-Pierre. Black holes. Cambridge [England]: Cambridge University Press, 1992.
Encontre o texto completo da fonteWilliams, Dorothy W. Les noirs à Montréal, 1628-1986: Essai de démographie urbaine. Montréal, Qué: VLB, 1998.
Encontre o texto completo da fonte1966-, Falcke Heino, e Hehl F. W. 1937-, eds. The Galactic black hole: Lectures on general relativity and astrophysics. Bristol: Institute of Physics Pub., 2003.
Encontre o texto completo da fonteMonica, Colpi, ed. Joint evolution of black holes and galaxies. Boca Raton, FL: Taylor & Francis, 2006.
Encontre o texto completo da fonteMonica, Colpi, ed. Joint evolution of black holes and galaxies: Edited by Monica Colpi ... [et al.]. Boca Raton, FL: Taylor&Francis, 2006.
Encontre o texto completo da fonteCapítulos de livros sobre o assunto "Population de trous noirs"
"7 Trous noirs". In Les relativités : Espace, Temps, Gravitation, 111–36. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-1815-0-009.
Texto completo da fonte"5.2 Trous noirs..." In Voyage dans les mathématiques de l'espace-temps, 136–44. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-2278-2-031.
Texto completo da fonte"7 Trous noirs". In Les relativités : Espace, Temps, Gravitation, 111–36. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-1815-0.c009.
Texto completo da fonte"5.2 Trous noirs..." In Voyage dans les mathématiques de l'espace-temps, 136–44. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-2278-2.c031.
Texto completo da fonteRiazuelo, Alain. "Les trous noirs". In Les trous noirs, 191–215. De Boeck Supérieur, 2018. http://dx.doi.org/10.3917/dbu.riazu.2018.01.0191.
Texto completo da fonteRiazuelo, Alain. "Les trous noirs". In Les trous noirs, 143–51. De Boeck Supérieur, 2018. http://dx.doi.org/10.3917/dbu.riazu.2018.01.0143.
Texto completo da fonteRiazuelo, Alain. "Les trous noirs". In Les trous noirs, XV—XVI. De Boeck Supérieur, 2018. http://dx.doi.org/10.3917/dbu.riazu.2018.01.0000d.
Texto completo da fonte"Les trous noirs". In Les trous noirs, 217–18. De Boeck Supérieur, 2018. http://dx.doi.org/10.3917/dbu.riazu.2018.01.0217.
Texto completo da fonteRiazuelo, Alain. "Les trous noirs". In Les trous noirs, 1–9. De Boeck Supérieur, 2018. http://dx.doi.org/10.3917/dbu.riazu.2018.01.0001.
Texto completo da fonteRiazuelo, Alain. "Les trous noirs". In Les trous noirs, 11–38. De Boeck Supérieur, 2018. http://dx.doi.org/10.3917/dbu.riazu.2018.01.0011.
Texto completo da fonte