<> "The repository administrator has not yet configured an RDF license."^^ . <> . . "Joint reconstruction of the mass distributions of galaxy\r\nclusters from gravitational lensing and thermal gas"^^ . "We focus on the reconstruction of mass distributions of the massive galaxy clusters, which are the\r\nlargest gravitationally bound objects in the Universe. An approach to determine the masses of clusters\r\nis based on the effects of gravitational lensing. Estimating errors induced by this method is crucial but\r\ncomputationally expensive. We present a novel approach to estimate analytically the errors made by\r\nreconstructions which use weak-lensing information.\r\n\r\nAs galaxy clusters host a large amount of intracluster medium they provide a multitude of observables. We present a new method to infer the lensing potential from two of these: signals of the thermal\r\nSunyaev-Zel’dovich effect and the emission of X-rays due to thermal bremsstrahlung. By assuming\r\nthat the gas is in hydrostatic equilibrium and follows a polytropic equation of state, we link these\r\nobservables to the gravitational potential, which is then projected along the line-of-sight to infer the\r\nlensing potential. For this we deproject the observables by means of the Richardson-Lucy algorithm.\r\nWe test our method on clusters with analytic profiles, a numerical simulation and on the galaxy cluster\r\nRXJ1347.\r\n\r\nOur efforts are the first steps towards a non-parametric algorithm for a joint cluster reconstruction.\r\nBy taking all possible cluster observables into account, mass distributions of clusters will be determined more accurately."^^ . "2014" . . . . . . . "Charles Ludwig"^^ . "Majer"^^ . "Charles Ludwig Majer"^^ . . . . . . "Joint reconstruction of the mass distributions of galaxy\r\nclusters from gravitational lensing and thermal gas (PDF)"^^ . . . "Thesis_C_L_Majer.pdf"^^ . . . "Joint reconstruction of the mass distributions of galaxy\r\nclusters from gravitational lensing and thermal gas (Other)"^^ . . . . . . "lightbox.jpg"^^ . . . "Joint reconstruction of the mass distributions of galaxy\r\nclusters from gravitational lensing and thermal gas (Other)"^^ . . . . . . "preview.jpg"^^ . . . "Joint reconstruction of the mass distributions of galaxy\r\nclusters from gravitational lensing and thermal gas (Other)"^^ . . . . . . "medium.jpg"^^ . . . "Joint reconstruction of the mass distributions of galaxy\r\nclusters from gravitational lensing and thermal gas (Other)"^^ . . . . . . "small.jpg"^^ . . . "Joint reconstruction of the mass distributions of galaxy\r\nclusters from gravitational lensing and thermal gas (Other)"^^ . . . . . . "indexcodes.txt"^^ . . "HTML Summary of #17156 \n\nJoint reconstruction of the mass distributions of galaxy \nclusters from gravitational lensing and thermal gas\n\n" . "text/html" . . . "520 Astronomie"@de . "520 Astronomy and allied sciences"@en . .