Bayes versus the virial theorem: inferring the potential of a galaxy from a kinematical snapshot

We present a new framework for estimating a galaxy's gravitational potential, φ, from its stellar kinematics by adopting a fully non-parametric model for the galaxy's unknown actionspace distribution function, f ( J). Having an expression for the joint likelihood of φ and f, the likelihood...

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Autor principal: Magorrian, J
Format: Journal article
Idioma:English
Publicat: 2014