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SÉMINAIRE DU GRECO
"Numerical relativity, boson stars and geons " |
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Philippe Grandclement |
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I will briefly present an efficient class of numerical methods to solve partial differential equations : the spectral method. I will in particular focus on a rather general tool that implements those methods : the Kadath library. I will then present two applications. First I will show results on boson stars, a class of self-gravitating objects that are a possible alternative to the black hole model. Second, I will discuss the nature of self-trapped packet of gravitational waves, in the presence of a negative cosmological constant: the so-called gravitational geons. |
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lundi 5 mars 2018 - 11:00 Salle des séminaires Évry Schatzman, Institut d'Astrophysique de Paris |
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