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SÉMINAIRE DU GRECO
"The Detweiler-Whiting Singular Field in Self-Force" |
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A. Heffernan |
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The two-body problem is a longstanding open problem going back to the work of Einstein himself. The growing reality of detecting gravitational waves has given this age-old problem a new lease of life. The self-force tackles this problem by using a perturbation of the Einstein field equations in the mass ratio making it ideal to model extreme mass ratio inspirals (EMRIs). If we consider an EMRI system, the smaller black hole can be modelled as a point mass in the Kerr space time - at zero-th order, it follows the geodesic of the background space time but at first order it deviates from this geodesic due to interaction with its own field - which is interpreted as a force, the so-called self-force.
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lundi 19 octobre 2015 - 11:00 Salle des séminaires Évry Schatzman, Institut d'Astrophysique de Paris |
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