S E M I N A R IDepartament d'Astronomia i Astrofísica
Universitat de València
Hartle's model within the general theory of perturbative matchings
Seminari del departament d'Astronomia i Astrofisica
Dimecres 09 juliol 2014
Hartle's model  describes slowly rotating relativistic stars in the context of GR and essentially consists of the perturbative matching of a perfect fluid interior with an asymptotically flat vacuum exterior, up to second order in a rotation parameter. In the first part of this talk I will present the tools  needed to revisit this model from a consistent point of view and in the second one I will discuss the importance of the implicit assumptions made to construct the original model.  James B. Hartle The Astrophysical Journal 150 (1967) 1005-1029.  Marc Mars "First and second-order perturbations of hypersurfaces" CQG 22 (2005) 3325–3347.