S E M I N A R I

Departament d'Astronomia i Astrofísica
Universitat de València

    Hartle's model within the general theory of perturbative matchings

Borja Reina

UPV/EHU


Seminari del departament d'Astronomia i Astrofisica

Dimecres 09 juliol 2014

12:00


Resum

Hartle's model [1] 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 [2] 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. [1] James B. Hartle The Astrophysical Journal 150 (1967) 1005-1029. [2] Marc Mars "First and second-order perturbations of hypersurfaces" CQG 22 (2005) 3325–3347.