S E M I N A R IDepartament d'Astronomia i Astrofísica
Universitat de València
Ultracompact Schwarzschild stars as black-hole 'mimickers'
Institute of Physics, Research Centre of Theoretical Physics and Astrophysics, Silesian University in Opava, República Txeca
Seminari del departament d'Astronomia i Astrofísica
Dijous 31 octubre 2019
Exotic compact objects (ECOs), or black-hole 'mimickers', have been under scrutiny after the event GW150914. One of these ECOs is the gravastar proposed back in 2001 by Mazur and Mottola. In this talk I will review the recently discovered connection between the constant-density interior Schwarzschild solution, or 'Schwarzschild star', and gravastars. I will discuss the extension of this model to slow rotation, and also some recent investigations which suggest that Schwarzschild stars are stable against radial and non-radial perturbations, making them very good candidates as black-hole 'mimickers'.