BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Boson stars through the prism of numerical relativity - Tamara Evs
 tafyeva\, University of Cambridge
DTSTART:20230317T130000Z
DTEND:20230317T140000Z
UID:TALK196252@talks.cam.ac.uk
CONTACT:Isobel Romero-Shaw
DESCRIPTION:The existence of fermionic compact objects\, such as neutron s
 tars\, is supported by a plethora of observational evidence — an intrigu
 ing idea is whether one can construct stars made up of the bosonic counter
 parts. Such theoretical objects are called boson stars\, proposed to make 
 up a fraction of the dark matter in our Universe and claimed to be promisi
 ng horizonless black hole mimickers. In this talk I will discuss the state
 -of-the-art of numerical evolutions of boson star models in spherical symm
 etry. In particular\, I will discuss how improper initial data constructio
 n can lead to spurious physical effects in the evolution of boson star mer
 gers and introduce methods\, necessary to remedy such spurious features. I
  will present our recent results on boson star head-on collisions of vario
 us mass ratios\, highlighting the differences from the black hole case. La
 stly\, I will present the first steps towards high-precision numerical rel
 ativity simulations of quasi-circular boson star inspirals in the pursuit 
 of using these waveforms to search for boson star signatures in the LIGO-V
 irgo-KAGRA data.
LOCATION:Potter room/Zoom
END:VEVENT
END:VCALENDAR