Details on the event

01/09/2018

Astrophysics Talk

Gravitational waves from primordial black holes orbiting SgrA*

Stefano Bondani (University of Insubria)

Tuesday 26/04/2022 @ 14:00, Sala IV piano Battiferro (in presenza)

Primordial black holes, allegedly formed in the very early Universe, have been proposed as a possible viable dark matter candidate. In our work we characterized the expected gravitational wave signal detectable by the planned space-borne interferometer LISA and the proposed next generation spaceborne interferometer muAres arising from a supposed population of primordial black holes orbiting SgrA*, the super-massive black hole at the Galactic center. Assuming that such objects indeed form the entire diffuse mass allowed by the observed orbits of stars in the Galactic center ( < 4 * 10^3 solar masses within a radius of 10^3 pc from SgrA*), under the simplified assumption of circular orbits and monochromatic mass function, we assessed the expected signal in gravitational waves, either from resolved and non-resolved sources.