Physics Department seminar
DIPARTIMENTO DI FISICA, VIA CELORIA 16, MILANO
Aula Consiglio in presence and streaming
https://fisica-unimi.zoom.us/j/96139229142?pwd=ZGpqSFI1Q2ZkbUdlLy9iUUNkbktXZz09

21 Aprile 2022– 11:30
TOM BROADHURST
Department of Physics, University of the Basque Country UPV-EHU, Bilbao, Spain

Comparing Rival Dark Matter ideas with New Lensing detections

"Wave Dark matter" as a Bose-Einstein condensate is emerging as perhaps the
most viable interpretation (in the absence of WIMPs), predicting corrugated Einstein
rings on the de Broglie scale, which we appear to detect in radio lenses on milliarcscond
scales. Alternatively, primordial black holes inspired by LIGO are limited
by the light curves of individual stars that we have detected with Hubble recently in
giant arcs. Instead, we argue most LIGO events are better explained as highly
magnified, conventional stellar black holes of ~10Msun at cosmological distances,
1<z<5 with waveforms redshifted to larger chirp masses.

Students are cordially invited – Contact silvia.leoni@mi.infn.it

Poster