Title: Illuminating the Dark Ages: cosmic backgrounds from accretion onto primordial black
hole dark matter
Speaker: Guenther Hasinger,
Director of Science, European Space Agency
Abstract: In this seminar I review surprising recent discoveries around black holes and dark matter: Where do the supermassive black holes in the early Universe and in all galaxies come from? How are the very massive black hole binaries created, that produce LIGO/VIRGO gravitational waves? Which black holes produce the tiny early universe fingerprints in the X-ray and infrared cosmic background fluctuations, and the integrated cosmic 21cm signal? And why does dark matter seem to be fluctuating on small scales in the Hubble images of clusters of galaxies? These tantalizing findings add to the puzzle of primordial black holes contributing significantly to the dark matter.
Hasinger Paper [published as JCAP 7,22 (2020)]
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Hasinger Biography (Chapter 8)
Recording
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Presentation(pdf)