A long history of black holes

by Hagai Netzer

Tel Aviv University

at Physics Colloquium

Mon, 30 Nov 2020, 16:00
Zoom: https://us02web.zoom.us/j/88390741064

Abstract

The first black holes were seeded in pre-born galaxies in the early Universe. Active black holes are the lamp-posts of the Universe. Every 50-100 million years they light up for a short period of time, providing a glimpse of their parent galaxies and their environment.

I will present the black hole history of the Universe using recent observations and focusing on the first 1-2 billion years. To each black hole I will assign a measured mass: one of the greatest achievements of modern astronomy which resulted, among other things, in the 2020 Nobel prize in Physics. I will show how black hole activity is related to mergers of galaxies, and to the quenching of star-formation, and argue that such processes control the growth of the largest galaxies of today.

Zoom link: https://us02web.zoom.us/j/88390741064

Created on 24-11-2020 by Kats, Yevgeny (katsye)
Updaded on 24-11-2020 by Kats, Yevgeny (katsye)