EPISODE · Nov 23, 2018 · 38 MIN
24: Black Holes Feeding On Colliding Galaxies
from syzygy · host Chris Stewart
Help us make Syzygy even better! Tell your friends and give us a review, or show your support on Patreon: patreon.com/syzygypodSyzygy is produced by Chris Stewart and co-hosted by Dr Emily Brunsden from the Department of Physics at the University of York.On the web: syzygy.fm | Twitter: @syzygypodThings we talk about in this episode:The merging galaxies paper: https://www.nature.com/articles/s41586-018-0652-7Hubblesite article about the story: https://www.nasa.gov/feature/goddard/2018/astronomers-unveil-growing-black-holes-in-colliding-galaxiesSimulations of galaxy collisions: https://svs.gsfc.nasa.gov/10687Stephan’s Quintet: https://apod.nasa.gov/apod/ap140327.htmlKeck Observatory: http://www.keckobservatory.orgGravitational wave discovery: https://www.ligo.caltech.edu/news/ligo20170927Simulations of SMBH mergers: https://www.space.com/42017-merging-supermassive-black-holes-eerie-glow.htmlMilky Way and Andromeda are going to collide: https://www.nasa.gov/mission_pages/hubble/science/milky-way-collide.htmlAnd they will form … Milkdromeda! https://svs.gsfc.nasa.gov/30955Andromeda in the night sky: https://apod.nasa.gov/apod/ap061228.htmlIf only Andromeda was a bit brighter: http://i.imgur.com/EpuhHJa.png
What this episode covers
There are a lot of galaxies in the universe — billions and billions of them, in fact. And many of them are in the process of collision: some collided long ago, some are merging right now, and some will slam together in the distant future. When they collide, the supermassive black holes in their cores can collide and merge too — and that's a pretty extreme event. Studying how fast these mergers take place is changing astronomers’ models of galaxy formation and evolution.
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24: Black Holes Feeding On Colliding Galaxies
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