There are 5 different types of black holes and they all form differently! Can you name them all? To learn more about space head to https://brilliant.org/drbecky and sign up for free! plus the first 200 people that go to that link will get 20% off an annual premium subscription.
How we know there's a supermassive black hole at the centre of every galaxy: https://youtu.be/QCv87K_y97w
Could dark matter be made of primordial black holes: https://youtu.be/d0wV5frSb6s
Check out @whatdamath's video on the latest candidate Intermediate Mass Black Hole (note, he's not an astrophysicist, but he's a video journalist who loves space!): https://www.youtube.com/watch?v=SpCtuRK-zyI
Clesse & García-Bellido (2017; primordial black holes as dark matter?) - https://arxiv.org/pdf/1603.05234.pdf
Scholtz and Unwin (2019; planet 9 is a primordial black hole?) - https://arxiv.org/pdf/1909.11090.pdf
Peterson et al. (2005; black hole mass in NGC4395) - https://iopscience.iop.org/article/10.1086/444494/pdf
LIGO collaboration (2020; intermediate-mass black hole detected with LIGO?) - https://arxiv.org/pdf/2009.01075.pdf
Gebhardt et al. (2002; intermediate-mass black hole in G1?) - intermediate-mass black hole detected with LIGO?
Baumgardt et al. (2003; no black hole in G1) - https://arxiv.org/pdf/astro-ph/0301469.pdf
Paynter et al. (2021; intermediate-mass black hole lensing a gamma-ray burst?) - https://arxiv.org/pdf/2103.15414.pdf
00:00 - Introduction
00:36 - 1. Primordial black holes
03:08 - 2. Stellar-mass black holes
05:46 - 4. Supermassive black holes
08:45 - 5. Quasars
10:31 - 3. Intermediate-mass black holes
16:40 - Bloopers
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📚 "Space: 10 Things You Should Know" - UK Edition: http://bit.ly/SpaceDrBecky
📚 US & Canada version: "Space at the speed of light" (same book, different title, with some beautiful illustrations): https://www.penguinrandomhouse.com/books/635406/space-at-the-speed-of-light-by-dr-becky-smethurst/
📚 German translation "Das kleine Buch vom großen Knall" : https://www.dtv.de/buch/becky-smethurst-das-kleine-buch-vom-grossen-knall-28254/
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🎧 Royal Astronomical Society Podcast that I co-host: podfollow.com/supermassive
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👩🏽💻 I'm Dr Becky Smethurst, an astrophysicist at the University of Oxford (Christ Church). I love making videos about science with an unnatural level of enthusiasm. I like to focus on how we know things, not just what we know. And especially, the things we still don't know. If you've ever wondered about something in space and couldn't find an answer online - you can ask me! My day job is to do research into how supermassive black holes can affect the galaxies that they live in. In particular, I look at whether the energy output from the disk of material orbiting around a growing supermassive black hole can stop a galaxy from forming stars.
http://drbecky.uk.com
https://rebeccasmethurst.co.uk