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48,448 Views • Feb 12, 2024 • Click to toggle off description
In search of answers to these questions, astrophysicist Erin Kara explores black holes by carefully tracking the gas and plasma swirling near their event horizons. To reconstruct the immediate environment, Kara turns to the X-ray light given off by the accretion disk, measuring the timing of photons using a telescope mounted on the International Space Station. This technique — called reverberation mapping — works in a manner similar to how bats ‘see’ using sound echolocation, allowing researchers to infer the structure of the gas and plasma with remarkable resolution.
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Read the full article: www.quantamagazine.org/to-see-black-holes-in-detai…
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Chapters:
00:00 How do supermassive black holes shape our galaxy?
00:59 Blackholes release X-rays as matter falls in
02:00 Using the NICER telescope to capture photons from black holes
02:30 Reverberation mapping technique is like echolocation
04:10 Imaging stellar-mass black holes
04:34 Formation of relativistic jets
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- VISIT our website: www.quantamagazine.org/
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Quanta Magazine is an editorially independent publication supported by the Simons Foundation: www.simonsfoundation.org/
Views : 48,448
Genre: Science & Technology
Date of upload: Feb 12, 2024 ^^
Rating : 4.975 (14/2,242 LTDR)
RYD date created : 2024-05-16T02:45:31.639396Z
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YouTube Comments - 69 Comments
Top Comments of this video!! :3
Its always nice when a researcher credits their grad students :)
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It's always a good day when there's a new Quanta video
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Always fun to learn new stuff regarding black holes.
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Really love how you turned it into music in the end! Makes the topic understandable on so many levels.
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An elegant approach to "imaging" accretion disks, elegantly told. Someone really needs to update the wikipedia NICER entry.
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Want to see more from her. Great presentation.
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I'm currently watching an excellent NOVA PBS documentary on Black Holes. I'm at the part where they talk about the x-rays and jets and got really confused, so this was great to watch and helped me understand a lot more. Thanks, Dr. Kara & Quanta!
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This is so cool!
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What's the cello track in the beginning called?
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When measuring time differences so close to a massive gravity field, how do you correct for time dilation? I guess the exact mass (aka the gravity forces) of the black hole is unknown and also the two measuring points probably have different gravity.
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Excellent video!
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great science, great video, great presentation
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Great work. Looks like resolution is ~10 min or 0.8billion km. Sounds a lot, but accretion disk is itself of the order of ~1000 bn km!
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hella sick!
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Do you assume that the accretion disk is a uniform disk?
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I like it even more how she tell the story
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Trippy.
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SAG Astar & the Milky way is a water fall, we are on the river's of time. While I think a black hole would be a Serene sink hole. The event Horizon. the very point where wheel meets track of a coal train on rail track's in a tunnel with the Waight of the World; I imagine the Sound heat & Waight of the very point between wheels & track. but then again. A continuous drip of water in the same tunnel can bend a metre of steel rail track. Crazy. Oh & that single drip. That sound & Echo. Is the same time it would take for two Black holes to collide. Only in a greater Waight heat & Radio wave's.
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Awesome!!!🌟🌟💯💯
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@QuantaScienceChannel
3 months ago
Read the full Quanta Magazine interview with Dr. Kara to learn more about her research: www.quantamagazine.org/to-see-black-holes-in-detai…
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