Astronomy / Space First photo of black hole recorded
- Thread starter lysan
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In the Q&A session they said they were working on SagA* (no promises
). I thought so too, the pic is of M87's Supermassive Black hole during a relatively quiet period and is rather beautiful.
The brightness variance in the ring of light comes from dilation - the bright part is travelling towards us, the dim side moving away as the accretion disk orbits the black hole.
Maybe it's not a black hole, but a star doughnut?
It's this, but even more out of focus
That totally redefined my worldview and renders all artistic impressions mootWell, the image is in... 40 billion kms wide; 3 million times the size of earth
https://www.bbc.co.uk/news/science-environment-47873592
![[VR] optimal_909](https://forums-cdn.zaonce.net/data/avatars/m/109/109067.jpg?1553781733){kind=avatar}
What I see on the image is mind boggling. Both what I actually see, and also that scientists managed to capture this image.
The only 'disappointment' is that we do not get to see it in a slightly sideways manner as no gravitational lensing occurs with the accretion disk.
The only 'disappointment' is that we do not get to see it in a slightly sideways manner as no gravitational lensing occurs with the accretion disk.
So, why it took 2 years to publish a picture? I've read few articles, none of them give a definitive answer.
Thanks for your reply. Unfortunately we're operating on different levels of assumptions about reality so I don't think we can continue the discussion.
If you do want to continue, we'll have to start to try to find the point where our viewpoints diverge. I can start if you like:-
1. The physical world is real.
2. There are natural causes for the things that happen in the world around us.
3. Evidence from the natural world can be used to learn about those causes.
4. There is consistency in the causes that operate in the natural world.
Do you concur?
Its a composite made from different radio telescopes combined mathematically to give the same effect as a radio telescope the size of the earth. The maths is very hard apparently.
Although the telescopes are not physically connected, they are able to synchronize their recorded data with atomic clocks — hydrogen masers — which precisely time their observations. These observations were collected at a wavelength of 1.3 mm during a 2017 global campaign. Each telescope of the EHT produced enormous amounts of data — roughly 350 terabytes per day — which was stored on high-performance helium-filled hard drives. These data were flown to highly specialised supercomputers — known as correlators — at the Max Planck Institute for Radio Astronomy and MIT Haystack Observatory to be combined. They were then painstakingly converted into an image using novel computational tools developed by the collaboration.
The correlation computations took the time from the end of the 2017 observing "campaign" I suppose.
Maybe watch this TV prog to see if they answer that:
How to see a Black Hole: The Universe's Greatest Mystery can be seen the UK at 21:00 on BBC Four on Wednesday 10 April.
If you watch the press conference the different scientists on the panel explain different aspects of the project including the image generation.
watch from 15:40
They are also working on Sag A mainly because it is not active. The project wants to examine an active and non active Black hole for comparison, I suspect the reason why we see M87 first in this press conference is partly down to Sag A not being very emissive at this time, where as M87 is a giant feeding monster.
I thought a black hole was round.
It swallows the earth like a peanut to the aperitif.Well, the image is in... 40 billion kms wide; 3 million times the size of earth
https://www.bbc.co.uk/news/science-environment-47873592
o7
A very beautiful image, in all cases.Lies!!!!! .... This what it looks like, Actual-image-of-Sag-A*-black-hole-and-totally-not-Elite-Dangerous
(Also not my image, so credit to whoever took that image, but it wasn't me, even though I have been there in-game)
This image is truly amazing. Science (mainly Einstein) predicted black holes and what they would look like. They look as predicted! That's science at its best. A hypothesis that can be falsified, but isn't. I wish more people would understand the consequences of this. It's almost more sensational than finding life on Mars. Of course we Martians know it's there, but you humans still need a proper proof
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That would make one hell of a wallpaper !Well, the image is in... 40 billion kms wide; 3 million times the size of earth
https://www.bbc.co.uk/news/science-environment-47873592
o7
Talking of wallpapers, is there anywhere I can find this pic in HD ?
O.k. thanks for the info.
No one cares what you think.