Author Topic: Black hole photos  (Read 1194 times)

Andrij

  • Андрій
  • Ερασιτεχνικός μισάνθρωπος
Re: Black hole photos
« Reply #25 on: April 11, 2019, 06:53:17 am »
;D  Andrij.  I pronounce you Complete and Utter GIT   :thumbsup:

PaulF

  • "World's Scariest Barman"
  • It's only impossible if you stop to think about it
Re: Black hole photos
« Reply #26 on: April 11, 2019, 07:52:43 am »

JennyB

  • Old enough to know better
Re: Black hole photos
« Reply #27 on: April 11, 2019, 08:01:53 am »
The strange thing is that its density could be less than that of water.

https://en.wikipedia.org/wiki/Supermassive_black_hole

(Wiki were quick off the mark.)

If only we had a pond big enough.
Jennifer - walker of hills



Re: Black hole photos
« Reply #28 on: April 11, 2019, 08:12:50 am »
I wonder to what extend using a hubble-like telescope / lunar based telescope in the EH telescope network would improve resolution...
"an inordinate fondness for beetles"

T42

  • Gaulois réfractaire
Re: Black hole photos
« Reply #29 on: April 11, 2019, 08:47:35 am »
They're using the aperture synthesis technique developed for radio telescopy in the early 50s. I haven't read up on it for yonks, but I'd guess that a telescope in LEO wouldn't make that much difference, since it would only increase the baseline by (scope altitude)/(Earth diameter). A telescope on the moon would be more effective but out of eyeshot for 2 weeks every lunar month.

There's the problem of data-collation, too. The EH network gathered too much for electronic transmission: they had to store it on stacks of CDs/DVDs and send it for processing in crates.
Où sont les merguez d'antan ?

woollypigs

  • Mr Peli
    • woollypigs
Re: Black hole photos
« Reply #30 on: April 11, 2019, 09:49:00 am »
Thanks to DR. KATIE. BOUMAN !!



Reaction of Katie Bouman, who led the creation of an algorithm to produce first image of black hole.

Pingu

  • Put away those fiery biscuits!
  • Mrs Pingu's domestique
    • the Igloo
Re: Black hole photos
« Reply #31 on: April 11, 2019, 09:50:15 am »
Some good stuff from astrophysicist and "connoisseur of cosmic catastrophes" Katie Macj:

Quote
There's a brief write-up at @PhysicsWorld here: https://physicsworld.com/a/first-images-of-a-black-hole-unveiled-by-astronomers-in-landmark-discovery/ … with more images. Here's the image seen (left) compared with a simulation (middle) and the simulation blurred to the expected resolution of the telescope (right). (Image via Akiyama et al & ApJL)

https://pbs.twimg.com/media/D3y5h1lXoAEovA7.jpg
https://twitter.com/AstroKatie/status/1115971220762189824

Yay, science!  :)

spesh

  • Trump-Russia posting ninja
Re: Black hole photos
« Reply #32 on: April 11, 2019, 09:56:09 am »
And it's only after someone quotes me that I spot the typo... ;D ::-)
If you think this has a happy ending, you haven't been paying attention.

It's not the despair... I can take the despair. It's the hope I can't stand.

woollypigs

  • Mr Peli
    • woollypigs
Re: Black hole photos
« Reply #33 on: April 11, 2019, 09:58:03 am »
It is kinda scary and amazing that Einstein had this idea that it would look like this and then this many years later we have the tech to take a snap of it

Re: Black hole photos
« Reply #34 on: April 12, 2019, 01:17:47 pm »
I can't help but think of



doughnuts....


Re: Black hole photos
« Reply #35 on: April 12, 2019, 06:03:43 pm »
I can't help but think of



doughnuts....
Sprinkles!
I love teh look on her face of unbridled excitement.