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First ever image of SUPER-MASSIVE black hole –how big is it? (Patreon)

Published:
2019-04-14 20:54:17
Imported:
2026-06
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God I love making astronomy videos! :-)


This one was kinda fun cos when we were having afternoon coffee in the lab, the chatter about the black hole was electric!!  -all except for me who was telling everyone it was impossible.  -too small! too far away!! too dark!!!  What they were saying just wasnt possible!

I was even more skeptical when I first saw the image 'wheres the scale, wheres the wavelength?'

Well turns out it was done via interferrometry in the microwave portion of the spectrum.  After that you can do some fascinating calculations with this image. :-)

Incidentally, if you want to know how to find this galaxy in the sky, now is not a bad time of year to see it!
https://www.youtube.com/watch?v=-fMlNXwaQ4k 

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First ever image of SUPER-MASSIVE black hole –how big is it?

Theres a dark hole in the center of the galaxy M87! Which telescope to buy. https://www.youtube.com/watch?v=sAzhOSbxMiI Link to amazon affiliate recommendations for telescopes. https://amzn.to/2D8LErF To support this channel directly: https://www.patreon.com/Thunderf00t my other channel: https://www.youtube.com/channel/UCUrdmVprSahXaPKqr04VfgQ life in the ballpit -you think thats air youre breathing? https://www.youtube.com/watch?v=STZjOa5Sf-A

Comments

Talisen Amell

Super massive it’s in the title bud

Anonymous

Thanks for the presentation. I sent the link to someone who worked on the project, and here was their response (regarding the image at 11:52) ... ========================================================== nice way of showing just how small it is, comparison with stars and HST. The 1 light week bar on his image I think should be about twice as long as he shows it: 1 light week = 1.8e14 m, Distance is 16.8 Mpc = 5.2e23 m, One light week thus subtends 74 microarcsec. The ring diameter is 42 microarcsec, so his bar should be 1.8x the ring diameter. That's a minor detail, nice presentation. Checking the event horizon radius: Event horizon radius = 3.7 microarcsec = 7.4 microarcsec diameter Ring diameter = 42 microarcsec Black circle should be 42 microarcsec / 7.4 microarcsec = 5.7 times smaller than the ring His black circle looks a bit small, should perhaps be about 1.5x larger diameter. ==========================================================