Event Horizon Telescope

AndrewMeronek · Post by **AndrewMeronek** » Tue Apr 09, 2019 11:26 am

I think it's pretty neat to get the first image of Sagittarius A* April 10. Here's a few videos I chased down that I think are nicely informative (so far):

AndrewMeronek · Post by **AndrewMeronek** » Tue Apr 09, 2019 11:28 am

Aside from the result itself, the kind of engineering and resources needed to achieve this is IMHO *very* impressive.

harrisonreed · Post by **harrisonreed** » Wed Apr 10, 2019 7:24 am

harrisonreed · Post by **harrisonreed** » Wed Apr 10, 2019 7:29 am

As predicted, it has a bright edge as the gas comes towards us.

norbie2018 · Post by **norbie2018** » Wed Apr 10, 2019 7:49 am

Is that the actual image?

harrisonreed · Post by **harrisonreed** » Wed Apr 10, 2019 8:44 am

Yeah. It's of M87's black hole. I thought it was going to be a picture of Sag A. But this is an order of magnitude more massive. I guess the acretion disk in the image and possibly the circular event horizon is larger than the solar system.

The actual black hole is not imaged of course, because it has no dimensions and is deep within that black circle.

AndrewMeronek · Post by **AndrewMeronek** » Wed Apr 10, 2019 9:52 am

Pretty sweet. Looks like (at least right now) papers on this are available without a paywall:

https://iopscience.iop.org/issue/2041-8205/875/1

Post by **Doug Elliott** » Wed Apr 10, 2019 10:12 am

Krispy Kreme

Event Horizon Telescope

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