Event Horizon Telescope ready to image black hole

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Event Horizon Telescope ready to image black hole

#1  Postby the_5th_ape » Feb 17, 2017 2:07 pm

Scientists believe they are on the verge of obtaining the first ever picture of a black hole.

They have built an Earth-sized "virtual telescope" by linking a large array of radio receivers - from the South Pole, to Hawaii, to the Americas and Europe.

There is optimism that observations to be conducted during 5-14 April could finally deliver the long-sought prize.

In the sights of the so-called "Event Horizon Telescope" will be the monster black hole at the centre of our galaxy.

http://www.bbc.com/news/science-environment-38937141
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Re: Event Horizon Telescope ready to image black hole

#2  Postby newolder » Feb 17, 2017 2:18 pm

See also: http://www.eventhorizontelescope.org

ETA from the link:
...
This new 1.3 mm VLBI detection confirms that short-wavelength VLBI of Sgr A* can and will be used to directly probe the event horizon of this black hole candidate: in short, Sgr A* is the right object, VLBI is the right technique, and this decade is the right time.
...
Last edited by newolder on Feb 18, 2017 11:51 am, edited 1 time in total.
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Re: Event Horizon Telescope ready to image black hole

#3  Postby DavidMcC » Feb 18, 2017 11:44 am

I can't find a link, but I'm pretty sure an image of this kind was made years ago, although it wasn't of Sagittarius A*, but of a more local, stellar black hole.

EDIT: On the other hand, it might have been only a simulation. :(
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Re: Event Horizon Telescope ready to image black hole

#4  Postby newolder » Apr 05, 2017 8:52 pm

The campaign to capture the first-ever image of a black hole has begun.

From today (April 5) through April 14, astronomers will use a system of radio telescopes around the world to peer at the gigantic black hole at the center of the Milky Way, a behemoth called Sagittarius A* (Sgr A*) that's 4 million times more massive than the sun.
...
Though the current observing campaign will be over soon, it will take a while for astronomers to piece together the images. For starters, so much information will be collected by the participating telescopes around the world that it will be physically flown, rather than transmitted, to the central processing facility at the Massachusetts Institute of Technology's Haystack Observatory.

Then, the data will have to be calibrated to account for different weather, atmospheric and other conditions at the various sites. The first results from the campaign will likely be published next year, EHT team members said.

more @ space.com link
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Re: Event Horizon Telescope ready to image black hole

#5  Postby newolder » Apr 07, 2017 12:03 pm

Katie Bouman's related TED talk.
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Re: Event Horizon Telescope ready to image black hole

#6  Postby tuco » Apr 07, 2017 4:47 pm

Oranges, Mick Jagger, discoball, giant elephant and puzzle :) Very cool.
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Re: Event Horizon Telescope ready to image black hole

#7  Postby DavidMcC » May 12, 2017 12:14 pm

The space.com silmulation is obviously based on the assumption that Saggitarius A* is not feeding on any gas. However, AFAIK, it started doing just that a year or so ago, so it will not look quite as shown in the picture, I suspect.
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Re: Event Horizon Telescope ready to image black hole

#8  Postby newolder » Feb 04, 2019 12:36 pm

Update on the data analysis: Why Don’t We Have a Photo of a Black Hole Yet?

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Re: Event Horizon Telescope ready to image black hole

#9  Postby zulumoose » Feb 04, 2019 12:42 pm

Observer1 - "Oh no, the AI units have spotted one of the major glitches in the program"

Observer2 - "Oh well, shut it down then and boot the next universe simulation, what are we up to now, 43?"
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Re: Event Horizon Telescope ready to image black hole

#10  Postby felltoearth » Feb 04, 2019 11:51 pm

:lol:
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