Taiwan major contributor to black hole image: institute | Tech

Taiwan major contributor to black hole image: institute | Tech

This dark portrait of the event horizon was obtained of the supermassive black hole in the center of the galaxy Messier 87 (M87 for short) by the Event Horizon Telescope (EHT), an global collaboration whose support includes the National Science Foundation. This is known as the black hole's shadow or silhouette. Instead, the scientists used radio signals to capture the black hole's "shadow" - the bright ring that forms around its boundary, or "event horizon", when light bends due to the extreme gravity around the hole.

Through the span of seven days in April 2017, EHT space experts on four landmasses facilitated their endeavors to mention objective facts of the supermassive black hole.

Black holes are spatial phenomena that have tickled human curiosity for quite some time.

Scientists across the globe collaborated for the project, called the Event Horizon Project (EHT), as eight telescopes from different locations combined to create a virtual telescope as large as the earth, using a technique called interferometry.

It then took more than a year for that data to be processed into the first glimpse of images that scientists saw in the summer of 2018.

Albert Einstein's theory of relativity is confirmed.

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"The determination of the black hole mass agrees beautifully with earlier measurements inferred from the velocities of stars", Ma Chung-Pei, a professor of physics and astronomy at University of California, Berkeley, told Xinhua.

While the image may not be that over-the-top interesting at first glance, we should appreciate exactly what we are looking at. "We have received the first direct evidence of the existence of super-massive black holes... in centers of major galaxies", the Russian scientist added. Fortunately, our galaxy's supermassive black hole is on the quiet side.

"If immersed in a bright region, like a disc of glowing gas, we expect a black hole to create a dark region similar to a shadow - something predicted by Einstein's general theory of relativity that we've never seen before", explained chair of the EHT Science Council Heino Falcke of Radboud University, the Netherlands. Its distance from the Earth is around 55 million light-years, so it clearly does not threat our planet.

We have already reported on the preparations to one of the most important events in the history of space exploration - taking pictures of a black hole.

Black holes are invisible, but scientists know they are present because of the effect they have on other things in a galaxy.

An worldwide consortium of scientists is expected to release the first ever photos of a black hole.

One of them is located at the center of the Milky Way galaxy and is equivalent, in terms of mass, to 4.1 million suns.

It was revealed at a series of simultaneous news conferences around the world on Wednesday.

Fortunately, more telescopes have joined the campaign over the past couple of years, and astronomers are working on ways to improve their data processing methods. Our simulations, which are based on the motion of magnetic fields and hot gas near the black hole, showed that the jets are powered by the black hole itself.

Those images were so good that scientists at first anxious that it was just too good to be true, Boston University's Marscher said.

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