Jakarta –
“We can always only see the impact of the “black hole”. For example, we see the folding of space. Or as something around a star, but not clearly visible, “said astronomer Knud Jahnke. He and his team studied phases, during which various matter falls into a “black hole,” and the area around it glows.
If there is a lot of gas around the “black hole”, then friction can occur. If there is friction, it means that high temperature is created. And in extreme environments, the temperature is very high and eventually appears to glow. That is, we see around the “black hole” appears very much light.
So a “black hole” can generate and emit more light than all the stars in the galaxy. But that comes from the area in the core area, which is relatively not big.
Just been able to track 300 black holes
“We know that there are a lot of galaxies in the universe. And if all of them have a “black hole” at the center, that means, in the past universe there were also a lot of “black holes.” Now we know there are several hundred, about 300s”, said Knud Jahnke, adding.
He explained further, “If we want to see how the plant world is constructed on Earth, maybe we will examine 300 giant trees of the Sequoioideae species.” Seen from the outside, of course these trees are very impressive. But that doesn’t answer the question, how did they grow from small to that big. How does it look when it’s only half its size now? How is the new time a seed?
In this case, Knud Jahnke and his team tried not only to observe the largest tree, but to see how it looked when it was only half its size when it was small. And from there they try to see how the growth mechanism of the “black hole.”
The “black hole” is gigantic in size
These researchers saw how the phase when the “black hole” was still growing. But those phases are very long. The phase in which the mass grows by two times, that is, by a large increase, can last several hundred million years.
And now there is a “black hole,” which has a very large mass. Let’s say 600, 700 million years after the “big bang” or the Big Bang, and the mass is billions of solar masses. And the growing time is likely to be relatively short.
“We don’t know how that happened. That’s where James Webb would be very helpful”, Jahnke further said. He and his team will look at what happens to galaxies in the parts where some of the earliest “black holes” formed. Have they not changed their appearance after several billion years? Or is it very different? For example does it get very stiff?
That could be a very good clue about all the “black holes” of enormous mass.
Important information from James Webb
Jahnke said, “I also firmly believe that we will get very surprising information, both about the ‘black hole’ itself, and about its initial phase. Or also other related fields.”
He added that he was also glad that he didn’t know all the answers by now. “Otherwise it wouldn’t be fun anymore.” Of course, James Webb provides far more information about the Big Bang, and “black holes.”
Everyone wants to know: Where am I from? where are you going? This is certainly a very long story with very little development regarding the universe. But that is what Knud Jahnke and his team try to understand down to the last detail. (ml/as)
See also Video ‘Scientists Get Visual of the Black Hole at the Center of the Milky Way’:
(it/it)
