The James Webb telescope will replace the Hubble telescope, operational later this year.
REPUBLIKA.CO.ID, JAKARTA – The James Webb space telescope will start operating in late 2021. With this telescope researchers will be able to reconstruct what happened billions of years ago.
The James Webb telescope can see further into space than the Hubble telescope. The cold mirror is 6.5 meters in diameter, and it is much larger than the Hubble mirror. The James Webb telescope consists of 18 segments, which are covered in very thin gold.
Dominican astrophysicist Wylezalek and his team from the Institute of Astrophysics at the University of Heidelberg are among the first to conduct research with the telescope. They will begin research as soon as the new telescope starts operating.
“If you study astronomy, people are increasingly aware that what we see in the sky with the naked eye is only a small part of what is in the sky,” Wylezalek said, adding, “The hair on my neck stands up every time I notice it.”
Dominica Wylezalek is interested about the black hole that is at the center of all galaxies. If a black hole devours matter, it must release a strong wind of radiation afterward. These winds can encourage the formation of stars in galaxies, or stop them.
Black holes influence galaxies
In the field of astrophics, people research how black holes are related to galaxies. “If you look at the difference in size between a black hole with a large mass, and the galaxy in which it is located, the difference in size is very large,” he said.
“In their growth phase, black holes have enormous influence over entire galaxies.” That’s what astrophysicists want to know.
James Webb’s new telescope will help research the galaxies. These telescopes can look into the past 12 billion light years, when black holes were still gobbling up even more material, causing even stronger winds of radiation.
How it affects the surrounding environment can be seen from the data collected with the help of a telescope. The data is not two-dimensional data, and is not a piece of the sky. It’s three-dimensional data. This means that behind each pixel is a specific time spectrum. “
James Webb is ready to launch at the end of 2021
The end of 2021 the new telescope will begin its mission. “The date is getting closer, maybe I will start dreaming. Now I always have nightmares, the telescope exploded,” said Dominica Wylezalek with a laugh.
Never before had a satellite been sent carrying so many objects. It will take two weeks to prepare the telescope for use, and there can be no wrong steps. Half a year after that, the telescope will be ready to uncover the secrets of the universe.
source: https://www.dw.com/id/james-webb-teliti-galaksi-sambil-tengok-masa-lalu/a-57459689
sumber : DW
– .
