The artist’s impression combines quartz. We have seen clear evidence that galaxies can collide and grow in the early universe. Scientists captured two quasar-powered galaxies fueled by a supermassive black hole to merge in the Cosmic Dawn just 900 million years after the Big Bang.
The first collision found during this period is a pair of quartz. The period of intense cosmic formation after the Big Bang, this period must be positively solved by the merging of galaxies, but previous studies have only been solitary.
Astronomers are excited and excited to find a discovery that could help prevent more galactic collisions in the cosmic dawn, and now we have an example of what to look for.
Astronomer Yoshishiki Matsuoka from Japan’s Ehime University explained: “The fusion of quartz during reionization has been expected for a long time.” “This is now confirmed for the first time.”
Quartz is the brightest thing in the universe. A supermassive black hole is a massive feeder galaxy: a gargantuan cloud of dust and gas surrounds it, and the black hole is surprisingly positive. This process causes friction and gravity in the cloud to create a large amount of light that burns and causes it to glow.
Scientists believe that when two galaxies merge, quartz can form, causing more material to accumulate in the center of the galaxy. In the last universe, we have seen many evidences of past and ongoing mergers, with two or more black holes at the center of the galaxy in a slow, spiraling collision.
Because of this, and because we found so much quartz in the early universe (partly because it was brighter and therefore easier to see), cosmologists expect a peak in galaxy mergers during the Cosmic Dawn.
This, in turn, will help us understand the early universe, known as the Reionization Period, when intense light ionized nebulous nebulous hydrogen, allowing light to purify and flow freely. But actually finding this compound has proven difficult.
In fact, the discovery was quite accidental. Matsuoka and his colleagues were reviewing data collected by the Subaru Telescope when they noticed something unusual.
“When examining the image of the quartz candidate, I noticed two very similar and very red sources next to each other,” said Matsuoka. “The discovery is just a cautionary tale”.
The red pair on one side can be a bunch of things. For example, light from an object can be split and multiplied by the gravitational force of space-time between the source and the viewer, causing the object to appear twice or more.
So the researchers made a series of observations using the Subaru Telescope and Gemini North, as well as the Atacama Large Millimeter/Submillimeter Array (ALMA).
These observations revealed that the object was not only real and very distant, but also very close to another, separated by 40,000 light years.
The team also found that much of the light emitted by galaxies comes from star formation and the gas bridges connecting them, both of which interact and emerge in the process of merging.
Each appears to contain a black hole about 100 million times the mass of the Sun. That’s huge for the early universe – even the central black hole in the Milky Way is only 4.3 million solar masses.
This is a great discovery and one that promises more to come. Meanwhile, the researchers are trying to analyze the ALMA observations to determine the dust and gas around the two galaxies. The findings will be published in a separate paper. The research was published in The Astrophysical Journal Letters.
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