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Astronomers Return to 13 Billion Years and Meet Two Galaxy



Artist impression on merge galaxies.
Illustration: National Astronomical Observatory of Japan.

Scientists have seen one of the farthest (and hence the youngest) for example

The Japanese research team saw a distant source of light called B14-65666 with the Atacama Large Millimeter / submillimeter A telescope array in Chile. Higher data resolution from light emitted by oxygen and carbon ions suggested researchers that the object could be a single galaxy rapidly forming new stars as a result of a collision.

Thanks to the fact that light has the highest speed, farther distance shows information about the earlier time. Scientists therefore re-teach the history of the universe, how it developed and ended in view of this method today, by observing the farthest thing.

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Scientists are familiar with B14-65666, something we can see that 13 billion years ago. Data from the Hubble Space Telescope has revealed that it looks like two lobes, separated by approximately 6,500 to 13,000 light-years-the Milky Way, our home expanse, has over 100,000 light years, for comparison. So a group headed by Takuya Hashimoto, a postdoctoral researcher at the Japan Society for Promotion of Science and Waseda University, looked at the thing that ALMA uses, at night in 2016, 2017, and 2018.

In particular, researchers watched the radiation emitted by specific carbon and oxygen ions as well as radiation from dust. They confirmed that the matter was actually arranged in two clusters and estimated total mass of matter around 770 million times the mass of the Sun (which is many times greater than our own Milky Way). They also foretold that it generates approximately 200 solar mass values ​​per star per year.

Image: ALMA (ESO / NAOJ / NRAO), NASA / ESA Hubble Space Telescope, Hashimoto et al

the object should be the result of two smaller galaxies, which experience a starburst-a quick formation period-as a result.

The galaxy is interesting for more than just how old it is, though. The fact that researchers have discovered the signal from dust as well as certain oxygen and carbon spectral lines means that it may be a promising target for followup research in new telescopes. According to the paper, this is the first such space in this distance with a complete set of dimensions of these features. The researchers will try to look at the lines of the phantom that represent other elements as well, to get an idea of ​​the kind of thing that makes up the universe.

But not just an early example of the inclusion of the galaxies, and there is evidence for some even further distances as well. "The very early universe seems to be an exciting time to become a space, with a lot of violent collisions and no longer the appearance of the structures we have been commanded later," professor Dan Marrone's professor at University of Arizona, Gizmodo said.

He himself teaches oxygen as a useful source of spectral lines for these distant objects, citing the many dimensions of these ions for this epoch. "There should be many exciting things happening in this space, even before the JWST."

Scientists think that mergers are an important part of building space. The galaxies appear to be far apart, and in return at the right time, adds some truth to that theory.

This article was updated to include Dan Marrone's commentary form.


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