The stream of stars C-19 is so stunning, stretching across the expanse of the night sky. This is the remnant of an ancient globular cluster. Then it contains stars with low metal levels.
Meanwhile, the element content is 2,500 times less heavy than the sun. Although invisible to the naked eye, it is roughly 30 times the width of a full moon.
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Discovery of the C-19 Stream of Stars in the Milky Way
Citing the Sci-news page, most stars, like the sun, are formed in the Milky Way galaxy.
However, according to Dr. Jonay Gonzalez, astronomer at the Instituto de Astrofísica de Canarias, a fraction of the stars and star clusters in the Milky Way can be found in the vicinity. Then brought into smaller galaxies.
The stellar stream C-19 orbits about 20,000 light-years from the galactic center. Then about 90,000 light years at its furthest point.
Dr. Gonzalez and colleagues initially spotted C-19 in astrometric data from Gaia Early Data Release 3.
When observed with the Gemini North telescope from the GRACES instrument, C-19 is the side of the globular cluster. It is not yet known whether the globular cluster contains a small amount of heavy elements.
The problem is that there are theories that hypothesize that they cannot form at all. This is in accordance with the assumption of Dr. Nicolas Martin, astronomer at the Strasbourg Astronomical Observatory.
Observations show that ancient globular clusters were formed from the generation of young stars. Then make the flow of stars C-19 as an extraordinary relic since the formation of the first star group.
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New Candidate Star Stream
The team uses a detailed map of the location and movement of the stars. Created from unprecedented Gaia satellite data. The European Space Agency (ESA) launched it in 2013.
Then the team used a new algorithm to isolate the rare clusters of stars. As it moves together through the Milky Way.
They discovered the structure of the new candidate star stream C-19. The cluster they found slowly lost its star as it moved through the Milky Way. So that all that remains is a stream of stars in the sky.
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Map of the Galaxy
From the remains of the past, it is very important to get an idea of the formation of stars in the young universe. In addition, to determine the construction of the first star structure.
The Gaia satellite map is constantly improving. The reason is, combining it with research like Pristine.
Pristine systematically maps the sky to measure the relative amounts of heavy elements in millions of stars.
Then on further observations, the team confirmed the classification of star clusters. It can even find more accurate values for the heavy element fraction so low in its star.
This value is only 0.04% of the number of elements in our sun. So, much less than in any other group of stars in this universe.
That way, will result in more amazing discoveries. Including the discovery of the extremely metal-poor C-19 stellar stream in the Milky Way. (R10/HR-Online)
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