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The National Aeronautics and Space Administration (NASA) spotted a cluster of small stars and star-forming clouds emerging from the arm of Sagittarius in Milky Wayspanning about 3,000 light years, it is the first primate structure to be identified with a completely different orientation than the arm.
Details on the breakdown of the Milky Way
Until now it was the understanding of the form galaxy It is based on indirect measurements of celestial features within the Milky Way and inferences from structures observed in other galaxies inhabiting the universe.
The Milky Way began to form relatively soon after the Big Bang Which formed the beginning of the universe about 13.8 billion years ago.
I have Scientists in Astronomy A rough idea of the size and shape of the Milky Way’s arms, but many are still unknown, they cannot see the full structure of our original galaxy because Earth is inside.
NASA uses the Spitzer space telescope
NASA used its Spitzer Space Telescope to detect … Infrared rays which can penetrate these clouds, while blocking visible light (which the human eye can see).
Small stars are thought to align closely with the shape of the arms they contain; To get a 3D view of the arm part, the scientists used the latest data from the Gaia expedition European Space Agency (ESA) to measure exact distances from stars.
The data collected revealed that the long, slender structure attached to Sagittarius’ arm consists of young stars moving at roughly the same speed and in the same direction across Space.
Michael Cohen, astrophysicist at Caltech and lead author of the new research paper, said the main property of spiral arms is
As it wraps tightly around the galaxy.
This property is measured by the angle of inclination of the arm, a circle has an inclination angle of 0 degrees, and the more the spiral opens, the greater the angle of inclination.
Most models of the Milky Way suggest that the arched arm forms a spiral with an inclination of around 12 degrees, but the structure examined really stands out at around 60 degrees.
Similar structures, sometimes called spurs or feathers, protrude from the arms spiral galaxies Others, for decades, have questioned whether the spiral arms of the Milky Way are also dotted with these structures, or whether they are relatively smooth.
The Milky Way, with a spiral and central structure, is made up of stars, and includes 100 to 400 billion stars, including the sun.
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