Friday, July 1, 2016

Hubble reveals images of the birth of stars in the galaxy Kiso 5639 – lagranepoca

Birth of stars in dwarf galaxy Kyso 5639. Credit: NASA, ESA, and D. Elmegreen (Vassar College)

The Hubble Space Telescope captured a spectacular NASA firestorm that illuminates one end the dwarf galaxy Kiso 5639 and is part of the birth of new stars, unveiled Hubblesite.org.

5639 Kiso observations through the telescope have revealed the stellar content and bright pink glow of hydrogen at one end of the galaxy. These originated from an explosion of new stars in a region which measures 2,700 light years across, which makes hydrogen clouds shine. According to Hubblesite, the stars are grouped in large clusters that formed around a million years ago whose mass is equivalent to almost one million suns.

The astronomers suggest that this frenetic star birth is caused rain intergalactic gas at one end of the galaxy. According to simulations by Daniel Ceverino, Centre for Astronomy at the University of Heidelberg in Germany and other members of his team, it is believed that a filament gas dropped a large piece of matter in the galaxy, he fueled vigorous star birth, explains the website of the US space agency.

Kyso 5639 is a rare, nearby example of galaxies elongated generally occur in abundance at great distances. It has the shape of a flattened cake and resembles a rocket, burning with a bright head and a long tail and full of stars. Its elongated shape, this type of galaxies are known by the name of tadpoles and according to the observations made on the principle of the universe, it is believed that approximately 10% of galaxies has this same way.

studies show that these galaxies the gas composition is not uniform. Kiso 5639, the glowing gas in the head of the galaxy is deficient in heavy elements (called “metals”) such as carbon and oxygen, the rest of the galaxy. Astronomers believe that this new training event is triggered stars when the galaxy increases the primordial gas in their environment, as intergalactic space contains more pristine, hydrogen-rich gas says Hubblesite.

“The stars They are composed mainly of hydrogen and helium, but other heavy elements cooked. When stars die, they release their heavy elements and enrich the surrounding gas, “according to NASA on its website.

The Hubble images also show giant holes scattered along the head of the galaxy due numerous explosions of supernovas, giving an appearance of Swiss cheese.

Debra Elmegreen, head of research at Vassar College in Poughkeepsie, New York hopes that in the future other parts of the galaxy will join the artificial, according to Nasa.gov fires, since “the galaxies rotate as Kiso 5639 continues to rotate, another part of the galaxy may receive an infusion of new gas of this filament and instigate a new round of star birth,” he said.

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