New Galaxy Named After Cristiano Ronaldo

Posted: Jun 18 2015, 2:47am CDT | by , in News | Latest Celebrity News

 
New Galaxy Named after Cristiano Ronaldo
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Scientists name new found distant galaxy after soccer sensation Cristiano Ronaldo.

Astronomers at the European Southern Observatory (ESO) have discovered new galaxy and named CR7. ESO says that the nickname for the newly discovered galaxy was inspired by the great Portuguese footballer, Cristiano Ronaldo, who is known as CR7. Ronaldo is known to wear the lucky 7 on his trickot. He also has a CR7 footwear line.

The team discovering CR7 is led by a Portuguese astronomer from the Institute of Astrophysics and Space Sciences. There lies the connection to Ronaldo who is also from Portugal.

Ronaldo is not just getting any old galaxy. The new galaxy is the the brightest distant galaxy discovered yet and has signs of Population III stars. By associating Cristiano Ronaldo to the discovery of this new galaxy, the news spreads outside of the science community, which is a good thing as this is an exciting find.

CR7

Artist’s impression of CR7. Credit ESO

Astronomers have long theorized the existence of a first generation of stars, known as Population III stars that were born out of the primordial material from the Big Bang. All the heavier chemical elements, such as oxygen, nitrogen, carbon and iron, which are essential to life, were forged in the bellies of stars.
These Population III stars would have been enormous, several hundred or even a thousand times more massive than the Sun, blazing hot, and transient, exploding as supernovae after only about two million years. But until now the search for physical proof of their existence had been inconclusive.

The team of astronomers used ESO’s Very Large Telescope (VLT) to peer back into the ancient Universe, to a period known as reionization, approximately 800 million years after the Big Bang. Instead of conducting a narrow and deep study of a small area of the sky, they broadened their scope to produce the widest survey of very distant galaxies ever attempted.

A number of surprisingly bright very young galaxies have been found. One of these, labelled CR7, was an exceptionally rare object, by far the brightest galaxy ever observed at this stage in the Universe. With the discovery of CR7 and other bright galaxies, the study was already a success, but further inspection provided additional exciting news.

The X-shooter and SINFONI instruments on the VLT found strong ionized helium emission in CR7 but — crucially and surprisingly — no sign of any heavier elements in a bright pocket in the galaxy. This meant the team had discovered the first good evidence for clusters of Population III stars that had ionized gas within a galaxy in the early Universe.

“The discovery challenged our expectations from the start,” said David Sobral, “as we didn’t expect to find such a bright galaxy. Then, by unveiling the nature of CR7 piece by piece, we understood that not only had we found by far the most luminous distant galaxy, but also started to realize that it had every single characteristic expected of Population III stars. Those stars were the ones that formed the first heavy atoms that ultimately allowed us to be here. It doesn’t really get any more exciting than this.”

Within CR7, bluer and somewhat redder clusters of stars were found, indicating that the formation of Population III stars had occurred in waves — as had been predicted. What the team directly observed was the last wave of Population III stars, suggesting that such stars should be easier to find than previously thought: they reside amongst regular stars, in brighter galaxies, not just in the earliest, smallest, and dimmest galaxies, which are so faint as to be extremely difficult to study.

Via this ESO report.

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<a href="/latest_stories/all/all/2" rel="author">Luigi Lugmayr</a>
Luigi Lugmayr () is the founding chief Editor of I4U News and brings over 15 years experience in the technology field to the ever evolving and exciting world of gadgets. He started I4U News back in 2000 and evolved it into vibrant technology magazine.
Luigi can be contacted directly at ml@i4u.com.

 

 

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