Published: Thu, August 31, 2017
Sci-tech | By Carrie Guzman

Researchers Have Found 15 New "Cosmic Whistles" Unlike Any We've Detected Before

Researchers Have Found 15 New

First detected with the Parkes Telescope in Australia, fast radio bursts have now been seen by several radio telescopes around the world. FRBs are basically radiant emissions from distant galaxies. In 2016, managed to localize the signal source - a dwarf galaxy that is removed from the Earth at a distance of about three billion light years, mass of the Sun 40-70 million times, but 10 times smaller and a thousand times lighter than the milky Way.

Scientists with Breakthrough Listen say they've found 15 fast radio bursts, or FRBs, from a deep space "repeater" called FRB 121102.

Backed by Mark Zuckerberg, Stephen Hawking, and the billionaire entrepreneur Yuri Milner, The Breakthrough Listen initiative was able to record these unusual signals thanks to the Green Bank Telescope, in West Virginia, the Parkes Radio Telescope in Australia, and the Automated Planet Finder of the Lick Observatory, in Mt Hamilton, California.

An Indian scientist recently discovered 15 repeating radio bursts emitted by a dwarf galaxy after observing it for five hours.

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Breakthrough Listen used instruments at the Green Bank Telescope in West Virginia to observe that location over 5 hours on Saturday, detecting 15 bursts over the entire 4 to 8 GHz frequency band, the organization said in a news release.

Breakthrough Listen is a global astronomical initiative launched in 2015 by Internet investor and philanthropist Yuri Milner and cosmologist Stephen Hawking in search for evidence of technological life in the Universe. In 2015, scientists confirmed the dwarf galaxy to be the first to send repeating pulses, and hence excluding theories of the origins of the bursts that accounted for the catastrophic obliteration of the progenitor.

"As well as confirming that the source is in a newly active state, the high resolution of the data obtained by the Listen instrument will allow measurement of the properties of these mysterious bursts at a higher precision than ever possible before", said the Breakthrough Listen statement.

"We clearly have much more to learn about FRB 121102, and FRBs in general", Siemion told Gizmodo. A series of unexplained radio signals has been discovered coming from a source in a galaxy three billion light years away. "It should be noted that they can still be valid for other FRBs". The randomness of their appearance in a so-short period convert them in such a mystery, even scientists believed at the beginning that they were just glitches in one of the radio telescopes, instead of real signals coming from the space and being heard by the instruments. Astronomers have now detected over 150 "high-energy pulses" from FRB 121102, which was discovered in 2012 and identified previous year as coming from a dwarf galaxy. Each of the 15 pulses lasted 300 milliseconds. But nobody knows for sure, and the real source might be none of the above. "Life on Earth consisted of only single-celled organisms, and it would be another billion years before even the simplest multi-cellular life began to evolve".

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