Success reduces the search for intelligent life in the Milky Way

Success reduces the search for intelligent life in the Milky Way

Credit: University of Manchester

An analytical breakthrough that could significantly improve our chances of finding extra-physical life in our galaxy has been discovered by a team at the University of Manchester.


In a new study published today in Monthly Notice of the Royal Astronomical Society, Reanalysis of existing data, showing that researchers represent a new milestone in the search for extra-physical intelligence (Seti).

The collaborative research team has dramatically expanded the search Extra-terrestrial life From 1,400 stars to 280,000 – an increase in the number of stars analyzed by a factor of 200.

The results suggest that less than 0.04% of Starr systems are likely to host advanced civilizations with equal or slightly more advanced radio technology than 21st century humans. As well as improving boundaries Nearby starsFor the first time, the team actually owns the most distant stars along the boundaries that would require even more powerful transmitters to be able to detect any possible life inhabiting the outer boundaries of the galaxy.

Researchers say that analysis can only detect intelligent and technologically advanced civilizations that use Radio waves As a form of communication – they could not detect, for example, “normal” life or non-technical civilization.

Credit: University of Manchester

The team is led by Bart Woldersack-Sroka, a Masters student at the University of Manchester in the UK, and his mentor, Professor Michael Garrett, and the director of the Breakthrough Listening Initiative, Dr. Made by Andrew S Simian, the spread has been given the best limits ever. Fake radio transmitters, double technico-signature, airwaves.

Completing a catalog developed by the European Space Agency (ESA) Gaia spacecraft, which measured distances from one billion stars, the researchers recalculated the limits on the propagation of transmitters around additional stars in the field of view of the radio telescope. By selecting distances (up to approximately 33,000 light-years) far closer than the actual sample of nearby stars, they could increase the number of stars studied from 1,327 to 288,315.

Team leader Mike Garrett has always been concerned that in addition to the main goal, Setty’s discoveries generally do not take into account the many other cosmic objects that fall into the realm of the sky. According to Garrett, Gaia has changed all of this: “Knowing the locations and distances of these additional resources,” he says, “our ability to limit the spread of our own galaxy and even further extra-Earth intelligence.” Eligibility has improved a lot. We look forward to future STIs.

“Our results help push the breadth of results within meaningful limits that we can create ourselves using twentieth-century technology,” said Voloderzak-Sroka.

“We now know that less than one of the 1600 stars is close to 330 Light year Host transmitters are a few times more powerful than the strongest radar we have on Earth. The nature of the world with even more powerful transmitters that we can produce at present should still be very small. “

The study of many stars has enabled Voldorsk-Saroka to provide some of the toughest limits to date on the propagation of powerful radio transmitters in this region of our galaxy. In addition, for the first time, the team has been able to do this as a function of hard work, the type-extended sample is not only a wide range of the main-order stars of many companies, but it Including The stars And white dwarfs.


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More information:
Hear the Near Star Survey on Farm Goods as Rising Breakthroughs, RXIV: 2006.09756 [astro-ph.IM] arxiv.org/pdf/2006.09756.pdf

Reference: Breakthrough reduces search for sensible life in the Milky Way (September 2, 2020) https://phys.org/news/2020-09-breakthrough-narrows-inte Fightnt- Life-milky.html Received

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