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K stars are more likely to host existing exoplanets

March 8 (UPI) – Researchers have called K-stars "Goldilocks-stars". According to a new study, K-stars are more likely to host exoplanets than other types of stars. If life is to be found outside the planet, the new research suggests K-stars is where astronomers should look. K stars are orangic stars that register a little colder than the sun. There are billions of stars in the universe. Astronomers looking for signs of alien life can scarcely scratch the surface of the universe's star population. The new research promises to limit astronomers' search parameters. As detailed in the Astrophysical Journal Letters, K-stars have several advantages. They live a long time, giving the surrounding planets plenty of time for the development of life. More importantly, K-stars have less electromagnetic turbulence. The larger, more frequent sunspots produced by M-stars can remove the atmosphere of inner planets and eliminate the chance of evolution of life. "I think that K-stars are in a" sweet spot "between Sun analog stars and M-stars," said Giada Arney, a planetary scientist at NASA's Goddard Space Flight Center, in a press release. Scientists Developed Models for predicting which biosignatures can look like in the atmosphere of an exoplanet that orbits K star, Because oxygen and methane normally destroy each other, their simultaneous atmospheric presence suggests that some type of process &#821 1; possibly biologically – continuously produces the two gases. Oxygen and methane can be difficult to detect from thousands of light-years away, but the models created by Arney and her…

March 8 (UPI) – Researchers have called K-stars “Goldilocks-stars”. According to a new study, K-stars are more likely to host exoplanets than other types of stars.

If life is to be found outside the planet, the new research suggests K-stars is where astronomers should look. K stars are orangic stars that register a little colder than the sun.

There are billions of stars in the universe. Astronomers looking for signs of alien life can scarcely scratch the surface of the universe’s star population. The new research promises to limit astronomers’ search parameters.

As detailed in the Astrophysical Journal Letters, K-stars have several advantages. They live a long time, giving the surrounding planets plenty of time for the development of life. More importantly, K-stars have less electromagnetic turbulence.

The larger, more frequent sunspots produced by M-stars can remove the atmosphere of inner planets and eliminate the chance of evolution of life.

“I think that K-stars are in a” sweet spot “between Sun analog stars and M-stars,” said Giada Arney, a planetary scientist at NASA’s Goddard Space Flight Center, in a press release.

Scientists Developed Models for predicting which biosignatures can look like in the atmosphere of an exoplanet that orbits K star, Because oxygen and methane normally destroy each other, their simultaneous atmospheric presence suggests that some type of process &#821

1; possibly biologically – continuously produces the two gases.

Oxygen and methane can be difficult to detect from thousands of light-years away, but the models created by Arney and her colleagues showed that oxygen-methane biosignatures would be more evidence of the atmosphere of exoplanets in the K-star system.

“When you put the planet around a K-star, oxygen does not destroy methane so fast, so more can it build up in the atmosphere,” says Arney. “It is because the K-star’s ultraviolet light does not generate high-reactive oxygen gases that destroy methane as easy as a sun-like star. “

Because K-stars are dimmer, the exoplanet should pave them more easily. In their new paper declarations in K-star planets – published this week in the Astrophysical Journal – the authors identified several nearby K-stars that would examined during future astronomical investigations.

“I think some nearby K-stars like 61 Cyg A / B, Epsilon Indi, Groombridge 1618 and HD 156026 may be particularly good targets for future biosignature searches,” says Arney. , id) {var js, fjs = d.getElementsByTagName (s) [0] if (d.getElementById (id)) returns; js = d.createElement (s); js.id = id; js.src = & # 39; https://connect.facebook.net/en_US/sdk.js#xfbml=1&version=v3.2&appId=130795020312660&autoLogAppEvents=1&#39 ;; fjs.parentNode.insertBefore (js, fjs);} (document, & # 39; script & # 39 ;, & # 39; facebook -jssd & # 39;));
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