Aliens calling? First potential radio sign from exoplanet detected


By: PTI |

December 18, 2020 7:19:28 pm





The group led by researchers from the Cornell College within the US additionally noticed different potential exoplanetary radio-emission candidates within the constellation Most cancers and Upsilon Andromedae programs( Picture supply: Cornell Chronicle)

A world group of scientists has collected the primary doable radio sign from a planet past our photo voltaic system, emanating from an exoplanet system about 51 light-years away. Utilizing the Low Frequency Array (LOFAR), a radio telescope within the Netherlands, the researchers uncovered emission bursts from the Tau Bootes star-system internet hosting a so-called scorching Jupiter, a gaseous large planet that may be very near its personal solar.

The group led by researchers from the Cornell College within the US additionally noticed different potential exoplanetary radio-emission candidates within the constellation Cancer and Upsilon Andromedae programs.

Nonetheless, the examine printed within the journal Astronomy & Astrophysics discovered that solely the Tau Bootes exoplanet system exhibited a major radio signature, a singular potential window on the planet’s magnetic area. “We current one of many first hints of detecting an exoplanet within the radio realm,” mentioned Cornell postdoctoral researcher Jake D Turner. “The sign is from the Tau Bootes system, which incorporates a binary star system and an exoplanet. We make the case for an emission by the planet itself, he mentioned.

If confirmed via follow-up observations, the researchers mentioned, this radio detection opens up a brand new window on exoplanets and offers a novel method to look at alien worlds which might be tens of light-years away. Observing an exoplanet’s magnetic area helps astronomers decipher a planet’s inside and atmospheric properties, in addition to the physics of star-planet interactions, mentioned Turner.

Earth’s magnetic area protects it from photo voltaic wind risks, maintaining the planet liveable. “The magnetic area of Earth-like exoplanets might contribute to their doable habitability by shielding their very own atmospheres from photo voltaic wind and cosmic rays, and defending the planet from atmospheric loss, Turner mentioned.

Two years in the past, Turner and his colleagues examined the radio emission signature of Jupiter and scaled these emissions to imitate the doable signatures from a distant Jupiter-like exoplanet. These outcomes grew to become the template for looking out radio emission from exoplanets 40 to 100 light-years away

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