Friday, November 3, 2017

DISCOVERY OF DUST BELTS AROUND PROXIMA CENTAURI

DISCOVERY OF DUST BELTS AROUND PROXIMA CENTAURI astronomer at the Institute of Astrophysics of Andalusia in Spain, said in a press release https://www.eso.org/public/news/eso1735/?lang Proxima Centauri, the star closest to our Sun, is known to host at least one terrestrial planet candidate in a temperate orbit. Here we report the ALMA detection of the star at 1.3 mm wavelength and the discovery of a belt of dust orbiting around it at distances ranging between 1 and 4 au, approximately. Given the low luminosity of the Proxima Centauri star Proxima Centauri is already known to have one Earth-sized world around it, and now astronomers have detected dust belts that could be an indication of more. “The dust around Proxima is important because, following the discovery of the terrestrial planet Proxima b, it’s the first indication of the presence of an elaborate planetary system, and not just a single planet, around the star closest to our sun https://www.eso.org/public/archives/releases/sciencepapers/eso1735/eso1735a.pdf

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