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Many Worlds: Multiple Super-Earths Discovered Around a Nearby and Unusually Quiet Red Dwarf

29 Jun 2020, 21:24 UTC
Many Worlds: Multiple Super-Earths Discovered Around a Nearby and Unusually Quiet Red Dwarf
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Title: A multiplanet system of super-Earths orbiting the brightest red dwarf star GJ 887Authors: S. V. Jeffers, S. Dreizler, J. R. Barnes, et. al.First Author’s Institution: Institut für Astrophysik, Georg-August-Universität, Göttingen, GermanyStatus: Published in Science [closed access]An international team of researchers have discovered two, and possibly three, ‘super-Earth’ sized exoplanets around one of our closest neighbours – a bright and unusually quiet red dwarf star. The team’s observations were obtained as part of the Red Dots #2 project, which aims to discover the nearest terrestrial sized exoplanets to the Sun which they hope will provide the best targets for investigating the atmospheres of small, rocky exoplanets and searching for signs of life outside the Solar System.Figure 1: An artist’s impression of the Gliese 887 system with the two newly discovered super-Earths orbiting a bright red dwarf star only 11 light-years from the Sun. Image credit: Mark Garlick.Gliese 887 is a nearby red dwarf (or M dwarf) star about half the size of our own Sun. Red dwarfs are the smallest, coolest, and by far the most common type of main sequence star in the Galaxy and are found in abundance near the Earth. At a distance of only about 11 ...

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