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Formation of Red Dwarf Exoplanets

10 Mar 2021, 14:00 UTC
Formation of Red Dwarf Exoplanets
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Title: Rapid Formation of Super-Earths Around Low-Mass StarsAuthors: Brianna Zawadzki, Daniel Carrera, Eric FordFirst Author’s Institution: Department of Astronomy and Astrophysics and Center for Exoplanets & Habitable Worlds, The Pennsylvania State University, PA, USAStatus: Accepted for publication in MNRAS (open access on arXiv)
In recent years, the discovery of thousands of exoplanets – planets that reside outside our Solar System – has revolutionised our understanding of the formation and evolution of planetary systems. The bulk of these discovered exoplanets orbit Sun-like stars, yet fewer studies have focused on how planets form around low-mass stars such as red dwarfs (also called M dwarfs). TRAPPIST-1, a compact star system that made waves in 2017, is notable for containing several Earth-like planets orbiting in the star’s habitable zone. Around 80% of all stars in our galaxy are red dwarfs, making them extremely important in the search for habitable planets, yet their low luminosities make exoplanets hard to detect (for more, see this article and this Astrobite on detection methods). This is where NASA’s Transiting Exoplanet Survey Satellite (TESS) comes in; its highly sensitive instruments are expected to detect hundreds of exoplanets in orbit around red dwarfs (hereafter M dwarf planets). The authors of ...

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