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Astronomers detect a Gasping New Earth Orbiting a Red Dwarf Star

In recent years, the astronomers have conducted well-work studies on the Red Dwarf Star to find exoplanets in orbit around them. These stars generally have effective temperatures between 2400 and 3700K. In this context, a team of researchers led by Borja Toledo Padrón, a Severo Ochoa-La Caixa doctoral student at the Instituto de Astrofísica de Canarias (IAC), specializing in the search for planets around this type of stars, has discovered a super-Earth orbiting the star GJ 740, a red dwarf star situated some 36 light-years from the Earth.

“This is the planet with the second shortest orbital period around this type of star. The mass and the period suggest a rocky planet, with a radius of around 1.4 Earth radii, which could be confirmed in future observations with the TESS satellite,” explains Borja Toledo Padrón, the first author of the article. The data also indicated the presence of many other planets with an orbital period of 9 years.

The Kepler mission, which is recognized as one of the most successful missions in detecting exoplanets using the transit method. It has till now discovered a total of 156 new planets around the Red Dwarf Star. From this data, it has been estimated that these types of stars harbor an average of 2.5 exoplanets with an orbital period of fewer than 200 days.

Cool stars are also an ideal target for the search for planets via the radio velocity method. This method is although useful in detecting small variations in the velocity of a star. For larger variations, the astronomers or the scientists have not discovered a phenomenon yet. Since the discovery in 1998 of the first radial velocity signal of an exoplanet around a cool star, until now, a total of 116 exoplanets has been discovered around this class of stars using the radial velocity method.

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