TESS telescope found an exoplanet in a red dwarf

The scientific team of the mission TESS (Transiting Exoplanet Survey Satellite) has announced the discovery of a new exoplanet. It revolves around the red dwarf LHS 3844, located at a distance of 49 light years from the sun. The mass of the star is 15%, and the radius is 19% of solar. Its surface temperature is estimated at 2700 ° C.
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TESS found periodic changes in the brightness of LHS 3844, corresponding to transits through its body disk with an orbital period of 11 hours. Analysis of the photometric data collected by the telescope showed that the radius of this object is one third larger than the radius of the Earth. Thus, we are talking about the stone body.
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The orbit of an exoplanet, designated LHS 3844 b, passes at a distance of only 0.006 a. e. (900 thousand km) from LHS 3844. Most likely, it is in tidal capture in relation to the star and is always turned towards it by the same hemisphere. According to astronomers, the equilibrium temperature of the day side of the exoplanet should be 530 ° C.
This is the second exoplanet found by the TESS telescope after the start of regular observations of the sky.The main objective of the mission is to search for similar bodies from the stars closest to the Sun Special emphasis will be placed on observations of red dwarfs. These stars make up about 75% of the total stellar population of the Milky Way.
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It is worth noting that LHS 3844 b has one of the shortest periods of circulation among all known exoplanets today. In the course of further observations, astronomers will try to establish whether it has some kind of atmosphere, or whether it was blown off by a star in the billions of years of the system’s existence.

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