It turned out that the planets the size of the Earth are much larger than previously thought

An international team of scientists conducted a study to find out why, over many years of space

research they discovered so few planetsearth type. It turned out that they are almost impossible to see in the light of double star systems and in fact there are many more such exoplanets than previously thought. The scientists report their findings in a paper published in the arXiv preprint repository.

Observations were made using two telescopesGemini Observatories located in Hawaii and Chile. The researchers studied 517 stars with previously discovered exoplanet candidates located within 1,630 light years. 

It turned out that 73 stars have stellarcompanions, while the average distance between both stars reaches one hundred astronomical units (one astronomical unit is equal to the distance from the Sun to the Earth). The distance between stars in systems that host exoplanets is slightly greater than in commonly observed binary systems. The study results suggest that a population of Earth-sized planets could be hiding in binary systems and go undetected using the transit method used by TESS and others telescopes.

Recall that the transit method (transit method) -a method of searching for exoplanets, based on the detection of a drop in the luminosity of a star during the passage of a planet in front of its disk. This photometric method allows you to determine the radius of the planet, while the above methods provide information about the mass of the planet.

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