The Chinese Academy of Sciences has discovered the formation mechanism and orbital characteristics of short-cycle Earth-like planets outside the solar system.

Original title: Chinese scientists found short-cycle Earth-like planetary formation mechanism Xinhua News Agency, Nanjing, February 24 (Reporter Wang Wei ) reporter 24 from the Chinese Academy of Sciences Zijinshan Observatory was informed that the Chinese Academy of Sciences Planetary Science Key Laboratory, Zijinshan Observatory Jijiang Hui researcher led by the scientific research team in a new study, found the formation mechanism and orbital characteristics of short-cycle Earth-like planets outside the solar system.
study is of great significance to understanding the formation and evolution of planetary systems.
-cycle Earth-like planets are exoplanets that are close to stars and have a mass comparable to Earth's.
more than one-tenth of the more than 3,500 exoplanets currently found in the international astronomical community are short-cycle Earth-like planets.
Because they are so close to the stars, their transit cycles typically do not exceed 50 days, some of which are as far away from the stars as even one-tweed twentyths of the Earth's day, and only about 10 days away.
questions that astronomers have been exploring about the characteristics of such planets and why they are so close to stars.
, researchers conducted a large number of numerical simulations and modelings in the latest study.
study found that short-cycle Earth-like planets were not always close to stars in the first place, and their formation experienced an outward-inward migration in orbit.
the migration process, these short-cycle Earth-like planets themselves are growing in mass, eventually stabilizing at a time comparable to Earth's.
In addition, further orbital cycle studies have shown that approximately 17 per cent of planetary systems consisting of three Earth-like planets can be stabilized at a time when the ratio of planetary cycles is close to 4:2:1.
study not only helps to understand the formation mechanism and orbital characteristics of short-cycle Earth-like planets, but also further expands to explain the formation and evolution of other similar planetary systems.
For example, researchers have discovered in this numerical simulation that a planetary system formed by a Jupiter-mass planet, an Earth-like planet, and a Saturn-mass planet can also stabilize at a time of nearly 4:2:1.
also look forward to finding examples of such planetary systems in future astronomical observations.
, " said Ji Jianghui.
results were published online online in the monthly journal of the Royal Astronomical Society.
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