The new work led by Matt Clement of Carnegie reveals the original location could be Saturn and Jupiter. These findings help refine our understanding of the Solar System̵7;s unusual architectural determinants, including the launch of an additional planet between Saturn and Uranus, ensuring that only small, rocky planets, like Earth, form inside Jupiter.
In our youth, our Sun was surrounded by a rotating disk of gas and dust from which the planets were born. The orbits of the originally formed planets were thought to be close together and circular, but gravitational interactions between larger bodies disturbed the arrangement and caused the tiny giant planets to rapidly change, Create the profile as we see it today.
“We now know that there are thousands of planetary systems in our Milky Way,” Clement said. “But it turns out the arrangement of the planets in our Solar System is very irregular, so we are using the models to reverse engineer and replicate its formation processes. like trying to figure out what happened in a car crash after the truth – how fast the cars went, in which directions, etc. “
Clement and his co-authors – John Chambers of Carnegie, Sean Raymond of the University of Bordeaux, Nathan Kaib of the University of Oklahoma, Rogerio Deienno of the Southwest Research Institute, and André Izidoro of Rice University – conducted 6,000 tissues. The evolution of the Solar System reveals a surprising detail about Jupiter and Saturn’s early relationship.
Jupiter in the early days was thought to orbit the Sun three times for every two orbits Saturn completed. But this arrangement could not adequately explain the configuration of the giant planets we see today. The team’s models show that the ratio of the two Jupiter’s orbit to one of Saturn produces the same results as our familiar planetary architecture.
“This indicates that while our Solar System is a little odd, it’s not always the case,” Clement, who is presenting the group’s work at the Planetary Science Division’s virtual meeting American Astronomical Association today. “Furthermore, now that we have established the effectiveness of this model, we can use it to help us look at the formation of planets on the ground, including their own. and perhaps to inform our ability to find similar systems elsewhere that may have potential for storing life. “
The model also shows the positions of Uranus and Neptune is shaped by the mass of the Kuiper belt – an icy region on the edges of the Solar System consisting of dwarf planets and the planets where Pluto is the largest member – and by a giant ice planet that was eliminated in the early Solar System.
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Matthew S. Clement et al, Born eccentric: Constraint on the precarious pre-orbitals of Jupiter and Saturn, Icarus (Year 2020). DOI: 10.1016 / j.icarus.2020.114122
Provided by Carnegie Institute of Science
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