Helium and hydrogen make up virtually all of Jupiter. The quantities of each roughly match their predicted counterparts in the early solar nebula.
However, it also includes other, heavier elements that astronomers refer to as metals. Although metals make up a very minor portion of Jupiter, their presence and distribution reveal a great deal to scientists.
A recent research suggests that Jupiter's metal distribution and composition indicate that the planet consumed several rocky planetesimals during its early evolution.
Our knowledge of Jupiter's genesis and evolution has changed significantly since NASA's Juno mission arrived at Jupiter in July 2016 and began collecting extensive data.
The Gravity Science instrument is one of the mission's characteristics. Between Juno and the Deep Space Network on Earth, radio signals are exchanged back and forth.
The method monitors Jupiter's gravitational field and provides more information about the planet's makeup.
Jupiter began to develop by absorbing rocky material. The solar nebula's gas began to accumulate quickly after that, and after many millions of years, Jupiter grew to its current size.
But there's a big question mark over the early stages of rocky accretion. Did it gather bigger rocks, such as planetesimals? Or did it accumulate rocks the size of pebbles? The time scales on which Jupiter originated varied depending on the response.
That question was the focus of a recent research. It appears in the journal Astronomy and Astrophysics with the title "Jupiter's inhomogeneous envelope inhomogeneous envelope". Yamila Miguel, an assistant professor of astrophysics at The Netherlands Institute for Space Research and the Leiden Observatory, is the primary author.
Thanks to the JunoCam on the Juno spacecraft, we're becoming used to seeing magnificent pictures of Jupiter. However, everything we perceive is merely superficial. Only the thin 50 kilometers (31 miles) outermost layer of the planet's atmosphere can be seen in all those mesmerizing pictures of the clouds and storms.
The atmosphere of Jupiter, which extends hundreds of kilometers into space, contains the secret to the planet's birth and development.
Jupiter is generally acknowledged to be the Solar System's oldest planet. But researchers are interested in how long it took to form. The goal of the paper's authors was to use Juno's Gravity Science experiment to examine the metals in the planet's atmosphere.
Understanding Jupiter's creation heavily relies on the existence and distribution of pebbles in the planet's atmosphere, which was studied by the Gravity Science experiment.
There was no accurate information on Jupiter's gravity harmonics prior to Juno and its Gravity Science mission.
The scientists discovered that Jupiter's atmosphere isn't uniform as previously believed. Near the planet's core, metals are more abundant than in other layers. The total mass of the metals ranges from 11 to 30 Earth masses.
The researchers built models of Jupiter's interior dynamics using the data they had."In this paper, we assemble the most comprehensive and diverse collection of Jupiter interior models to date and use it to study the distribution of heavy elements in the planet's envelope," the authors write.
Two groups of models were produced by the group. The first collection consists of 3-layer models, and the second set includes dilute-core models.