Protoplanetary disk structure is a sign of the birth of a new planet

The structure of the protoplanetary disk is a marker of the birth of a planet. Observations of the 20 protoplanets surrounding the young star show their structural similarities.

The similarity of the structure between the protoplanets seems to have succeeded in forming because of the presence of new planets around them.

The scientists who made these observations aimed to study the various features of the protoplanetary disk and their speed at forming a new planet.

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Getting to Know the Structure of the Protoplanetary Disc

Planets are one of the most important objects in the universe. In general, the planet will rotate about its main star.

In the world of astronomy, there is a term called exoplanet. This term refers to the planets that are outside the Sun’s solar system.

After all, planets will form at very different rates. For example, Earth and Jupiter have different constituent materials.

The question that often arises is the special feature of being able to recognize when a planet is formed from young stars.

Based on existing theories, planets will form from accretion or accumulation of dust and gas in the protoplanetary disk.

It’s a patch of gas and dust that surrounds a young star. The process begins with a coalition or coalescing of dust that forms larger rocks until they eventually become planets.

The biggest challenge in the process of planet formation is planetesimals or the forerunners of planets.

When the planet is formed in the form of rock or the core of a giant planet, the agglomeration of small particles will merge into planetesimals.

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Youngest Protoplanet Ever Detected

An international research team discovered a new planet that is so young. In fact, the planet has not yet emerged from the womb of matter in which it was formed.

Interestingly, the object is the youngest protoplanetary disk structure ever discovered to date.

The location of the protoplanets and the pattern of matter around them suggest that alternative methods of planet formation may be at work.

The findings were published in the journal Nature Astronomy on April 4, 2022. NASA’s Hubble Space Telescope has captured the shape of the planet.

Planets form in protoplanetary disks that have different spiral structures. The protoplanet is also seen revolving around a young star about 2 million years old.

Astronomers then gave the planet its official name, namely AB Aurigae b. This planet is nine times larger than Jupiter.

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Uniquely, AB Aurigae b orbits its parent star at a distance of 8.6 billion miles, so it takes a very long time. Scientists also argue that the planet was formed due to the instability of the disk.

It also runs counter to the widely accepted expectations of planetary formation by the core accretion model.

This discovery is strong evidence that giant planets can form from the instability of the protoplanetary disk structure. (R10/HR-Online)

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