Monday , August 2 2021

Discover thanks to the ALMA protostra with a deformed disk formed thousands of years ago Technology



Use of Atacama Large Milimeter / Ponilimetar Area (ALMA) In Chile, researchers for the first time spotted a defective disk around a young prototype, formed a few tens of thousands of years ago.

This means that the incompatibility of planetary orbits on many systems, including ours The solar system, may have their origins in the early disruptions of the planet's proto-planetary disk.

The planets of our solar system orbite around the Sun in planes that are at most 7 degrees unsuitable to the equator of the Sun itself.

After a while it is known that many extrasolar planets (found in planetary systems other than ours) have orbits that are not aligned in one plane or the equator of their central star.

One explanation for this is that some of them may have suffered clashes with other objects in the system, or with the influence of stars passing through or near the system that affect their initial orbits.

However, the possibility remains that the incompatibility of these planets will actually result from the deformation of the cloud in which the star and planets are born.

The latest images of protoplanetary discs, rotating discs for gas and dust in which planets form around a central star have already shown these deformation, but it remains uncertain how early these appear.

A group of researchers from the Pioneer Research Pioneer (CPR) of RICEN and Chiba University in Japan, published in the journal Nature his latest discoveries describing that L1527, a young protostar that is actually inserted into an incubator cloud, has a disc divided into two parts: an inner part that rotates in an airplane and the outside in a different plane.

The disk is very young and still growing. L1527 was found 450 light-years from Earth in the Taurus's molecular cloud and is a good object of study, because its rotational plane is practically aligned with our axis of vision.

According to Nami Sakai, the leader of this study, "these observations indicate that it is understandable that the incompatibility of the orbital plains can be caused by a deformed structure that originates from the earliest stages of the planetary formation. We will need to explore more systems to know if this is common occurrence or not. "

It should be noted that there is still a question that causes these deformations on the disk. Sakai suggests two possible explanations: "One possibility is that the irregularities in the flow of gas and dust in the protostaster cloud are manifested in this way in the disk; another possibility is that the magnetic field of the prototype is in a plane that is different from that of the rotation of the disk, forcing the inner part of the disc to differ from the others. "

Sakai also adds that they hope to fix it Investigations the future cause of deformation on the disk.


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