Wednesday , January 27 2021

Supernatural & # 39; Planet nine & # 39; Actually the outer solar system has a huge ring of scrap?

Picture of the artist of small objects inside the Kuiper belt
Image: E.S.O. / like this. Corners

With the setting of a strange orbital arrangement of objects outside of Neptune, scientists have begun to speculate about the existence of one of the so-called Planet nine-a conceptual large planet in the outer reach of the Solar System. New research suggests that the planet does not need to obtain inert orbit, and the scrape ring has a more reasonable explanation. Critics of the proposed disk say that more evidence is needed.

The enormous Planet nine, sometimes also known as Planet X, is thought to be due to the specific orbit of certain Kuiper Belt Objects, also known as trans-Neptune objects (Tino). Astronomers have documented approximately 30 inconsistent texts in debt-objects, including rhetorical and trendy orbits and strange clustering behaviors. To illustrate this, astronomers have proposed the presence of the planet yet discovered. To work, Planet Nine will have to locate approximately 200 Astronomical Units (AU), or about 18.6 billion miles of sun, and it will be 10 times the mass of the Earth. According to this theory, the gravitational influence of this fabulous planet is "shepherd," or gradually, TNOs are in their observed orbits.

Portrait portrayal of Planet Nine
Image: Caltech / R. Hurt

This week's published research has published an Astronomical Journal which offers an attractive alternative to Planet's nine hypothesis. In order to explain the curious orbital of the Kuiper belt objects, instead of explaining the mysterious planet from the writers of mysterious research, the Antronic Sephilian of Cambridge University and Jihad Toma from the American University of Beirut, argues that the outer solar system disc rock and ice have the same effect as a large outer planet Can generate.

The Cephillian and Touma did not provide any inspection evidence for this alleged disc, because it simply does not exist. Rather, the authors have introduced a new mathematical model that demonstrates the theoretical possibility of this proposed structure. Essentially, the new model completely rejects the existence of Planet Nine or its smallest version, as the combined gravitational influence of an external asteroid and an external scrap disc can produce the same T-orbits.

Saffilan said in a statement that "Planet nine hypothesis is an interesting one, but if the ninth planet is conceived, it avoids invention." "We want to see whether there may be another, less dramatic and possibly more natural for unusual orbits found in some of the tones. Instead of allowing the ninth planet, and then worry about its composition and unusual orbital, why the neptune's orbital disc Do not take into account the gravity of small things that make up and see what it does for us? "

The first to introduce this theory is not the first of the Sephilians and Touma. In 2016, a study led by Berkeley astronomer Anne-Marie Medigan of the University of California, suggested that the outer Kuiper belt disc may be responsible for the remaining parts and pieces from the composition of the disc-solar system formed by the snow-covered planet. For fantastic tin orbits. This new paper is different, in which a mathematical model is used to show these hypothetical disks and eight planets of the Solar System, it can affect the orbital alignment of TNOs.

In his new model, Planet Naw was replaced by a hypothetical disk, and his inner objects were believed to be spread over a large area. According to the cephillian, the collective force of gravity of these substances, "may be responsible for the whimsical orbits in some tin."

If this outer band of the planet exists, nevertheless it will ignore the conventional prediction about the total number of objects outside Neptune and the total set. Current theories indicate that nearly a tenth of Earth's mass is collective of the planet, according to the study writers, but according to its description, it should be about 10 times the mass of the Earth. Thus, it is a big claim, which requires more evidence.

"When we do not have direct inspection evidence for discs, but we do not have Planet nine, so we are investigating other possibilities. However, it is interesting to note that other observations of the Kuiper belt, as well as observations of planet formation models, are large remains of scrap , "Said the Saffillian. "It is also possible that both things can be true – there can be huge discs and ninth planet. With the discovery of every new TNO, we collect more evidence that can help explain their behavior."

Carlos De La Fuente Marcos of Madrid's Complutens University said that providing the existence of this scam disc like proving the existence of Planet Nine is not easy to find the distance from our telescope.

"Such structures, if found to be real, appear to be beyond the reach of existing telescopic features, either by land or by space," Marcos, who is not involved in new studies, told Gizmodo. "It is difficult to support or deny this hypothesis with existing available or schematic telescopes." He added: "The scenario detected in this work seems speculative, but the fact is that we know very little about the Solar System beyond Pluto."

We also talked with Caltech astronomer Konstantin Battinin, who published evidence for Planet Nine's existence in 2016 with his colleague Mike Brown. Mathematics is the "first rate" in a new study, Batigi said, but he has some astronomical deficiencies.

For one, the copper belt ends at about 48 AU, or 4.5 billion miles from the Sun-called "Quper Cliff", after that where TNO is nominative. Secondly, Batgin pointed out to recent research that the Kuiper belt has 50 times less accumulative mass than the Earth, which is much less than the conventional one-tenth-Earth estimate, and 10-Earth-Earth Estimates. Two data points, when taken together, mean that the large disc proposed by the Saffillian and Touma should "start at hundreds of AU" from observation, which is known by observational and spatial mechanics, which is not external.

He told Gismodo that "it is well established that stars like the Sun are usually made in clusters, and the Solar System is no exception." "That is, the existence of cosmos-chemical arguments and the existence of the hour cloud means that the Sun lives in a group of approximately 10,000 stars for about 100 million years – which brings us the third problem with the study: In the early life of the Solar System, the compatibility of early discs, Through the accumulated gravitational potential of the group as well as both [random] Difficulties passing through the stars. "

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A new study suggests that a large protoplantic disk can remain at a distance of more than 100 AU, so it was difficult to believe it.

"Exclusive protoplanetary disks extend only from 30 to 50 au," he said, "why the sun's protoplanetary disc is finished around 30 au, but then starts again at 100 AU? How does the coherent, eccentric nature of the conceived disc stand in the first place? How has the observation survey been released on its existence date? "

Batinin said all these questions, and others, "remain unaddressed by the study." Ultimately, the new paper "falls short by an osmological paradigm shift for an incompatible structure of the distant solar system", he said.

No question, the primary weakness of paper is the absence of astronomical evidence-but the same claim can be made about arguments in favor of Planet Nine. It is very possible because some research argues that there is no orbital existence in the Kuiper belt, and scientists are victims of bias of observation. In other words, there is a need for more reliable data to show that there is something rhetorical. Just as astronomers continue to search for Planet Nine, they should also look for signs of unexpected bands of accidents with the outer reach of our Solar System.

In science, there is no fault in following several paths of inquiry.

[Astronomical Journal]

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