A STAR VISITED US BEFORE

The first research on the visit of the Scholz Star has published three years ago in the Astrophysical Journal Letters magazine. According to the research, a dull red dwarf who roamed with a brown dwarf was approached near the sun about 0.8 solar years (ie approximately 7.5 million kilometers or 50,600 AU).

Astronomers think that this distance may have been as near as 0.6 light years (5.7 trillion kilometers or 37,900 AU). On the cosmic scale, they are quite low distances. To make a comparison, on January 1, 2019, the Kuiper Belt object MU69, which will reach the orbit of the New Horizons spacecraft, is located at 43 AU from the Sun.

Oumuamua Was Far Away

The research, published three years ago, suggested that the red dwarf was touched on the Oort Cloud, which represents the extreme limit of the Solar System. The Scholz Star, which has since been drifting since then, is now 20 light-years away from the Sun. Researchers at the University of Rochester suggested that the brown dwarf accompanying Scholz Star were 9% and 6% mass of the Sun and could not have deflected objects in the Oort Cloud from their orbits.

_{Img Source:Pixabay}

New research published in the Monthly Notices of the Royal Astronomical Society advocates the opposite of this scenario. Carlos de la Fuente Marcos and Raúl de la Fuente Marcos (siblings) from the Complutense University of Madrid, who were the head of the research, calculated that many of the objects deviated from the orbit in the Oort Cloud during the passage of Scholz and his cosmic friend.

In a research sponsored by Cambridge University, Sverre J. Aarseth studied the object of 339 Solar System with a hyperbolic orbit (moving like V instead of the usual elliptical orbit). Computer models and locations where hyperbolic objects are in space were calculated. The resulting statistics showed that some of these objects might have been poked by the Scholz Star.

Compared to the position of the Scholz Star, objects with hyperbolic orbit were detected which are not regular but distributed in the direction of the constellation Gemini. Of the 339 bodies observed, 36 were identified as having their position in the direction of the constellation of Gemini. The calculations corresponded well to the 70,000 years before the Scholz Star visited the Solar System. According to Fuente Marcos, who gives information to Gizmodo, the orbit of the orbit that is orbiting by the Scholz Star must be much more.

_{Wikipedia-NASA (Public Domain)}

What is even more interesting in the research was that the eight interstellar comets found in the observation. The orbits of these celestial objects are unknown. Two comets thought to have been influenced by Scholz C / 2008 J4 (McNaught) and C / 2012 S1 (ISON). Interstellar comets either move closer to our system or remain under the influence of the Sun's gravitational force. "Oumuamua", the first known interstellar visitor discovered in October 2017, is not among the 36 objects that Scholz influences. According to the research, Oumuamua was far away when the red dwarf came to visit.

How Accurate Is The New Research?

Eric Mamajek, the head writer of the research in 2015, said the latest findings are based on a very good investigation. According to the cosmic time of stars, Mamajek said that such celestial objects passed from Oort Cloud, but only a few million years. Scholz is the latest example in the list. Mamajek,

"The effect of the transition of the Scholz Star did not directly affect the Earth. The comets that Scholz may have sent to Earth do not pose a great risk to us. There are many other problems that the world needs to solve much faster ".

Wesley Fraser of Queen's University in Belfast said that the latest research has raised questions. Fraser said that it is noteworthy that the radians of the Scholz Star and comet which have some hyperbolic orbit, are similar. On the other hand, he stated that it is difficult to make a definite judgment with only statistical information. The reason is that in the galactic plane, only 14 of the 339 bodies surveyed, but there may be much more in the area represented by the survey.

Fraser thinks that research is a biased research. Nevertheless, he admits that it is of course, very difficult to achieve an objective result, based on the research and calculations of the comets which have been done for half of the century . Dan Brown of the University of Nottingham Trent also said that the data used in the research are not enough to pinpoint the locations of celestial bodies. Fraser stated that Considering the eight comets thought to be under the influence of Scholz would need computer models or physical evidence to show their speeds in order to claim that they were subject to such a thing.

_{By NASA [Public domain], via Wikimedia Commons}

Alan Jackson from the University of Toronto-Scarborough is among the skeptics. According to him, the speed of 1.5 km per second for hyperbolic orbital bodies is too low. Some of the eight comets thought to be interstellar may actually belong to the Solar System. Jackson stated that the methods used in the research are logical. He also said that a star from the Sun at a distance of 52,000 AU may have torn a comet cluster from the Oort Cloud.

What Did Our Ancestors See?

In addition to this very confusing research, another question attached to the mind is what the ancestors saw in the sky in the days when they migrated to Eurasia. Predictions are that a small, red shaded spot appeared in the sky temporarily. But it probably never happened.

_{CC 2.0, via Flickr.com}

The red dwarf is an extremely dull star. It is believed that the Scholz Star is 50 times less bright than any bright spot that can be seen with the naked eye in the night darkness. Nevertheless, as one of the magnetically active red dwarfs, the Scholz Star may have emitted some brightness that can be seen for hours or days. It is very hard to imagine what our ancestors who have been able to see, have gone through in their minds.

References

• _{A close call of 0.8 light years}
• _{“70,000 yıl önce Güneş’i ziyaret eden yıldız Oort Bulutu’nu birbirine kattı”}
• _{How a Passing Star 70,000 Years Ago Changed the Solar System}

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