June 2, 2023

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Takish Lake Meteorite … A time capsule to study the early solar system

Researchers have transformed the famous meteorite “Takish Lake Meteorite” into a time capsule that went back millions of years to study the early solar system.

The researchers, led by Japanese scientist Yuki Kimura, an assistant professor at the Institute of Low Temperature Science at the University of Hokkaido in Japan, announced their findings in the latest issue of the journal Astronomy.

Within the meteorite, the magnetic fields associated with the body-forming particles act as a historical achievement, and by analyzing these magnetic fields, scientists can predict possible events affecting the body and reconstruct the time interval for events that occurred on the meteorite. When they did, they did so with the “Takish Lake” meteorite.

The meteorite fell from the sky on January 18, 2000, in northwestern British Columbia, Canada, where it first exploded at an altitude of 30 km, before falling in the form of a small meteor shower on Lake Tokish.

In a statement posted on the University of Hokkaido website on August 10, Kimura said, “The oldest meteorites are the time capsules of the elements that formed at the beginning of our solar system, and to understand the physical and chemical history of the solar system, it is necessary to analyze different types of meteorites with different origins.”

While many asteroids are available for study on Earth, most of them originated from the asteroid belt between Mars and Jupiter, and these models are used to study the shape of the early solar system, although it is difficult to reconstruct events that occurred in the distant solar system, after the asteroid belt.

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Using this technique, numerical simulations showed that the mother body of the Takish Lake meteorite formed part of the outer solar system about 3 million years after the formation of the first solar system minerals. And then into the orbit of the asteroid belt as a result of Jupiter formation.

Magnetite, a component of the meteorite, was formed when the mother’s body was heated to about 250 degrees Celsius by radiant heat, which is believed to be a powerful effect during the body’s transition from the Khyber belt to the asteroid belt.

“Our results help to predict the early dynamics of solar systems that formed millions of years after the formation of the solar system, and include the most efficient formation of outer solar systems, including Jupiter,” says Kimura.