Bob Yirka is a research scientist at Phys.org.
Evidence has been found that the asteroid formed in an outer part of the solar system near comets.
In their paper published in the journal Science Advances, they state that some of the material found in Ryugu appears to have come from materials that were pulled from the inner parts of the solar system to the outer parts.
Dust samples from the asteroid were returned to Earth two years ago. Various research groups have been studying the samples to learn more about asteroids and the formation of planetary bodies.
The researchers looked at the minerals in the dust samples. They found carbonate minerals, which are found in low- temperature, watery environments. Evidence shows that the asteroid was formed in an area outside of the solar system.
The copper and zinc isotopes were very similar to the carbonaceous chondrite meteorite Ivuna.
The material in the dust could not have formed in the outer solar system because it was too hot. In some cases, the ratios of oxygen 16 were rich, but in other cases, they were not. They found that some of the ratios were similar to those found in samples that came back from the Wild 2 comet.
The researchers think that the mineral evidence shows that the comet was formed in a part of the solar system near where most comets form. Some materials from the inner solar system made their way to the outer solar system and collided with an asteroid.
Science Advances has more information about the kinship between asteroid Ryugu and comet 81P/ Wild2 There is a book titled "Sci Adv.ade2067."
Journal information: Science Advances
There is a science network.
All Rights Reserved © 2024
