Gas giants such as Saturn and Jupiter may have thrown the carbon-rich asteroid EW95 into the Kuiper Belt beyond Neptune in the early stages of solar system formation. How did it happen? ( NASA, ESA, and G. Bacon (STScI) )
Using ESO's Very Large Telescope (VLT), Tom Seccull of the Queen's University of Belfast in the UK and colleagues noted that it is an unusual object the Kuiper Belt, a region on the edge of the solar system and beyond the orbit of the planet Neptune, is a carbon-rich asteroid.
The Space Rock EW95 2004 is the first of its kind explorers
Researchers said that the asteroid probably formed in the asteroid belt between Jupiter and Mars, but eventually made billions of miles into its new homeland Kuiper belt was thrown.
Scientists have long suspected that many objects in this region were much closer to Earth, but how did they get there?
Spent far into space
Some theories point to the behavior of gas giants like Saturn and Jupiter in the early stages of solar system formation. I imagine that the gas giants did not begin their life in a fixed orbit, but rather collided with the gravitational force of the galaxy, which accumulated materials and ejected them on their way far into space ,
If these theories are correct, some of the asteroids revolving around the Kuiper belt should be the same carbonaceous asteroids commonly found in the asteroid belt between Mars and Jupiter.
Observations from 2004 EW95 revealed the presence of phyllosilicates and iron oxides.
that the object formed under conditions similar to those of the carbonaceous asteroids closer to the earth.
Light reflection data also indicates that the space rock suffered a massive impact, causing severe warming.
Renegade Gas Giants
Researchers said that the properties of the asteroid are consistent with the idea that it could have formed near Jupiter along with other carbonaceous materials, and that it could be formed by migrating planets in the Kuiper Belt was thrown.
If the asteroid is indeed a carbon-rich exile thrown out of its original home by a young gas giant, it affirms theories that gas giants made in the early days of the solar system and hurled rocky orbits into distant orbits.
"The discovery of a carbonaceous asteroid in the Kuiper belt is a key verification of one of the fundamental predictions of the dynamic models of the early solar system," said ESO astronomer Olivier Hainaut.
The results were published in the Astrophysical Journal Letters.
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