According to new research, the Sun may have been surrounded by a huge ring of dust like Saturn before the existence of Earth and other planets in our solar system.
Those dust rings may have prevented Earth From the growth to “Super Earth” — a type of planet that is about twice the size of the Earth and up to 10 times its mass. According to NASA..Astronomers have discovered a super-earth that orbits about 30% of our sun-like stars. Galaxy..
The outbreak of super-earth in many other solar systems left astronomers with some unanswered questions. So, “If super-earth is super-common, why don’t we have super-earth in our solar system?” Andre Izidro, an astrophysicist at Rice University in Houston, Texas, Said in a statement.. To find out, Izidoro and his colleagues, Solar systemEmerged from the ashes of a cloud of dust and gas that has collapsed, known as the Solar Nebula. Live science previously reported..
Their simulations suggested that a “bulge” of pressure, or a high-pressure region of gas and dust, would have surrounded the infant’s sun. These high pressure regions may have occurred when the particles moved towards the Sun under their strong attraction and were heated to release large amounts of vaporized gas.
Simulations have shown that there are likely to be three different regions where solid particles vaporize into a gas, called “sublimation lines”. At the line closest to the Sun, or in the hottest zone, solid silicate turned into gas. In the middle line, the ice would have been heated enough to turn into gas. And on the farthest line, carbon monoxide became a gas.
Simulations have shown that dust-like solid particles plunged into these “humps” and began to accumulate. In a statement, Andrea Isera, an associate professor of physics and astronomy at Rice University, said, “The effect of pressure bumps is that they collect dust particles, which is why we see the ring. “. In the absence of these pressure bumps, the Sun would have quickly devoured particles, leaving no seed for the planet to grow. “We need something to stop them in order to give them time to grow,” Isera said.
With age, the gas and dust surrounding the Sun cooled, and the sublimation lines approached the Sun.This process allowed dust to accumulate on planetesimals, or asteroid-Planet-sized species. May be together to form a planet. “Our model shows that pressure bumps can concentrate dust and moving pressure bumps can act as a planetesimal factory,” said Izidoro.
In a statement, Izidro said the rise in pressure adjusted the amount of material available to form planets in the inner solar system.
Simulations show that the ring closest to the Sun formed planets in the inner solar system, such as Mercury, Venus, Earth, and Mars. The middle ring eventually became a planet in the outer solar system, and the outermost ring formed comets, asteroids, and other small bodies at the Kuiper belt, a region beyond Neptune’s orbit.
In addition, researchers have discovered that super-earth may have formed in the solar system if it simulated the delay in the formation of intermediate rings. “By the time the pressure bumps were formed in these cases, much mass had already penetrated the internal system and was available to create a super-earth,” Izidoro said. “Therefore, the time when this medium pressure bump was formed could be an important aspect of the solar system.”
The findings were published in the journal on December 30th. Nature Astronomy..
Originally published on Live Science.
The sun had a ring like Saturn
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