Birth of a Planet Jupiter

The mysterious birth process gas giant planets - like Jupiter and Saturn in our solar system - presents a dilemma for planetary scientists. In January 2013, astronomers announced they have discovered an exoplanet Jupiter born around a star called HD 142527, located in the constellation Lupus Southern, about 450 light years from Earth. This discovery helps to shed light on the mysterious process of how gas planets jumbo come into being.

Many astronomers agree that it is easy to get to form planets around a star similar to the Sun seal. As a relatively small, dense cloud in a cold area, dark interstellar molecular collapses to give the parent star, it also tends to leave a relic of the disk of dust particles circulating young star. Dust sticky particles easily freeze together to form larger and larger and larger objects, which grow in the end in the planets of right. Most of the mass of gel formed a bubble in the center that gave birth to our Sun, while the rest flattened into a protoplanetary disk from which the planets, moons, asteroids, comets, and many other small items the solar system emerged.

Protoplanetary disk were seen around many stars that inhabit the cluster of young stars. Explain the pangs of birth giant, gaseous planets have proven problematic. A viable theory presented by planetary scientists to explain the mystery is called the disk instability model. According to this model, gas giants are born embedded in the protoplanetary disk because of massive gravitational fragmentation. The second theory is viable called accretion base model (instability nucleation model) in which the gas giant born in two steps:

1. Accretion of large core weighing about 10 Earth masses.

2. Accumulation of gas from the protoplanetary disk on the ring already formed.

This second model is currently the most popular among planetary scientists because it can explain the gas giant birth to relatively low mass disks.

Far birth of a giant

In January 2013, astronomers announced they may have seen a giant gaseous planet - such as Jupiter or Saturn - being born. The study provides an explanation of how a young star can gain weight, as your brand new family of planets emerging swallows a lot of dust and gas swirling around it. "This is one of the closest examples of the birth of the solar system," said the University of Chile astronomer, Dr. Simon Casassus, January 2, 2013 Science News. The parent star, HD 142527, weighs about two times larger than our Sun, but is much younger - only 2 million years. HD 142527 has been known to be surrounded by gas and dust swirling disk that sported a large clearing in it. The clearing lives about 10 times to 140 times the distance from Earth to the Sun. These gaps suggest that a growing baby hungry planet capture the gas and dust from the disk to feed him and allow him to gain weight. Dr Casassus and his colleagues believe that a type jumbo Jupiter planet is being born within this compensation, at a distance of about 90 AU from its star.

The team used a new Atacama Large Millimeter Array Chile / submillimeter (ALMA) to make detection of the dust disk spin your way around this distant star.

This observation is important because it adds credibility to the model of gas giant planet formation suggests that existing instabilities in the disk surrounding, build and enable the formation of Jupiter and Saturn-like planets around young stars. Therefore, according to this observation, a Jupiter-like planet increases by accumulating the gas and dust disk, the creation of a clearing and plowed through it.

The team of astronomers also believe the tentacles of dust loaded with fascination, which extend through the clearing are tattle tale signs that there is at least one protoplanet orbiting HD 142527.