As reported in an article posted in the journal Nature, the radio telescope ALMA allowed scientists to track the formation of the star HD 142527 and its planets in the constellation of the Wolf, located at a distance of 450 light years from our planet.It helped get the idea of ​​the star takes the protoplanetary disk material itself, despite the considerable distance between them.

There are currently believed that the planets and the stars begin to form due to gravitational collapse of the densest parts of the cloud of gas and dust.When flicker occasionally emerging stars are warming up next to it regions of the protoplanetary disk, leaving the remains of gas and dust are carried away beyond the solar system formed.But the mass of the star still continues to increase, which is kind of a mystery to scientists.To solve this issue could also group of astrophysicists led Kasassusa Simon (Simon Casassus) from the University of Chile in Santiago, conducted the above study the stars.

Note that ALMA observator
y still under construction and will be built on the Chajnantor plateau in Chile.The tool works in the millimeter and submillimeter wavelengths, upon completion it will consist of 66 antennas.

Scientists have established that the space between the star and the newly arisen protoplanetary disk is not empty, it contains relatively rarefied layer of gas.This was told a molecule of carbon monoxide, no radiation was recorded with the help of a telescope.Also, specialists have found spiral gas flows inside the protoplanetary disk, which indicates the presence of emerging or already formed planets.Features of the movement of gases lead to the conclusion that they pull together the planet, thus increasing its mass.

explained Kasassus, gravity takes a part of the possible protoplanets disk material, as a result of forming streams rushing towards them gas.A significant part of gas while flying past the planet and sent into the inner part of the disk, and then eventually falls onto the star.This process contributes to the continuing build-up of stellar mass and at the same time prevents the destruction of its protoplanetary disk radiation.Calculations show that the planetesimals thus deliver a sufficient amount of gas to the current rate of growth of the young star.

received as interesting information about the features of the birth of star systems, Kasassus with his group of scientists with the help of computer simulations decided to check out, as in a protoplanetary disk has affected the lack of gas flow.As a result, scientists have concluded that the star HD 142527 in such a case would destroy the drive for about a year, after which the increase in the star system would be completed.

conducted research suggests a high degree of importance of this process in the formation of high-grade solar systems.The new series of observations planned for the spring of 2013, when all the work on the construction of ALMA (Atacama Large Millimeter / submillimeter Array) will be completed.

Video of the birth star in the constellation of the Wolf:



Written Materials SPACE.com | Photo from video clips