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(University of Warwick/Mark Garlick/detection)
In the opposite direction from the one hit of the last millennium, astronomical observations did not succeed in finding any thing like the moon crystal by the council. Sorry, Xuxa. But researchers from the University of Warwick in England, has announced the discovery of a celestial body is more precious: The Sun Crystal. Published in the journal Nature article describes the first direct evidence that success can be crystallized.
But this is a fate reserved only to the category of excellent, specific, white dwarfs, which are the third and final evolutionary stage in the life of stars like the sun, small to medium to large. When all the hydrogen that keep them burning consumed and converted to helium, they swell and I saw a red giant. This transition should begin to occur in the sun in 5 billion years.
The next step involves a combination of helium to carbon and oxygen. If you have the mass required to produce in essence the high temperatures able to incorporate carbon and oxygen, will be used in the compilation of the heavier elements, in the end, turnovers in the name of the red in his last breath in a supernova explosion. It’s the life story of the stars who the fans leave ten times the mass of the sun to the top. But these are the minority.
Of the hundreds of billions of stars in the Milky Way galaxy, a 97% share the fate of the sun: unable to carbon and oxygen, two elements that accumulate in the nuclei and the form of inert bulk. Once all the helium is exhausted, the red giant hurtled in the space between stars outer layered region of the Nebula is great. It leaves behind a dense core integrated with the equivalent of a solar mass stuck in the area of similar size of Earth. Thus was born the white dwarf.
“This is the first direct evidence that white dwarfs can be crystallized, undergo transition from a liquid to a solid”
From the data of the investigation, Gaia, the European Space Agency (ESA), astronomers from the University of Warwick test 15 a possible white dwarfs within a radius of 300 light-years from Earth. After review of these colors and luminosities, they found the peaks of emission coincide with the time that the theoretical models predict a release of more heat. This is the code that started the crystallization process.
“This is the first direct evidence that white dwarfs can be crystallized, undergo a transition from liquid to solid,” says astrophysicist Pier-Emmanuel Tremblay, leader of the research. The producers predicted the phenomenon 50 years ago, but only now it can be seen. All white dwarfs in the Milky Way should follow the bird of the day: how much more massive they are the faster it will happen. “This means that the billions of white dwarfs in our galaxy have already completed the process and are basically crystal beads in the sky,” says Tremblay Sun enters to the group in less or more than 10 million years.
After crystallization of the atoms of carbon and oxygen to form the metal structure is very good. The extreme pressure makes the free electrons in the gas which follows the quantum mechanics of physics. An interesting fact is that crystallization slows the cooling of these stars, and knew some of the billions of years of extra life. It is estimated that white dwarfs of the oldest in the Milky Way-like galaxy, with something of about 13.4 billion years old, and a nearly perfect crystal balls.