Not every star is equal. Out of the blue supergiants pulsars, the universe has a huge variety of stellar features. However, there is one category, which was discovered 20 years ago, but we still know very little about
Brown dwarfs are essentially failed “stars” -. They are too big to be called a planet, but too small to be stars. They form on the way stars do – by collapsing clouds of gas and dust – but it will never be enough dense nuclei for nuclear fusion to begin and stars on the “fire.” Thus, they are dark and cold and really hard to find telescopes for the night sky.
The question of why they never light a sly, and that is what researchers from the University of York examined by one of the most powerful lasers in the world. They used laser volcano Petawatt to create a “lump” of the plasma, which recreates the conditions inside the nucleus and examine it.
‘Future observations “
When measuring the X-rays emitted from the plasma of a lump sum, the researchers were able to build a profile as a dense plasma is formed within the brown dwarfs, deepening our understanding of the microcosm that is going on inside these objects.
“Vulcan petawatt laser is one of the few places on Earth where you can create conditions similar to those at the center of a brown dwarf,” said Nicola Booth, lead author on the study reports the preliminary results of their work, published in Nature Communications. “We hope that with the predicted future observations of brown dwarfs, our experiments can help with the understanding of how the transported energy in these” stars “.”
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