Discovered three newly formed planets in our galaxy
Finding young planets in our galaxy remains science's top priority. But with the help of the world's most expensive terrestrial telescope, two groups of astronomers believe they have found not just one, but three newly formed planets.
These three young planets orbiting a star called HD 163296 , are about 330 million light-years away in the constellation Sagittarius.
These three young planets are in the constellation Sagittarius.
This is the first discovery of new planets, thanks to a special technology that helps hunt them.
Both groups of astronomers observe abnormal signs in the gas stream inside a disk that forms planets around a young star.
They studied the width of CO gas inside the dish, observing the wavelengths of light emitted from the gas molecules that reveal how it moves. Any strange movement in the gas stream is a sign that it is related to a very large object.
Richard Teague, an astronomer from the University of Michigan and author of one of two articles on this discovery, explained in an online speech: 'We have observed small-scale, positioning of gas flow in the star's pre-planet disk. This completely new approach can detect the youngest planets in our galaxy, all thanks to the high resolution images from the ALMA telescope '.
Predict the location of the planet - Photos from ESO, ALMA (ESO / NAOJ / NRAO).
A group of astronomers led by Teague discovered two planets located 12 billion and 21 billion km away from the star. While another group, led by Christophe Pinte from Australia's Monash University, identified a planet 39 billion km away from the star.
Pinte added: 'Measuring the flow of air in a pre-planet disc helps make sure that the planets are present around a young star. This technique brings a promising new direction to understanding how to form planetary systems. '
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