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A group of scientists discovered a very, very old, a pulsating star inside a double-star system, allowing them to gain new insights into how these celetial bodies grow and die.
The finding of a pulsating, white star, that means that scientists are able to determine the binary evolution has an impact on the star’s internal structure. White dwarfs are the burned-out cores left behind when a star like the Sun dies.
According to the University of Sheffield in the blog post, this particular white dwarf is made mostly of helium, as opposed to most of the white dwarfs.
Steven Parsons, of the University of Sheffield’s Department of Physics and Astronomy, who led the study, said in a statement: “the Determination of what is a white dwarf, and it is made out of is not straightforward, as these sites have about half the mass of our sun, packed into something about the size of the Earth.”
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Scientists have found out that the pulse remains of a white dwarf star.
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“This is a pulsating white dwarf, we discover, is a very important one, because we will be able to make use of the binary motion, and the same is to make an independent measurement of the mass and radius of the white dwarf, which will help us to figure out where it is,” said Parsons.
The pulsations of these stars have been found with the help of the HiPERCAM a revolutionary high-speed camera.
In the next step of the research is to continue the observations of the white dwarf, and to record as many beats as possible, with the help of the HiPERCAM, and the Hubble Space Telescope (right).
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The study, which was published in Nature magazine of Astronomy.