Robert Lea is a science journalist in the U.K. whose articles have been published in Physics World, New Scientist, Astronomy Magazine, All About Space, Newsweek and ZME Science. He also writes about science communication for Elsevier and the European Journal of Physics. Rob holds a bachelor of science degree in physics and astronomy from the U.K.
Jam packed issues filled with the latest cutting-edge research, technology and theories delivered in an entertaining and visually stunning way, aiming to educate and inspire readers of all agesNew research has shed doubt upon the nature of a distant"dead star" that exists in a binary system with an active stellar companion. Scientists behind the research think this stellar corpse is actually a monster-sized white dwarf.
The system is nearby and bright, relatively speaking, meaning it provides an excellent opportunity to actually look for this expected"pollution" from the supernova, Tucker explained. The team was able to find some clues that indicate that the dead star of LAMOST J2354 isn't a neutron star.
He added that this is because white dwarfs have the unique trait of becoming smaller in size as the mass increases, so massive white dwarfs are smaller and fainter than less massive white dwarfs. "There is drag and friction at work, so the orbit slowly shrinks as the envelope is ejected from the system. Despite this process affecting nearly every aspect of, it is extremely complicated to model due to the ridiculous time and spatial scales involved," Tucker continued.
What the team really wants to know is how the low-mass companion in such a binary experienced two separate common-envelope phases without spiraling into a merger with the primary dead white dwarf star.
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