What was once believed to be the Earth's closest black hole has now been classified as a two-star system with a vampiric star.
In that third study, astronomers Kareem El-Badry and Eliot Quataert of UC Berkeley analyzed the system’s spectra. They found that the mass of one of the stars was greater than the mass of the other. As such, they said the one star is more bloated and appeared to be recently stripped and contracting into a hot subdwarf.
Bodensteiner’s team joined up with another team led by KU Leaven researcher Abigail Frost to study the discovery more in-depth. Two years after its discovery, the team says the Earth’s closest black hole is in fact just a two-star system where one star siphoned resources from another. “Our best interpretation so far is that we caught this binary system in a moment shortly after one of the stars had sucked the atmosphere off its companion star,” Bodensteinerfeatured on the ESO’s website. She also says that the occurrence is actually very common in close binary systems. Because one star siphoned material from the other, the recipient began to spin more rapidly.
It was this more rapid spinning that helped create the illusion that gave birth to Earth’s closest black hole. Ais still pretty scary, but, at least we can rest easy knowing there isn’t a black hole less than 1500 light-years away from us. Josh Hawkins fell in love with writing and technology at a young age. Eventually he decided to combine the two and started writing about video games, the latest tech, and all the cool gadgets he could find. Whenever he isn’t busy writing about tech or gadgets, he can usually be found enjoying a new world in a video game, or tinkering with something on his computer.
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