• 47 Tuc X9 White Dwarf

NASA Astronomers Just Found a Star Orbiting a Black Hole at 8 Million Miles Per Hour

Using data from an array of deep space telescopes, a team of NASA astronomers have measured the X-rays pouring from a binary star system called 47 Tuc X9, which sits in a cluster of stars about 14,800 light-years away.

“For a long time, it was thought that X9 is made up of a white dwarf pulling matter from a low mass Sun-like star,” said researcher Arash Bahramian.

When a white dwarf pulls material from another star, the system is described as a cataclysmic variable star. But back in 2015, one of the objects was found to be a black hole, throwing that hypothesis into serious doubt.

2017-03-17T00:05:42+00:00

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