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If there is anything to know about black holes, it is that these space objects consume everything in their path. But there have been instances where materials are ejected, and recently, scientists were able to find a very unusual type of black hole.
Express reports that researchers discovered a black hole 250 million light-years away from Earth. What was unusual about this black hole is that it emits bursts of radiation every nine hours, compared to the usual black holes who irregularly emit radiation bursts. Experts were surprised, and have expressed that this is the first time they witnessed a black hole that regularly emits X-ray flares.
The researchers at the University of Leicester analyzed the black hole in an attempt to understand the regular x-ray flare patterns. They found that the regular x-ray flares were a result of a dead star escaping its encounter with the black hole and now orbits around it. The orbit took nine hours to complete, which explains the regular x-ray flare patterns.
According to the university’s lead astronomer Andrew King, “This white dwarf is locked into an elliptical orbit close to the black hole, orbiting every nine hours. At its closest approach, about 15 times the radius of the black hole’s event horizon, gas is pulled off at the star into an accretion disk surrounding the black hole. This results in the black hole releasing x-ray flares that would be detected by spacecrafts.”
King revealed that this occurrence will only be visible to current telescopes for a limited time, which is 2,000 years. “It will try hard to get away, but there is no escape. The black hole will eat it more and more slowly, but never stop.”
Previously, NASA and ESA’s Hubble Space Telescope discovered a multi-armed spiral galaxy 95 million light-years away from Earth. Formally known as NGC 2273, NASA describes the phenomena as a pinwheel galaxy with rings within the spirals, creating a spiral within the spiral. The agency calls this a multiring structure, and this is what makes this particular galaxy unusual compared to the other galaxies the Hubble has discovered.
