NASA examines a galaxy that perishes every 114 days


While outer space is full of esoteric phenomena, a particular galaxy has surprised experts at the National Aeronautics and Space Administration (NASA). The space agency is now investigating a galaxy located 570 million light-years away that periodically spreads every 114 days. The Neil Gehrels Swift Observatory and Transiting Exoplanet Survey Satellite (TESS), which first observed the outbreak, said the explosion has occurred 20 times so far.

“These are the most anticipated and repeated multilevel flares seen from the core of a galaxy, and they provide us with a unique opportunity to study this exaggerated old belief in detail. We think that a supermassive black hole in the center of the galaxy creates a bursting state because it partially consumes the supermassive star, ”Anna Payne, a NASA graduate fellow at the University of Hawaii at Mano, said in a statement.

Three possible explanations

Subsequently, NASA offered three possible explanations for the outbreak named ASASSN-14ko. The first is that it is caused by the interaction between the discs of a two-hole black hole. Recent data suggest that two black holes exist, but they do not revolve sufficiently to cause a flare. A second possibility is that a passing star was intercepted by a black hole, but since the flares have been consistent with respect to their size, scientists reduce this possibility. The third and most plausible explanation speaks of a partial tidal disintegration event, when a star moves too close to a black hole and the material is continuously stripped away. The star’s orbit is not spherical, meaning that each time it approaches a black hole more mass is destroyed.

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“ASASSN-14ko is currently our best example of periodic variability in an active galaxy, despite decades of other claims, because its flare time is consistent with and analyzed by Anna’s six years of data,” Jeremy Chechenman Said, an astrophysicist at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, who studies black holes, but was not involved in research. “This result is a true tour day force of multilevel observation astronomy,” NASA said in a statement.

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