Stars die. Stars need a place to rest. The remains of ancient suns that have collapsed into black holes or neutron stars were searched for by researchers at the University ofSydney.
For the first time, they found a graveyard much larger than our own. The researchers called their discovery a "galactic underworld" in their study.
David Sweeney, a PhD student at the Sydney Institute for Astronomy, said in a press release that the "height" of the universe is three times larger than the Milky Way. Thirty percent of objects have been ejected from the universe.
Massive stars collapse in on themselves at the end of their lives, creating black holes and neutron stars. These stellar remnants are hard to find in dark areas of space.
The researchers were able to predict where their corpses would end up by simulation.
To account for the Kicks they receive in the violent moments of their creation was the hardest problem to solve.
The remnants are ejected at high speed, up to millions of kilometers per hour, and even worse, this happens in an unknown and random direction for every object.
The research team found the composition of the Underworld to be remarkable.
The compact remnants of dead stars show a fundamentally different distribution and structure.
Sanjib was impressed by the graveyard he helped chart.
"I expected that the galactic underworld would be the same in many ways, but subtly different," he said. I wasn't expecting such a drastic change in form.
The image of Exploded Star is amazing.
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