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“A magnetorotational hypernova may be to blame for the mysterious chemical composition of star SMSS J200322.54-114203.3.”
In the very early years of the universe, some 13 billion years ago, there was a star.
It was also spinning rapidly and had a very strong magnetic field.
As it began to run out of fuel, its time as a star came to an end.
Its last breath was violent.
“No one’s ever found this phenomenon before.”
Researchers hypothesize that J2003-1142 rose like a phoenix from the ashes of an ancient, exploding star.
Lying about 7,500 light-years from Earth, J2003-1142 is practically a cosmic neighbor.
Further observations of J2003-1142 were gathered with the Very Large Telescope in Chile.
Explosions in the sky
The observations allowed researchers to examine J2003-1142’s chemical composition in great detail.
In the past, scientists have speculated thatthese heavier elements are created when neutron stars collide.
The modeling performed by Yong and colleagues suggests a magnetorotational hypernova might help explain the difference.
