Astronomers may have identified the birth of a black hole or a neutron star after examining a mysteriously bright glow in the night sky.
The object was detected last June, suddenly blown up and then disappeared inside the constellation of Hercules – about 200 million light years from Earth.
After combining a number of different image sources, including X-rays and radio waves, the team led by Northwestern University in the United States believes it knows what caused it.
According to Dr. Raffaella Margutti, the twin ATLAS survey telescopes in Hawaii captured the exact moment when a star collapsed to form a compact object.
This object was either a black hole or a neutron star ̵
"We think that 'The Cow' is the formation of a catchy black hole or a neutron star," said Dr. Margutti, who conducted the research.
"We know from the theory that black holes and neutron stars are formed when a star dies, but we never saw them immediately after being born." Nev er, "he said.
The cow was up to 100 times too bright to be a supernova, said dr. Margutti, and disappeared too quickly.
The particles were ejected at a speed of 30,000 km per second – or 10% of the speed of light.
It peaked in just 16 days, where typically supernovae can last millions and billions of years.
"We knew immediately that this source has gone from inactive brightness to peak in a few days," said dr. Margaret.
"It was enough to excite everyone because it was so unusual and, by astronomical standards, it was very close."  Dr. Margutti will present her findings at the American Astronomical Society before the research is published on the Astrophysical Journal.