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A unique flickering black hole has been discovered in space.
– The object not only radiated optical light, but was also visible in radio waves and X-rays, says Professor Anna Ho at Cornell University.
The object, AT2022tsd, was discovered at the Zwicky Transient Facility in California last September and is 4.4 billion light-years away from Earth.
– Objects were initially brighter and faded faster than typical supernovae, says Anna Ho, lead author of the study.
A pure coincidence
One hundred days later flickering light from the object was discovered by chance, the outbursts lasting a few minutes and lasting at most a few hours.
Astronomers from Stockholm University played a key role in the study published in Nature.
– Among other things, we used the Nordic telescope NOT on La Palma to study the phenomenon. This is a unique phenomenon that has never been observed before, says Jesper Sollerman.
The researchers believe that it could be a small black hole that is sporadically fed with gas.