Robert Lea is a science journalist in the U.K. whose articles have been published in Physics World, New Scientist, Astronomy Magazine, All About Space, Newsweek and ZME Science. He also writes about science communication for Elsevier and the European Journal of Physics. Rob holds a bachelor of science degree in physics and astronomy from the U.K.’s Open University. Follow him on Twitter @sciencef1rst.
, a senior lecturer in astrophysics at the University of Sheffield in the U.K. and lead author of the new research, told Live Science via email."This means that any model that wants to explain these FBOTs has to confront the fact that these are not round events."
"FBOTs are bright, they're really bright — brighter than some superluminous supernovas — but they suddenly appear, and then their brightness drops like a stone!" Maund said."Unlike regular supernovae, there are no radioactive elements to power the brightness, so the power has to come from somewhere else."
In their new research, Maund and his team took another look at the light from the Cow first recorded in June 2018, this time studying how the light was polarized — how the vibrations in the light waves traveled in a single plane. While this analysis of the Cow doesn't reveal the origins of FBOTs just yet, the Cow's flatness shows that FBOTs are even more distinct from supernovas than scientists previously thought.
These polarization observations allowed the team to determine the Cow's strange shape. Light from the Cow was measured using the Liverpool Telescope, whose primary mirror is only 6.5 feet in diameter. The team used these data to create a 3D model of the explosion, with polarization allowing them to reconstruct it as if it had been spotted by a telescope with a diameter of around 388 miles . This allowed them to map the explosion to its edges, revealing just how flat it actually was.
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