Birth of Tycho Brahe and supernovas
The international team led by Pilar Ruiz-Lapuent of the University of Barcelona has discovered that the supernova described four hundred years ago by astronomer Tycho Brahe was caused by a two-star system.
Brah so accurately described this explosion in 1572, that current astronomers have been able to classify it as type 1a supernovae.
The researchers suspected that the supernova arose from a two-star binary system, that is, a white dwarf, an old and small star that cools down, became too big with the mass that had been removed from the other star and exploded. The explosion caused the accelerated launch of the other star. And they have found that star. It has been called Tycho G and is a star similar to the Sun.
They still want to check the chemical composition of the star to be sure, but it seems certain that this supernova arose from a two-star system.
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