The scientists were able to look into the past of a supernova Tycho Brahe

2017-09-26 11:55

The scientists were able to look into the past of a supernova Tycho Brahe
In the study, scientists were able to refute the accepted science point of view about flash on Tycho Brahe had a relationship with the explosion of the white dwarf.

In the international edition of Nature Astronomy published an article with the latest research by European, American, Australian and Russian scientists, reports Rus.Media. She explains the nature of the supernova Tycho Brahe (SN 1572). In the study, scientists were able to refute the accepted science point of view about flash on Tycho Brahe had a relationship with the explosion of the white dwarf had a mass equivalent to 1.4 solar masses by accretion in a close binary system substances the stars partner.

Type Ia supernovas are pretty standard candles modern observable space. At the moment there are two theories. The first says that the white dwarf mass is growing for billions of years. This contributes to the accretion of matter from stars partner in a very small space binary system. The mass will grow until it reaches its Chandrasekhar limit (1.4 solar masses), and then blow up.

There is also a second theory that says that the explosion occurs during a merger of two white dwarfs in a binary system of a compact type.

Recent studies suggest a completely different approach to the issue. Scientists learned that around the supernova Tycho Brahe formed a large ionized nebula, which has existed for 1 million years after the explosion, the hot white dwarf. This region of ionized gas is called a field Stromgren.

Astronomer Tycho Brahe even 445 years ago was discovered SuperBright star (SN 1572). Then the scientist noticed that the light shines brighter than Venus, but over time, its brightness began to diminish. Now researchers became known that Brahe was a witness to a thermonuclear explosion of a white dwarf supernova type Ia.