Unique binary star system is extremely rare in the universe

New astronomers have discovered an extremely rare binary star system in the universe. One of the binary systems has a big star that completely obscures the star.

Discover strange binary system in the universe

Using ESA's Gaia satellite, multinational astronomers have discovered an extremely unique binary star system in the universe. This is the first time people know such a strange star system, when a big star completely obscures the star.

This binary star system was named Gaia 14aae in the constellation Draco estimated about 730 light-years from Earth. This system of two stars is known as a "cataclysm" . So called because in the system, a super-thick white dwarf has stole gas from its companion star, feeling like they are "eating" each other.

Looking closely at this system, scientists discovered that Gaia 14aae is a rare binary star star system. In it, the big star directly passes before the star and completely obscures it when viewed from the Earth. The two stars revolve around each other, so the total solar eclipse occurs every 50 minutes.

In the Gaia 14aae system, the big star has 125 times the mass of the Sun. While the other star is about the same size as the Earth, it has an extremely light weight, weighs only 1% of the mass of a large star.

The discovery of this binary star system has made an important contribution to astronomy.(Sci-news photo).

The team of scientists also found that the system contained a large amount of helium but no hydrogen. This makes the binary star system unusually because hydrogen is the most common element in the universe. Due to the lack of hydrogen, this Gaia 14aae star system is a very rare system of AM Canum Venaticorum (AM CVn), an infinitely variable form that both stars have no hydrogen.

The AM CVn system consists of a small, hot, white dwarf star " swallowing" its fellow star. The gravitational force of a white dwarf is too large to force the companion star to bulge like a big ball and move towards it.

The AM CVn system is highly appreciated by scientists because they hold the key of one of the greatest mysteries in modern astrophysics: The cause of Type Ia supernovae . This explosion occurs in binary and is an important part of astrophysics because its brightness can be an important tool to measure the expansion of the universe.

Scientists do not know yet in this case of Gaia 14aae, whether the two stars collide and cause a supernova explosion and whether the big star will "swallow" the small star completely. .