The birth of a super giant green 'monster', 10,000 times brighter than the Sun

 Spanish scientists have revealed the mystery of the origin of the universe's extreme "monsters" - blue supergiant stars.

According to Space.com, a research team led by the Institute of Astrophysics of Canarias (IAC - Spain) has found clues that blue supergiant "monster" stars are created when two stars in a binary star system spiraling together and merging.

Blue supergiants are class B stars, at least 10,000 times brighter, 2-5 times hotter and 16-40 times more massive than our Sun.

The green super giant "monster" could be born from two stars merging - (Graphic image).

In the universe, the hotter the stars, the more blue their color. In contrast, "cooler" stars have whiter colors; "cooler" then turns yellow, orange.

The type of star with the lowest temperature is red dwarf stars, if not counting "failed stars" called brown dwarfs - an object that lies somewhere between star and planet status.

Our sun is a yellow star of class G, meaning its brightness and temperature are average.

Therefore, it can be imagined that class B blue supergiant stars are a very extreme type of star. Big and hot, but they are also short-lived: They grow quickly, they die quickly.

For many years, the riddle of how these extreme monsters came to be remained unknown.

According to the newly proven model, scientists have focused on an absurd point in the nature of blue supergiant stars: The more massive the star, the more likely it is to have a companion, but the monster form This is always lonely.

So the most reasonable explanation: They are the result of a merger.

Analyzing 59 blue supergiants from the Large Magellanic Cloud, a satellite galaxy of the Milky Way galaxy where Earth resides, scientists have charted the lives of these cosmic monsters. .

"We simulated the merger of evolved giant stars and smaller companions according to many parameters, taking into account the interaction and mixing of the two stars during the merger" - said lead author Athira Menon from IAC.

The stars conceived by this merger began their new lives at a very fast pace, with great success in resurfacing.

The new results could be a major step forward in solving the remaining puzzles related to this extreme form of cosmic monster, as well as its fate after running out of energy and dying, forming a neutron star or black hole.