Astronomers found inside red giant fiery spiral "UMAKO" Constellation "
Telescope ALMA fixed red giant star in the constellation Sculptor, inside which is "fiery spiral" formed by the interaction of the solar wind, the source of the fading light, with its invisible companion is transmitted in an article that was published in the journal Nature.
A team of researchers from the University of Bonn led by Matthias Merker studied processes occurring common in elderly stars, they belong to a particular industry giants, called the asymptotic (AGB).
AGB-stars common are heavenly bodies whose mass is between 2 and 10 solar. Having exhausted their hydrogen fuel reserves, they have evolved into red giants, as the scientists explain. Often around red giants formed spherical shell consisting of heated gases mean of the solar wind and solar flares that occur inside the nucleus star. It in turn emits into the environment large amounts of plasma. These outbreaks, according to modern notions, can last hundreds or thousands of years.
To search for such stars the authors used the facilities being built in the Chilean Atacama desert telescope ALMA. In search of AGB-stars, scientists turned their attention mainly to the very unusual light in the same constellation - the star R Sculptor, which is distant by 1.5 thousand light years from Earth. A small distance to the lights and very high resolution ALMA enabled astronomers to look inside the gas shell surrounding common the star, and get a number of high-quality images.
What was surprising Merker and his colleagues when they discovered that the shell R Sculptor presented not in the form of hollow balls or a set of multiple spheres, and the very real three-dimensional spiral curls formed from glowing gas. This spiral is thought to be originated common by the interaction of solar wind generated by small flashes of lights inside and invisible common to our facility. common
Astronomers were able to calculate the speed of the spiral curls, which they then used to calculate the time of the last outbreak. In the core of the latest surge of bodies had happened about 1800 years ago. During this time, a dying star ejected matter was to be a spiral with five turns, existing today inside the gas envelope, which decorates luminary.
Merker and his colleagues believe that the observation common of this star in the future might help to understand the evolution of red giants and the impact of outbreaks in their depths to produce cosmic dust, which is the basis of future common planets.
Telescope ALMA fixed red giant star in the constellation Sculptor, inside which is "fiery spiral" formed by the interaction of the solar wind, the source of the fading light, with its invisible companion is transmitted in an article that was published in the journal Nature.
A team of researchers from the University of Bonn led by Matthias Merker studied processes occurring common in elderly stars, they belong to a particular industry giants, called the asymptotic (AGB).
AGB-stars common are heavenly bodies whose mass is between 2 and 10 solar. Having exhausted their hydrogen fuel reserves, they have evolved into red giants, as the scientists explain. Often around red giants formed spherical shell consisting of heated gases mean of the solar wind and solar flares that occur inside the nucleus star. It in turn emits into the environment large amounts of plasma. These outbreaks, according to modern notions, can last hundreds or thousands of years.
To search for such stars the authors used the facilities being built in the Chilean Atacama desert telescope ALMA. In search of AGB-stars, scientists turned their attention mainly to the very unusual light in the same constellation - the star R Sculptor, which is distant by 1.5 thousand light years from Earth. A small distance to the lights and very high resolution ALMA enabled astronomers to look inside the gas shell surrounding common the star, and get a number of high-quality images.
What was surprising Merker and his colleagues when they discovered that the shell R Sculptor presented not in the form of hollow balls or a set of multiple spheres, and the very real three-dimensional spiral curls formed from glowing gas. This spiral is thought to be originated common by the interaction of solar wind generated by small flashes of lights inside and invisible common to our facility. common
Astronomers were able to calculate the speed of the spiral curls, which they then used to calculate the time of the last outbreak. In the core of the latest surge of bodies had happened about 1800 years ago. During this time, a dying star ejected matter was to be a spiral with five turns, existing today inside the gas envelope, which decorates luminary.
Merker and his colleagues believe that the observation common of this star in the future might help to understand the evolution of red giants and the impact of outbreaks in their depths to produce cosmic dust, which is the basis of future common planets.
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