the evolution of Young Stars
A team of astronomers studying surface vibrations in thirty-four young stars is a clear relationship between seismic observables and state of evolution was found, and, in particular, are able to deduce the internal stellar processes and ongoing development of the corresponding evolution star.
The evolution of a star depends primarily on its initial mass and composition of birth and evolution of early life. These initial properties determine, for example, the production of chemical elements forged later in the nuclear furnace star and its angular momentum after early affects their internal energy distribution. Thus, astronomers are working to understand the physical processes in the early stages of a star's life after a dense clump of interstellar material contracted, heated, and began the process of star gestation.
In the early stages of the life of a star, its central temperature and density are still not high enough to initiate significant burned; releasing energy from gravitational energy, and flows through gas movements. As internal temperatures rise and the hot gas becomes more transparent, the internal energy begins to redistribute radiation by both gas motions. Then, as these related and compete for supremacy, processes the star vibrates slightly, an effect that may be observed that the periodic variations in the surface of the star luminosity and temperature. In some young stars, you can use "asteroseismology" - the measure of these acoustic models - for exploring the structure and evolution of the star.
CfA astronomer Dimitar Sasslov joined a team of other researchers to study surface vibrations in thirty-four young stars. Their ages are limited by its emission spectrum or membership of star clusters whose ages are known to be less than ten million years, signaling periodic vibrations likely in young stars. The team found a clear relationship between seismic observables and state of evolution and, in particular, are able to deduce the stellar internal process and the development of the corresponding evolution of the star. By analogy with ultrasound, the technique of asteroseismology is able to probe the unborn child, and provides a new probe of the early stages of a star's life.
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