Astrophysics is the branch of astronomy concerned with the physical and chemical properties of celestial bodies.
Astroseismology is a branch of astrophysics in which the internal structure of stars is studied by means of their frequency spectra. The atomic furnaces operating within a star generates sounds that modulate the starlight. These very small modulations can be detected and provide information about the interior processes within stars.
Helioseismology sometimes known as Solar Seismology is the study of the Sun by means of its frequency spectra and light modulation.
Planetary Physics is the study of the structure, composition, physical and chemical properties of planets and their atmosphere, including 'listening' to sounds emitted by these bodies, typically via modulated infra red light, and interpreting such data.
Seismology is the study of the interior of Earth by monitoring earth tremors and earthquakes.
One of the many applications for the CymaScope lies in making visible sounds from the interior of the earth, planets, stars, nebulae and galaxies. All sounds have structure when manifest on a membrane and by making the structure visible on the surface of water the nature of the geometry can help scientists understand the processes at work within planetary and celestial bodies.
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Source: http://cymascope.com/cyma_research/astrophysics.html
