A new musical composition expressing the movement of gases through the galaxy as musical notes, "Milky Way Blues" by astronomer Mark Heyer, a research professor at the University of Massachusetts Amherst, will be featured for the next 30 days on the website, Astronomy Sound of the Month.
For the composition, Heyer developed an algorithm that transforms astronomical data about galactic gases into musical notes. "This musical expression lets you 'hear' the motions of our Milky Way galaxy," he says. "The notes primarily reflect the velocities of the gas rotating around the center of our galaxy."
In galaxies, the space between stars is filled with gas that comes in three phases: atomic, molecular and ionized, he explains. By assigning different tones and length of notes to the observed spectra of each gas phase, the astronomer can express a crucial feature of the galaxy that is missing in astronomical images – movement.
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For the composition, Heyer developed an algorithm that transforms astronomical data about galactic gases into musical notes. "This musical expression lets you 'hear' the motions of our Milky Way galaxy," he says. "The notes primarily reflect the velocities of the gas rotating around the center of our galaxy."
In galaxies, the space between stars is filled with gas that comes in three phases: atomic, molecular and ionized, he explains. By assigning different tones and length of notes to the observed spectra of each gas phase, the astronomer can express a crucial feature of the galaxy that is missing in astronomical images – movement.
Continued...
Source