The sounds of spirals
Sound waves may have sculpted the spiral pattern of gas and dust in the inner region of a galaxy.
References:
Elmegreen, B.G., et al. 1998. Dust spirals and acoustic noise in the nucleus of the galaxy NGC 2207. Astrophysical Journal Letters 503(Aug. 20):L119.
Sources:
Bruce G. Elmegreen
From Science News, Vol. 154, No. 11, September 12, 1998, p. 169. Copyright © 1998 by Science Service.
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