With scientists measuring energy waves traveling through stars and setting them to music, the familiar tune takes on a whole new meaning.
The three stars measured to bring about a rendition of"Twinkle Twinkle Little Star" that's rooted in reality.
"Motions in the cores of stars launch waves like those on the ocean," study lead Evan Anders, a postdoctoral fellow at Northwestern's Center for Interdisciplinary Exploration and Research in Astrophysics ,"When the waves arrive at the star’s surface," Anders continued,"they make it twinkle in a way that astronomers may be able to observe.
In massive stars, with masses around 1.2 times that of the sun, the convection zone is located at the stellar core — but regardless of this region's depth, it remains out of sight for astronomers. Waves created in the convection zone cause the light from stars to periodically dim and brighten, however, resulting in a subtle twinkle at the surface of a star.
France Dernières Nouvelles, France Actualités
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