Pulsating Stars Enable New Precise Determination Of Rotation Of The Milky Way

Monday, September 22, 2008 - 13:47 in Astronomy & Space

New, very precise measurements have shown that the rotation of the Milky Way is simpler than previously thought. A remarkable result from the most successful ESO instrument HARPS, shows that a much debated, apparent "fall" of neighborhood Cepheid stars towards our Sun stems from an intrinsic property of the Cepheids themselves.

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