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Because of the period-luminosity relation for Cepheids and RR Lyrae variable stars, astronomers are able to _____

Because of the period-luminosity relation for Cepheids and RR Lyrae variable stars, astronomers are able to _____

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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Because of the period-luminosity relation for Cepheids and RR Lyrae variable stars, astronomers are able to _____  a.  determine the relationship between the period of pulses and luminosity    b.  measure the mass of a star    c.  calculate a star’s diameter  d.  determine the chemical composition of a Type I Cepheid   e.  narrow their study to eclipsing binary stars only 

 

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Because of the period luminosity relationship for cepheids and RR lyare variable stars, the astronomers are able to determine the relationship between the period of pulses and luminosity.

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