The devil is in the distance

Bohdan Paczynski ()
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Bohdan Paczynski: Princeton University Observatory

Nature, 1999, vol. 401, issue 6751, 331-332

Abstract: An apparent discrepancy between two independent distance measurements to a faraway glalaxy may lead to a revised value for the age of the Universe. The latest distance estimate is based on the discovery of large variable stars -- known as Cepheids -- in this galaxy. But the blending effects caused by images of Cepheids being mixed with other stars may provide a solution to the distance problem.

Date: 1999
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DOI: 10.1038/43794

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