Graphic Describing Two Observational Methods (IMAGE)

University of Copenhagen

Graphic Describing Two Observational Methods

Caption

In both observations the redshift is measured from the clarity of the supernova. But in observation 2 (Galaxy 2) the measurement is made on the ejecta from the explosion. The measurements on Galaxy 2 become more uncertain since we don't know exactly in each case how fast the explosion ejects the material. Never the less it is still made in order to obtain as much data as possible.

Credit

Peter Laursen

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