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Timing Analysis

Observations of the brightness of a source as a function of time can also be referred to as a "time"series" of data. Scientists apply powerful mathematical tools to the analysis of a time series in order to determine whether the brightness of the source changes in a periodic or nearly-periodic fashion. One such powerful tool is called Fourier analysis, after the French mathematician Jean-Baptiste Fourier.

Imagine the Universe is a service of the High Energy Astrophysics Science Archive Research Center (HEASARC), Dr. Alan Smale (Director), within the Astrophysics Science Division (ASD) at NASA's Goddard Space Flight Center.

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