Flicker… A Bright New Method of Measuring Stellar Surface Gravity

(Before It's News)

A simple, yet elegant method of measuring the surface gravity of a star has just been discovered. These computations are important because they reveal stellar physical properties and evolutionary state – and that’s not all. The technique works equally well for estimating the size of hundreds of exoplanets. Developed by a team of astronomers and headed by Vanderbilt Professor of Physics and Astronomy, Keivan Stassun, this new technique measures a star’s “flicker”. (…)
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© tammy for Universe Today, 2013. |
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Post tags: asteroseismology, photometry, spectroscopy, stellar flicker, stellar surface gravity

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