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2018 Spring Science Colloquia

Connecting Highly Evolved Stars with Their Younger Selves through Space-based Asteroseismology

Presented by: Steve Kawaler (Iowa State University)
Category: Science Colloquia   Duration: 1 hour   Broadcast date: April 11, 2018
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By awakening us to the amazing abundance of other planetary systems, the Kepler mission was a landmark in advancing our understanding of the Universe. The mission (and its follow-on, K2) produced extremely accurate brightness measurements of nearly 200,000 stars, with continuous light curves spanning months to years. Beyond planet hunting, Kepler was also an "asteroseismology machine," revealing the subtle seismic vibrations of the stars. Through asteroseismology, the data has exposed the internal structure of hundreds of main sequence stars, thousands of red giants, and dozens of white dwarfs - providing an exquisite record of the behavior of stars from birth to old age. In this talk I’ll discuss the contributions that asteroseismology has been able to make in tracing the evolution of stellar interiors, and plans for asteroseismology with new missions such as TESS and PLATO.