Supersoft x-ray stars and supernovae

Article Abstract:

Stars that have nuclear fusion on their outer surfaces instead of their inner cores emit low energy x-rays. These are actually binary stars with a white dwarf revolving with a red giant. The dense dwarf star steals hydrogen from the giant and resumes nuclear fusion until it reaches critical mass.

Red giants

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The stellar dynamo

Article Abstract:

Sunspot activity occurs in eleven-year cycles, except in those rare occasions throughout history when there have been aberrations in the cycle. Observations of the solar cycle throughout history and how it influences conditions on Earth is described.

Observations, Sun-spots, Sunspots, Sun, Solar activity, Solar cycle

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Stellar bells: quivering stars bare their inner secrets

Article Abstract:

Asteroseismology is a technique used to learn about the internal structures of stars from vibrations occurring on their surfaces. Asteroseismology as been used to learn about several aspects of the stellar evolution of white dwarf stars.

Methods, Innovations, Measurement, Remote sensing, Seismology, Stellar oscillations

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