Structure
According to the current physical models of stars, a yellow hypergiant should possess a convective core surrounded by a radiative zone, as opposed to a sun-sized star, which consists of a radiative core surrounded by a convective zone. Because of their extreme luminosity and internal structure, yellow hypergiants suffer high rates of mass loss and are generally surrounded by envelopes of expelled material. A photogenic example of the nebulae that can result is IRAS 17163-3907, known as the Fried Egg, which has expelled several solar masses of material in just a few hundred years.
Read more about this topic: Yellow Hypergiant
Famous quotes containing the word structure:
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—Karl Wilhelm Von Humboldt (1767–1835)
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“For the structure that we raise,
Time is with materials filled;
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Are the blocks with which we build.”
—Henry Wadsworth Longfellow (1809–1882)