| http://www.w3.org/ns/prov#value | - The star becomes a white dwarf (???0.01 Rsun), supported by the degeneracy pressure of its closely packed electrons (?? = 107 - 1011 kg m-3), and the gas cloud continues to expand, and eventually merges into the ISM, enriching it with heavy elements such as carbon, nitrogen and oxygen, as well as organic molecules and refractory silicates and carbonaceous grains.
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