Metallic particles in astronomy

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Cosmochemistry, Cosmology, Metal Particles, Nuclear Astrophysics, Relic Radiation, Supernova Remnants, Astronomical Models, Intergalactic Media, Interstellar Matter, Iron, Metallicity, Whiskers (Crystals)

Scientific paper

Some implications of iron whiskers condensing in supernova ejecta and being expelled into interstellar and intergalactic space are considered. It is shown that in the supernova case, the time scale and the iron vapor pressure are close to the values needed for whisker growth to lengths of about 1 mm or more. The results call into question the supposition that the universal microwave background is a relic from an early hot state of the universe.

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