Interstellar depletions and the filling factor of the hot interstellar medium

Details Interstellar depletions and the filling factor of the hot interstellar medium Interstellar depletions and the filling factor of the hot interstellar medium

Oct 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...233l..81d&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 233, Oct. 15, 1979, p. L81-L85.

Statistics

Computation

17

Abundance, Interstellar Matter, Stellar Evolution, Computation, Crystals, Depletion, Planetary Nebulae, Red Giant Stars, Refractory Metals, Sun, Supernovae

Scientific paper

The evolution of refractory interstellar grain abundances and corresponding metal depletions in the solar neighborhood is examined theoretically by calculating the abundance of a given element that is in refractory grain cores. The computations take into account condensation in expanding red-giant winds, in planetary nebulae, and in early supernova ejecta, as well as incorporation into stars and encounters with supernova blast waves; complete efficiency of condensation at the sources is assumed. It is shown that the observed gas-phase depletions toward unreddened stars require a large filling factor for the hot and tenuous phase of the interstellar medium.

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