The extinction of starlight at wavelengths near 2200 A

Details The extinction of starlight at wavelengths near 2200 A The extinction of starlight at wavelengths near 2200 A

May 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983ap%26ss..92..433h&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 92, no. 2, May 1983, p. 433-438.

Astronomy and Astrophysics

Astronomy

Interstellar Extinction, Interstellar Matter, Ultraviolet Astronomy, Absorptivity, Graphite, Magnesium Oxides, Mie Scattering

Scientific paper

A recent suggestion that the extinction of starlight at wavelengths near 2200 Å may be due to small grains of magnesium oxide, rather than due to graphite, does not seem plausible. The potential ability of graphite to produce ultraviolet extinction is shown to be an order or magnitude greater than the extinction which MgO grains could produce under the most favourable assumptions concerning the effctiveness of O2- transitions.

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