Far-ultraviolet dust opacity and photoionization in quasi-stellar objects

Details Far-ultraviolet dust opacity and photoionization in quasi-stellar objects Far-ultraviolet dust opacity and photoionization in quasi-stellar objects

Feb 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...235l.125m&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 235, Feb. 1, 1980, p. L125-L128.

Astronomy and Astrophysics

Astrophysics

21

Cosmic Dust, Interstellar Matter, Opacity, Photoionization, Quasars, Ultraviolet Absorption, Absorption Cross Sections, Emission Spectra, Far Ultraviolet Radiation, H Ii Regions

Scientific paper

The effects of dust within the broad-line emission region of QSOs by incorporating a realistic grain opacity which decreases with energy in the ionizing continuum are examined. Any changes in the ionization structure therefore reflect the effective hardening of the continuum. The magnitude of structural changes in QSOs is probably small, although some changes might be introduced if there is significant depletion of carbon into small particles. Some effects of dust in explaining anomalies in H II regions are also discussed.

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