8-13 micron spectrophotometry of galaxies. III - The silicate absorption in Markarian 231

Details 8-13 micron spectrophotometry of galaxies. III - The silicate absorption in Markarian 231 8-13 micron spectrophotometry of galaxies. III - The silicate absorption in Markarian 231

Oct 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983mnras.205p..21r&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 205, Oct. 1983, p. 21P-26P. Research supported by the S

Astronomy and Astrophysics

Astronomy

29

Infrared Absorption, Infrared Astronomy, Interstellar Extinction, Seyfert Galaxies, Silicates, Galactic Nuclei, Infrared Spectra, Interstellar Matter, Red Shift, Spectrophotometry

Scientific paper

Spectrophotometry at 8 - 13 μm of Mkn 231 confirms that the 10 μm minimum is due to large columns of silicate dust in the line-of-sight to the nucleus. Fits to the detailed spectral shape demonstrate that the cool absorbing grains are at the emission (z = 0.042) rather than the absorption (z ≡ 0.025) redshift and are located within the nuclear region.

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