Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993mnras.265..619b&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Vol. 265, NO. 3/DEC1, P. 619, 1993
Astronomy and Astrophysics
Astronomy
19
Scientific paper
A model is presented that assumes the existence of cold matter immersed as blobs within the central X-ray continuum emitting regions of Seyfert galaxies. Monte Carlo simulations are used to calculate the effect of these blobs on the emergent intermediate (1-100 keV) X-ray spectrum. Model spectra are calculated for a range of blob densities from 10^8^ to 10^18^ cm^-3^ and for volume filling fractions from 0 to 1. Various features of these spectra are then analysed in detail. In particular, an iron fluorescence line is produced with an equivalent width up to about 400 eV for semi-opaque blobs and up to about 100 eV for fully opaque blobs. Our results also suggest that, for the reprocessing effect of the blobs to alter significantly the primary powerlaw spectrum, the individual blob size should be smaller than the size of the continuum region by a factor of at least 100. The simulated spectra produced by fully opaque blobs are in agreement with observations of most Seyfert galaxies.
Bond Ian A.
Matsuoka Masaru
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