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XMM comma Spitzer comma and Ground-based Observations of Seyfert 1.8 and 1.9 Galaxies

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ESA Earth Online2026-06-22 收录
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We propose XMMNewton observations of 6 Seyfert 1.8 and 1.9 galaxies from ourapproved Spitzer program that will obtain the midIR spectra of these AGN. Wewill use the EPIC spectra to characterize the absorption components anddetermine their hydrogen column densities in the line of sight to the Xrayemission sources. From the Xray determinations of gas column densities andglobal constraints (temperatures, sizes) on the circumnuclear dust regionsderived from the Spitzer spectra, we will test the clumpy torus model, and theidea that Seyfert 1.8 and 1.9 galaxies are viewed at intermediate angles withrespect to the torus axis. We will obtain groundbased optical and nearIRspectra as well, to measure the dust/gas ratio in the torus. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]

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European Space Agency
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