Implications of Nonlinear Line Response in Variable Seyfert Nuclei
نویسندگان
چکیده
منابع مشابه
Emission Line Properties of Seyfert 2 Nuclei
This is the third paper of a series devoted to the study of the global properties of Joguet’s sample of 79 nearby galaxies observable from the southern hemisphere, of which 65 are Seyfert 2 galaxies. We use the population synthesis models of Paper II to derive ‘pure’ emission-line spectra for the Seyfert 2’s in the sample, and thus explore the statistical properties of the nuclear nebular compo...
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C.G. Mundell, P. Ferruit, N. Nagar and A.S. Wilson 1 Astrophysics Research Institute, Liverpool John Moores University, Twelve Quays House, Egerton Wharf, Birkenhead, CH41 1LD, U.K: [email protected] 2 Observatoire de Lyon, 9 Avenue Charles André, Saint-Genis Laval Cedex, F69561, France 3 Astronomy Group, Departamento de F́ısica, Universidad de Concepción, Casilla 160-C, Concepción, Chile an...
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We describe a new sample of Seyfert nuclei discovered during the course of an optical spectroscopic survey of nearby galaxies. The majority of the objects, many recognized for the first time, have luminosities much lower than those of classical Seyferts and populate the faint end of the AGN luminosity function. A significant fraction of the nuclei emit broad Hα emission qualitatively similar to...
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It is known that the spectral energy distribution (SED) of the nuclear radiation of narrow-line Seyfert 1 galaxies (NLS1s) has different shapes with respect to that of ordinary broad-line Seyfert 1 galaxies (BLS1s), particularly in wavelengths of X-ray. This may cause some differences in the ionization degree and the temperature of gas in narrow-line regions (NLRs) between NLS1s and BLS1s. This...
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ژورنال
عنوان ژورنال: Symposium - International Astronomical Union
سال: 1994
ISSN: 0074-1809
DOI: 10.1017/s0074180900176405