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Título | Photographic photometry and the optical spectrum of the Seyfert galaxy IC 4329 A |
Autor |
Pastoriza, Miriani Griselda
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Abstract | Spectrophotometric and photographic observations of IC 4329 A show that this Seyfert galaxy has reduced dimensions D x d = (13.6 x 7.6) kpc anda high luminosity Mph = -20.2. The nucleus is stratified in three zones: first, a region where the wide components of the Balmer !ines are formed having Ne ~10 9 cm-³ and a velocity dispersion of ~5000 km s-ˡ; second, a region where the forbidden !ines and the shorter wavelength peak of the Balmer !ines are formed, characterized by Te ~12,000 K and Ne ~10 6 cm-³; finally, the longer wavelength peak of the Balmer !ines originates in a gas cloud receding from the nucleus with V= 2100 km s-ˡ. |
Contido em | The astrophysical journal. Chicago. Vol. 234, no. 3, pt. 1 (Dec. 1979), p. 837-841 |
Assunto |
Alargamento de linha espectral
Densidade de elétrons Espectros astronômicos Galáxia IC 4329a Galáxias Galaxias seyfert Observações astronômicas no visível [en] Galaxies: individual [en] Galaxies: photometry [en] Galaxies: seyfert |
Origem | Estrangeiro |
Tipo | Artigo de periódico |
URI | http://hdl.handle.net/10183/108763 |
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000145038.pdf (120.9Kb) | Texto completo (inglês) | Adobe PDF | Visualizar/abrir |
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