A Comparison between the narrow-line regions of Seyfert 1 and Seyfert 2 galaxies
We present high-resolution narrow-band [O III] images of Seyfert 1 and Seyfert galaxies, obtained in the Hubble Space Telescope Data Archive. The continuum-subtr cted [O III] images were useto measure the narrow-line region (NLR) sizes and compare them wlth the predtctlons from te Umfied Scheme. Thi...
| Autores: | , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 1996 |
| País: | Brasil |
| Institución: | Universidade Federal do Rio Grande do Sul (UFRGS) |
| Repositorio: | Repositório Institucional da UFRGS |
| Idioma: | inglés |
| OAI Identifier: | oai:www.lume.ufrgs.br:10183/108766 |
| Acceso en línea: | http://hdl.handle.net/10183/108766 |
| Access Level: | acceso abierto |
| Palabra clave: | Materia interestelar Galaxias seyfert Nucleo galatico Espectros astronômicos Galaxies: active Galaxies: seyfert Galaxies: structure |
| Sumario: | We present high-resolution narrow-band [O III] images of Seyfert 1 and Seyfert galaxies, obtained in the Hubble Space Telescope Data Archive. The continuum-subtr cted [O III] images were useto measure the narrow-line region (NLR) sizes and compare them wlth the predtctlons from te Umfied Scheme. This paper shows that the Seyfert 1 NLR sizes are much smaller than the NLR stzes of the Seyfert 2's if they were observed pole-on. We propose that the Unified Scheme inot wrong but rather that the Seyfert 1's may have their torus axes aligned close to the galaxy plane axts. |
|---|