Narrow-line Seyfert 1 Galaxies
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| Format: | Artículo científico |
| Language: | en |
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Universidad Nacional Autónoma de México
2008
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| _version_ | 1876485888996802560 |
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| author | S. Komossa |
| author_facet | S. Komossa |
| contents | Narrow-line Seyfert 1 Galaxies S. Komossa Física, Astronomía y Matemáticas Galaxies: active galaxies: Seyfert I provide a short review of the properties of Narrow-line Seyfert 1 (NLS1) galaxies across the electromagnetic spectrum and of the models to explain them. Their continuum and emission-line properties manifest one extreme form of Seyfert activity. As such, NLS1 galaxies may hold important clues to the key parameters that drive nuclear activity. Their high accretion rates close to the Eddington rate provide new insight into accretion physics, their low black hole masses and perhaps young ages allow us to address issues of black hole growth,their strong optical Fe II emission places strong constraints on Fe II and perhaps metal formation models andphysical conditions in these emission-line clouds, and their enhanced radio quiteness permits a fresh look atcauses of radio loudness and the radio-loud radio-quiet bimodality in AGN. 2008 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57103230 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Vol.32 |
| format | Artículo científico |
| id | redalyc_57103230 |
| institution | Redalyc |
| language | en |
| publishDate | 2008 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | Narrow-line Seyfert 1 Galaxies S. Komossa Física, Astronomía y Matemáticas Galaxies: active galaxies: Seyfert Narrow-line Seyfert 1 Galaxies S. Komossa Física, Astronomía y Matemáticas Galaxies: active galaxies: Seyfert I provide a short review of the properties of Narrow-line Seyfert 1 (NLS1) galaxies across the electromagnetic spectrum and of the models to explain them. Their continuum and emission-line properties manifest one extreme form of Seyfert activity. As such, NLS1 galaxies may hold important clues to the key parameters that drive nuclear activity. Their high accretion rates close to the Eddington rate provide new insight into accretion physics, their low black hole masses and perhaps young ages allow us to address issues of black hole growth,their strong optical Fe II emission places strong constraints on Fe II and perhaps metal formation models andphysical conditions in these emission-line clouds, and their enhanced radio quiteness permits a fresh look atcauses of radio loudness and the radio-loud radio-quiet bimodality in AGN. 2008 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57103230 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Vol.32 |
| title | Narrow-line Seyfert 1 Galaxies |
| topic | Física, Astronomía y Matemáticas Galaxies: active galaxies: Seyfert |
| url | https://www.redalyc.org/articulo.oa?id=57103230 |