Observational Overview of the Feeding of Active Galactic Nuclei
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Universidad Nacional Autónoma de México
2008
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| _version_ | 1876458682936459264 |
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| author | Thaisa Storchi-Bergmann |
| author_facet | Thaisa Storchi-Bergmann |
| contents | Observational Overview of the Feeding of Active Galactic Nuclei Thaisa Storchi-Bergmann Física, Astronomía y Matemáticas Galaxies: active galaxies: nuclei supermassive black holes galaxies: stellar content galaxies: kinematics and dynamics I present an overview of the observational signatures of feeding of Active Galactic Nuclei, discussing briefly the role of interactions among galaxies on extragalactic scales, and of non-axisymmetric gravitational potentials -such as bars- on galactic scales. Then I discuss at larger length the feeding signatures on hundred of parsec scales, for which new results include: (1) recent star formation surrounding the active nucleus on tens of parsec scales; (2) excess of gas and dust in active galaxies relative to non-active ones, in the form of nuclear spiralsand disks; (3) new kinematic signatures of gas inflow along nuclear spiral arms, which may be the long sought mechanism to bring gas from kiloparsec scales down to the nucleus to feed the supermassive black hole. 2008 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57103251 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_57103251 |
| institution | Redalyc |
| language | en |
| publishDate | 2008 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | Observational Overview of the Feeding of Active Galactic Nuclei Thaisa Storchi-Bergmann Física, Astronomía y Matemáticas Galaxies: active galaxies: nuclei supermassive black holes galaxies: stellar content galaxies: kinematics and dynamics Observational Overview of the Feeding of Active Galactic Nuclei Thaisa Storchi-Bergmann Física, Astronomía y Matemáticas Galaxies: active galaxies: nuclei supermassive black holes galaxies: stellar content galaxies: kinematics and dynamics I present an overview of the observational signatures of feeding of Active Galactic Nuclei, discussing briefly the role of interactions among galaxies on extragalactic scales, and of non-axisymmetric gravitational potentials -such as bars- on galactic scales. Then I discuss at larger length the feeding signatures on hundred of parsec scales, for which new results include: (1) recent star formation surrounding the active nucleus on tens of parsec scales; (2) excess of gas and dust in active galaxies relative to non-active ones, in the form of nuclear spiralsand disks; (3) new kinematic signatures of gas inflow along nuclear spiral arms, which may be the long sought mechanism to bring gas from kiloparsec scales down to the nucleus to feed the supermassive black hole. 2008 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57103251 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 | Observational Overview of the Feeding of Active Galactic Nuclei |
| topic | Física, Astronomía y Matemáticas Galaxies: active galaxies: nuclei supermassive black holes galaxies: stellar content galaxies: kinematics and dynamics |
| url | https://www.redalyc.org/articulo.oa?id=57103251 |