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http://hdl.handle.net/20.500.12386/26899
Title: | An orientation-based unification of young jetted active galactic nuclei: the case of 3C 286 | Authors: | Berton, Marco FOSCHINI, LUIGI CACCIANIGA, Alessandro Ciroi, Stefano Congiu, Enrico Cracco, Valentina Frezzato, Michele LA MURA, GIOVANNI Rafanelli, Piero |
Issue Date: | 2017 | Journal: | FRONTIERS IN ASTRONOMY AND SPACE SCIENCES | Number: | 4 | Abstract: | In recent years, the old paradigm according to which only high-mass black holes can launch powerful relativistic jets in active galactic nuclei (AGN) has begun to crumble. The discovery of γ-rays coming from narrow-line Seyfert 1 galaxies (NLS1s), usually considered young and growing AGN harboring a central black hole with mass typically lower than 10^8 M_☉, indicated that also these low-mass AGN can produce powerful relativistic jets. The search for parent population of γ-ray emitting NLS1s revealed their connection with compact steep-spectrum sources (CSS). In this proceeding we present a review of the current knowledge of these sources, we present the new important case of 3C 286, classified here for the fist time as NLS1, and we finally provide a tentative orientation based unification of NLS1s and CSS sources. | URI: | http://hdl.handle.net/20.500.12386/26899 | URL: | https://www.frontiersin.org/articles/10.3389/fspas.2017.00008/full | ISSN: | 2296-987X | DOI: | 10.3389/fspas.2017.00008 | Bibcode ADS: | 2017FrASS...4....8B | Fulltext: | open |
Appears in Collections: | 1.01 Articoli in rivista |
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Berton2017.pdf | PDF editoriale | 713.56 kB | Adobe PDF | View/Open |
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