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篇目详细内容 |
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【篇名】 |
Active galactic nuclei – the physics of individual sources and the cosmic history of formation and evolution |
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【刊名】 |
Frontiers of Physics |
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【刊名缩写】 |
Front. Phys |
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【ISSN】 |
2095-0462 |
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【EISSN】 |
2095-0470 |
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【DOI】 |
10.1007/s11467-013-0310-3 |
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【出版社】 |
Higher Education Press and Springer-Verlag Berlin
Heidelberg |
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【出版年】 |
2013 |
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【卷期】 |
8
卷6期 |
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【页码】 |
609-629
页,共
21
页 |
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【作者】 |
Henric Krawczynski;
Ezequiel Treister;
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【关键词】 |
active galactic nuclei (AGNs); black hole accretion; relativistic jets; cosmological evolution |
【摘要】 |
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In this paper we give a brief review of the astrophysics of active galactic nuclei (AGNs). After a general introduction motivating the study of AGNs, we discuss our present understanding of the inner workings of the central engines, most likely accreting black holes with masses between 106 and 1010 M⊙. We highlight recent results concerning the jets (collimated outflows) of AGNs derived from X-ray observations (Chandra) of kpc-scale jets and γ-ray observations of AGNs (Fermi, Cherenkov telescopes) with jets closely aligned with the lines of sight (blazars), and discuss the interpretation of these observations. Subsequently, we summarize our knowledge about the cosmic history of AGN formation and evolution. We conclude with a description of upcoming observational opportunities. |
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