| 书目名称 | Disc Winds Matter | | 副标题 | Modelling Accretion | | 编辑 | James Matthews | | 视频video | | | 概述 | Nominated as an outstanding PhD thesis by the University of Southampton, Southampton, UK.Includes a broad introduction to accretion and outflow in astrophysical systems.Features a detailed description | | 丛书名称 | Springer Theses | | 图书封面 |  | | 描述 | .This thesis describes the application of a Monte Carlo radiative transfer code to accretion disc winds in two types of systems spanning 9 orders of magnitude in mass and size. In both cases, the results provide important new insights. On small scales, the presence of disc winds in accreting white dwarf binary systems has long been inferred from the presence of ultraviolet absorption lines. Here, the thesis shows that the same winds can also produce optical emission lines and a recombination continuum. On large scales, the thesis constructs a simple model of disc winds in quasars that is capable of explaining both the observed absorption and emission signatures – a crucial advance that supports a disc-wind based unification scenario for quasars. Lastly, the thesis also includes a theoretical investigation into the equivalent width distribution of the emission lines in quasars, which reveals a major challenge to all unification scenarios.. | | 出版日期 | Book 2017 | | 关键词 | Astrophysical Outflows; Accretion Disc Winds; Quasars and Active Galactic Nuclei; Radiative Transfer in | | 版次 | 1 | | doi | https://doi.org/10.1007/978-3-319-59183-4 | | isbn_softcover | 978-3-319-86563-8 | | isbn_ebook | 978-3-319-59183-4Series ISSN 2190-5053 Series E-ISSN 2190-5061 | | issn_series | 2190-5053 | | copyright | Springer International Publishing AG 2017 |
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发表于 2025-3-21 17:59:46
