Evolutionary synthesis of the energetics and mass loss of starburst stellar clusters: starbursts and active galactic nuclei
Evolutionary synthesis of the energetics and mass loss of starburst stellar clusters: starbursts and active galactic nuclei
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星暴星团的能量学和质量损失的演化综合：星暴和活动星系核
DOI：
10.1093/mnras/269.3.538
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发表时间：
1994
影响因子：
4.8
通讯作者：
J. Perry
中科院分区：
文献类型：
--
作者：
R. Williams;J. Perry
在本文中，我们计算模型的能量和质量预算的星爆恒星团，特别是他们的热光度从各种来源，恒星质量损失率和超新星率。我们利用基于精确恒星演化轨迹的演化布居合成方法，寻找与长时间尺度上恒星演化相一致的模型.由于恒星爆发在星系演化中的重要性，我们的恒星爆发能量模型有许多不同的应用，如球状星团、OB星协等.本文介绍了恒星爆发的演化过程，并讨论了恒星爆发的演化机理.我们研究了我们的模型对活动星系核结构和演化的各种理论的影响。我们发现，纯粹的星爆很难解释活动星系核的能量和变化;相反，如果星爆区域围绕着一个巨大的吸积黑洞，那么核的燃料供给就可以很自然地解释了。在本文中，我们表明，使用我们的详细的人口模型，预测的质量吸积率的超新星的数量是足够的产生所观察到的覆盖因子的超新星激波的机制所描述的佩里和戴森。
In this paper, we calculate models for the energetics and mass budget of starburst stellar clusters, in particular their bolometric luminosities from various sources, stellar mass-loss rates and supernova rates. We use the method of evolutionary population synthesis, based on accurate stellar evolution tracks, to find models consistent with stellar evolution over long time-scales.Because of the significance of starbursts in the evolution of galaxies, our models of their energetics have many diverse applications, e.g. globular clusters, OB associations, etc. In this paper, we study the influence of our models on various theories for the structure and evolution of active galactic nuclei. We find that pure starbursts have difficulty in accounting for the energetics and variability of AGN; instead, the fuelling of the nucleus is explained naturally if the starburst region surrounds a massive accreting black hole.The supernovae in such a cluster are a natural site for the formation of broad emission lines. In this paper we show, using our detailed population models, that the number of supernovae predicted by the mass accretion rate is sufficient to generate the observed covering factor of supernova shocks by the mechanism described by Perry & Dyson.