光加热和超新星反馈放大了彼此对宇宙恒星形成率的影响
Photo-heating and supernova feedback amplify each other's effect on the cosmic star formation rate
摘要：
与核心坍缩超新星的再电离和动力学反馈相关的光加热先前已被证明会抑制高红移宇宙恒星的形成率。在这里，我们调查的光加热和超新星反馈之间的相互作用，使用一套宇宙学，平滑粒子流体动力学模拟。我们发现，光加热和超新星反馈相互放大对方的能力，抑制恒星形成率。我们的研究结果表明，这两个过程的同时，非独立的列入模型的星系形成的重要性，以估计他们施加的总负反馈的强度。因此，它们可能与半解析模型特别相关，在半解析模型中，光加热和超新星反馈的影响被隐含地假设为相互独立。
英文摘要：
Photo-heating associated with reionisation and kinetic feedback from core-collapse supernovae have previously been shown to suppress the high-redshift cosmic star formation rate. Here we investigate the interplay between photo-heating and supernova feedback using a set of cosmological, smoothed particle hydrodynamics simulations. We show that photo-heating and supernova feedback mutually amplify each other's ability to suppress the star formation rate. Our results demonstrate the importance of the simultaneous, non-independent inclusion of these two processes in models of galaxy formation to estimate the strength of the total negative feedback they exert. They may therefore be of particular relevance to semi-analytic models in which the effects of photo-heating and supernova feedback are implicitly assumed to act independently of each other.
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