Astronomy Consolidated Grant at UCLAN

这项综合赠款提案汇集了中央兰开夏大学耶利米·霍罗克斯研究所(JHI)在恒星天体物理、银河系天体物理和银河系外天体物理等关键研究领域的研究成果。在这些领域，我们将在天体物理研究的前沿解决关键的科学问题。在恒星天体物理学领域，我们将解决目前恒星形成中的一些尚未回答的关键问题，特别是围绕着星前核心的形成、结构和演化，以及磁场在这一过程中所起的作用。这一点很重要，因为人们认为核心质量函数和恒星初始质量函数(IMF)之间存在联系。按照计划，这将使我们对IMF本身的起源有一个真正的实际了解。我们还将研究原恒星周围圆盘的演化和双星对行星形成的影响，并对原恒星周围圆盘中巨型行星的迁移进行建模，以了解恒星光度和圆盘性质如何影响这一过程。此外，我们还将试图探索和了解氢燃烧的主序恒星中的内部角动量输运，并寻找超新星的起源。在银河系和银河系外天体物理领域(包括作为最近星系的银河系)，我们将研究星系尺度上剧烈变化的物理条件如何影响ISM中的能量平衡、气体到恒星的转换以及恒星子体的IMF。我们将以高空间分辨率探测分子气体和尘埃的分布，以了解尘埃早期类型星系中这些成分的起源。我们将在一套N体+SPH模拟中剖析银河系凸起、条形和圆盘的演化，并计算轨道，以帮助解释GAIA数据。因此，我们将更好地了解黑洞在银河系整体演化中的作用，以及它的质量聚集。对于强大的活动星系核(AGN)，我们将开发喷流中的重新准直激波模拟，以包括额外的物理和现实条件，以便更好地理解这些高能现象

This consolidated grant proposal brings together research within the Jeremiah Horrocks Institute (JHI) of the University of Central Lancashire (UCLan) in the key research areas of stellar astrophysics, Galactic astrophysics, and extra-Galactic astrophysics. In these areas we will be addressing key science questions at the cutting edge of astrophysical research. Some examples of these are given here.In the area of stellar astrophysics, we will solve some of the currently unanswered key questions in star formation, particularly those surrounding the formation, structure and evolution of prestellar cores, and the role played by magnetic fields in particular in this process. This is important, because there is believed to be a link between the core mass function and the stellar Initial Mass Function (IMF). It is planned that this will lead us to a true physical understanding of the origin of the IMF itself. We will also study the evolution of discs around protostars and the effects of binarity on planet formation, and model the migration of giant planets in discs around protostars to see how this is affected by stellar luminosity and the properties of the disc. In addition, we will also attempt to explore and understand internal angular momentum transport in hydrogen-burning, main-sequence stars, and we will search for the progenitors of supernovae.In the areas of Galactic and extra-Galactic astrophysics (including the Milky Way as the nearest galaxy) we will investigate how the energy balance in the ISM, the conversion of gas into stars, and the IMF of the stellar progeny are affected by the dramatically changing physical conditions on galaxy-wide scales. We will probe the distribution of molecular gas and dust with high spatial resolution, to understand the origin of these components in dusty early-type galaxies. We will dissect the evolution of the Milky Way bulge, bar and disc, and compute orbits, in a suite of N-body+SPH simulations in order to help interpret Gaia data. Thereby we will better understand the role of the bar in the overall evolution of the Milky Way, as well as its mass assembly. For powerful Active Galactic Nuclei (AGN) we will develop re-collimation shock simulations in jets to include additional physics and realistic conditions, in order to better understand these highly energetic phenomena