Towards an understanding of the physical relationships between quasar populations

标准的类星体模型预测类星体种群之间没有根本的差异，当测量的属性被校正的影响，遮蔽。然而，最近的研究发现了蓝色、红色和模糊类星体之间的根本差异，这表明了更复杂的关系，显然与尘埃的存在有关。这个博士项目的目标是使用来自DESI和4MOST调查的新的光学光谱观测以及相关的多波长观测，开始揭示不同类星体种群之间的物理关系。

The standard quasar model predicts no fundamental differences between quasar populations, when the measured properties are corrected for the impact of obscuration. However, recent research has uncovered fundamental differences between blue, red, and obscured quasars suggesting more complex relationships, apparently related to the presence of dust. The objective of this PhD project is to use new optical spectroscopic observations from the DESI and 4MOST surveys with associated multi-wavelength observations to start to uncover the physical relationships between different quasar populations.