从盘不稳定性观点看微类星体的分类
A microquasar classification from a disk instability perspective
摘要：
微类星体的惊人变化导致了一长串的努力，以将它们观察到的行为分类为几个状态。在这些物体中观察到的准周期振荡的理解方面取得的进展现在使得有可能开发一种新的方法来找到它们行为中的秩序，基于与这些振荡相关的理论化物理过程。这也将有助于将微类星体重新组合在一个基于工作中的物理过程的单一分类中，从而独立于它们的特性（质量，变化时标，爆发历史等）。这种分类的目的是作为一种工具，以进一步了解微类星体的行为，而不是取代唯象状态。我们首先考虑三种可能引起吸积的不稳定性。我们比较了它们的发展条件，以及它们可以预期产生的准周期振荡，以及这些准周期振荡被观察到并且有时共存的光谱状态。从我们提出的解释GRS 1915+105三个态的三个不稳定性中，我们实际上发现了四个态的理论存在。我们将这四种状态与观测结果进行了比较，并将这四种状态如何以独立于模型的方式进行观察。这四个态可以用来寻找微类星体观测的顺序，基于准周期振荡的性质和相关的不稳定性的物理。
英文摘要：
The spectacular variability of microquasars has led to a long string of efforts in order to classify their observed behaviors in a few states. The progress made in the understanding of the Quasi-Periodic Oscillations observed in these objects now makes it possible to develop a new way to find order in their behavior, based on the theorized physical processes associated with these oscillations. This will also have the interest of reuniting microquasars in a single classification based on the physical processes at work and therefore independent of their specificities (mass, variation timescale, outburst history, etc.). This classification is aimed to be a tool to further our understanding of microquasars behavior and not to replace phenomenological states. We start by considering three instabilities that can cause accretion in the disk. We compare the conditions for their development, and the Quasi-Periodic Oscillations they can be expected to produce, with the spectral states in which these Quasi-Periodic Oscillations are observed and sometimes coexist. From the three instabilities that we proposed to explain the three states of GRS 1915+105 we actually found the theoretical existence of four states. We compared those four states with observations and also how those four states can be seen in a model-independent fashion. Those four state can be used to find an order in microquasar observations, based on the properties of the Quasi-Periodic Oscillations and the physics of the associated instabilities.
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