论文标题
通过建模来解释经典Novae的光曲线的长时间波动
Explaining Prolonged Fluctuations in Light Curves of Classical Novae via Modeling
论文作者
论文摘要
尽管尚不清楚，但在几次NOVA喷发中已经观察到了延长最大值的波动，如果该现象是源自爆发的白矮人的某种机制的实际物理反应，如果它发生在弹出的壳中，或者是在膨胀的外壳中发生的，或者是与红色dwarf compans的相互作用形式，则不能直接从观察结果中推导出来。为了评估这种特征是喷发本身的实际组成部分，研究了少数几个爆发的NOVA模型。结果表明，可能产生这些波动的机制是对流前线的重复方法和衰退。这种机制的效率取决于WD包膜的质量以及Nova周期的时间尺度，有利于低质量WDS和长增生阶段。
Fluctuations during a prolonged maximum have been observed in several nova eruptions, although it is not clear, and can not be deduced directly from observations, if the phenomenon is an actual physical reaction to some mechanism originating in the erupting white dwarf, if it is occurring in the expanding ejected shell or if it is a form of interaction with the red dwarf companion. A handful of erupting nova models are investigated in this work, in order to assess the possibility of this sort of feature being an actual part of the eruption itself. The results explain that the mechanism that may produce these fluctuations is the repeated approach and recession of the convective front from the surface. The efficiency of this mechanism, being dependent on the mass of the WD envelope and the time scale of the nova cycle, favors low mass WDs and long accretion phases.
