对Martinez-Valpuesta和Gerhard的论文“在Milky Way中统一体凸和平面长杆”的评论[ arXiv：1105.0928]
Comments on the paper `Unifying Boxy Bulge and Planar Long Bar in the Milky Way' by Martinez-Valpuesta & Gerhard [arXiv:1105.0928]
摘要：
我们对Martinez-Valpuesta和Gerhard最近的论文（arXiv：1105.0928，2011）进行了评论，他们提出了一种替代我们银河系内部4 kpc的凸起+长棒假设的方法，即具有扭曲主轴的单一箱式凸起结构。原则上，我们认为这一建议是可以接受的;事实上，从纯粹的形态学观点来看，这更多的是一个语义学问题，而不是科学问题，可能我们所有人都在谈论同一件事。然而，我们认为这个新提议的“单一扭曲的凸起/棒”场景的特定特征使得某些观测事实无法解释，而错位凸起+长棒的模型成功地解释了它们。
英文摘要：
We comment on the recent paper by Martinez-Valpuesta & Gerhard (arXiv:1105.0928, 2011), who suggest, as an alternative to the bulge + long bar hypothesis in the inner 4 kpc of our Galaxy, a single boxy-bulge structure with a twisted major axis. In principle, we find this proposal acceptable; indeed, from a purely morphological point of view, this is more a question of semantics than science, and possibly all of us are talking about the same thing. However, we think that the particular features of this new proposal of a "single twisted bulge/bar" scenario leaves certain observational facts unexplained, whereas the model of a misaligned bulge + long bar successfully explains them.
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