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The boxy bulge and stellar bar of the Milky Way

机译:银河系的箱子凸起和恒星酒吧

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We describe the boxy bulge, long stellar bar and elliptical ring of the Galaxy. Thismodel has largely evolved from NIR survey work by many teams and differs from other modelswith a monolithic ellipsoidal bulge. We maintain that the structure of the inner Galaxy can onlybe properly studied by adequately sampling the entire Galactic plane for, and that the bulge is best studied at least from the plane. We briefly report a slight radially outwardly increasing metallicity gradient along the bar and reaffirm de Vaucouleurs & Pence's(1978) suggestion that the Galaxy is probably of morphological type SAB(rs)bc II.
机译:我们描述了银河系的箱子凸起,长恒星酒吧和椭圆形环。这个模型在很大程度上从NIR调查工作中发展了许多团队,并与其他型号的不同之处在一起的整体椭圆凸起。我们认为,只有通过充分采样整个银晶平面,才能才能才能对内部星系的结构进行适当地研究,并且最好至少从平面研究凸起。我们简要介绍了沿着酒吧的轻微径向向外增加金属梯度,并重申vaucoulebor和Pentirm(1978)的建议,即星系可能是形态学型SAB(RS)BC II。

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