Chemo-spectrophotometric evolution of spiral galaxies — I. The model and the Milky Way
Chemo-spectrophotometric evolution of spiral galaxies — I. The model and the Milky Way
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DOI：
10.1046/j.1365-8711.1999.02699.x
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发表时间：
1999-02
影响因子：
4.8
通讯作者：
S. Boissier;N. Paris;France.
中科院分区：
文献类型：
--
作者：
S. Boissier;N. Paris;France.
ABSTRA C T螺旋星系的化学和分光光度演化的详细模型进行了研究，利用最新的成分（如金属依赖的恒星属性）和处方的星星形成率（SFR）的经验和理论证明。作为第一个应用，该模型被用来描述银河系的演化。所采用的光盘形成方案（“由内而外”）在塑造各种化学和颜色配置文件的作用进行了研究，以及消光的作用。结果表明，太阳邻域不像银河系作为一个整体，一个区域模型与非线性SFR处方不能用来研究我们的银河系的演变。我们的模型的平均SFR显示匹配以及外部螺旋的观察。
ABSTRA C T The chemical and spectrophotometric evolution of spiral galaxies is investigated with detailed models, making use of up-to-date ingredients (like metallicity-dependent stellar properties) and a prescription for the star formation rate (SFR) justified both empirically and theoretically. As a first application, the model is used to describe the evolution of the Milky Way. The role of the adopted scheme of disc formation (‘inside-out’) in shaping the various chemical and colour profiles is investigated, as well as the role of extinction. It is shown that the Solar neighbourhood does not evolve like the Milky Way as a whole and that one-zone models with a non-linear SFR prescription cannot be used to study the evolution of our Galaxy. Our model average SFR is shown to match well observations of external spirals.