Chemo-dynamical signatures in simulated Milky Way-like galaxies

被引：0

作者：

Spagna, Alessandro ^{[1
]}

Curir, Anna ^{[1
]}

Giammaria, Marco ^{[2
]}

Lattanzi, Mario G. ^{[1
]}

Murante, Giuseppe ^{[3
]}

Fiorentin, Paola Re ^{[1
]}

机构：

[1] INAF Osservatorio Astrofis Torino, Via Osservatorio 20, I-10025 Pino Torinese, Italy

[2] Univ Torino, Turin, Italy

[3] INAF Osservatorio Astron Trieste, Trieste, Italy

来源：

ASTROMETRY AND ASTROPHYSICS IN THE GAIA SKY | 2018年 / 12卷 / S330期

关键词：

Galaxy: abundance; evolution; structure; kinematics and dynamics; DISC;

D O I：

10.1017/S1743921317006019

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have investigated the chemo-dynamical evolution of a Milky Way-like disk galaxy, AqC4, produced by a cosmological simulation integrating a sub-resolution ISM model. We evidence a global inside-out and upside-down disk evolution, that is consistent with a scenario where the "thin disk" stars are formed from the accreted gas close to the galactic plane, while the older "thick disk" stars are originated in situ at higher heights. Also, the bar appears the most effective heating mechanism in the inner disk. Finally, no significant metallicity-rotation correlation has been observed, in spite of the presence of a negative [Fe/H] radial gradient.

引用

页码：263 / 264

页数：2

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