The recent structural evolution of the SMC

被引：41

作者：

Maragoudaki, F ^{[1
]}

Kontizas, M

Morgan, DH

Kontizas, E

Dapergolas, A

Livanou, E

机构：

[1] Univ Athens, Dept Phys, Sect Astrophys Astron & Mech, Athens 15783, Greece

[2] Univ Edinburgh, Astron Inst, Edinburgh EH9 3HJ, Midlothian, Scotland

[3] Natl Observ Athens, Inst Astron & Astrophys, Athens 11810, Greece

来源：

ASTRONOMY & ASTROPHYSICS | 2001年 / 379卷 / 03期

关键词：

galaxies : Magellanic Clouds; galaxies : interactions; galaxies : evolution; galaxies : structure;

D O I：

10.1051/0004-6361:20011454

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We investigate the spatial distribution of stars of different ages towards the main body of the SMC, in an attempt to further understand the nature of the complex structure of the SMC. The old stellar population of the galaxy shows a rather regular and smooth distribution which is typical for a spheroidal body. On the contrary, the distribution of the younger stellar component is highly asymmetric and irregular giving evidence for the severe impact of the SMC during its close encounter with the LMC some 0.2 to 0.4 Gyr ago. In a series of isodensity contour maps of stars within selected ages, the recent structural evolution of the SMC is presented.

引用

页码：864 / 869

页数：6

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