Star-forming regions in the small magellanic cloud: Multiwavelength properties of stellar complexes

被引：9
|
作者：
Livanou, E. [1 ]
Gonidakis, I.
Kontizas, E.
Klein, U.
Kontizas, M.
Kester, D.
Fukui, Y.
Mizuno, N.
Tsalmantza, P.
机构：
[1] Univ Athens, Fac Phys, Sept Astrophys Astron & Mech, GR-15783 Athens, Greece
[2] Natl Observ Athens, Inst Astron & Astrophys, GR-11810 Athens, Greece
[3] Univ Bonn, Argelander Inst, D-53121 Bonn, Germany
[4] Univ Athens, Fac Phys, Dept Astrophys Astron & Mech, GR-15783 Athens, Greece
[5] SRON, Netherlands Inst Space Res, NL-9700 AV Groningen, Netherlands
[6] Nagoya Univ, Dept Astrophys, Nagoya, Aichi 4648602, Japan
[7] Univ Athens, Fac Phys, Dept AStrophys Astron & Mech, GR-15783 Athens, Greece
来源：
ASTRONOMICAL JOURNAL | 2007年 / 133卷 / 05期
关键词：
galaxies : stellar content; Magellanic Clouds; stars : formation;
D O I：
10.1086/512768
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We trace the star formation regions in the SMC and study their properties. The size and spatial distribution of these regions are found to support the hierarchical scenario of star formation, and an evaluation of their intensity contributes to the understanding of the various stages of star formation. Their connection to the LMC-SMC close encounter about (0: 9Y2); 10(8) yr ago is investigated as well. The SMC, being almost edge-on, does not easily reveal these areas, as is the case with the LMC. However, a study through multiwavelength (e. g., optical, IR, and radio) images has proved very useful. A selection of areas, with enhanced 60 and 100 mu m IR flux and emission in all IRAS bands, identifies the star-forming regions. All of the identified regions are dominated by early-type stars, and considering their overall size ( in increasing order) a total of 24 aggregates, 23 complexes, and 3 supercomplexes were found. We present their coordinates, dimensions, and IR fluxes. Moreover, we correlate their positions with known associations, supernova remnants, and H II regions and discuss their activity.
引用
收藏
页码：2179 / 2186
页数：8
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