Shock-Induced Starburst and Star Cluster Formation in Colliding Galaxies

被引：0

作者：

Saitoh, Takayuki R. ^{[1
]}

Daisaka, Hiroshi ^{[2
]}

Kokubo, Eiichiro ^{[1
,3
,4
]}

Makino, Junichiro ^{[1
,3
]}

Okamoto, Takashi ^{[4
]}

Tomisaka, Kohji ^{[1
,3
,4
,5
]}

Wada, Keiichi ^{[1
,3
]}

Yoshida, Naoki ^{[6
]}

机构：

[1] Natl Inst Nat Sci, Natl Astron Observ Japan, Div Theoret Astron, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan

[2] Hitotsubashi Univ, Grad Sch Commerce & Management, Kunitachi, Tokyo 1868601, Japan

[3] Natl Astron Observ Japan, Ctr Computat Astrophys, Mitaka, Tokyo 1818588, Japan

[4] Grad Univ Adv Study, Sch Phys Sci, Mitaka, Tokyo 1818588, Japan

[5] Univ Tsukuba, Ctr Computat Sci, Tsukuba, Ibaraki 3058577, Japan

[6] Univ Tokyo, Inst Phys & Math Univ, Kashiwa, Chiba 2778568, Japan

来源：

GALAXY WARS: STELLAR POPULATIONS AND STAR FORMATION IN INTERACTING GALAXIES | 2010年 / 423卷

关键词：

TO-LIGHT RATIOS; GLOBULAR-CLUSTERS; INTERACTING GALAXIES; SIMULATIONS; MERGERS;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We performed high resolution simulations of galaxy-galaxy merging in order to investigate the mechanism of a starburst. The multiphase nature of the interstellar medium is correctly taken into account in our model, which allows the use of a realistic star formation model. In these simulations, we for the first time found that the shock-induced starburst involving star cluster (SC) formation takes place during the first encounter. Detailed analyses show that the SC formation is mainly driven by hierarchical mergings of proto (smaller) SCs. Our result implies that SCs can become much more massive than the local Jeans mass of the SC forming region.

引用

页码：185 / +

页数：2

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