On the formation of primordial stars and Pop III luminous objects

被引：1

作者：

Nishi, R ^{[1
]}

Susa, H ^{[1
]}

Omukai, K ^{[1
]}

机构：

[1] Kyoto Univ, Kyoto 6068502, Japan

来源：

FIRST STARS | 2000年

关键词：

D O I：

10.1007/10719504_49

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We investigate the formation site of the primordial stars, the formation process of them and the feedback on the host clouds. First, the 'cooling diagram' for cosmological low mass objects is shown. We assess the cooling rate taking into account the contribution of H-2, which is not in chemical equilibrium generally. Next, we show the results of the hydrodynamical simulation for primordial star formation, which includes radiative transfer and the chemistry of H-2. Moreover, the feed back by the first generation massive stars is considered. The main feedback consists of two different processes, UV radiation from the stars and energy input by SNe. Finally, we investigate the formation condition of luminous objects and the mass of the Pop III luminous objects is estimated to be several times 10(7) M..

引用

页码：268 / 272

页数：5

共 17 条

[1]

Galli D, 1998, ASTRON ASTROPHYS, V335, P403

[2] THERMAL AND DYNAMICAL PROPERTIES OF A PROTOSTAR AND ITS CONTRACTION TO STAGE OF QUASI-STATIC EQUILIBRIUM [J].