Detecting primordial stars

被引：0

作者：

Panagia, N ^{[1
]}

机构：

[1] ESA, Space Telescope Sci Inst, Baltimore, MD USA

来源：

INITIAL MASS FUNCTION 50 YEARS LATER | 2005年 / 327卷

关键词：

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We discuss the expected properties of the first stellar generations in the Universe. We find that it is possible to discern truly primordial populations from the next generation of stars by measuring the metallicity of high-z star forming objects. The very low background of the future James Webb Space Telescope (JWST) will enable it to image and study first-light sources at very high redshifts, whereas its relatively small collecting area limits its capability in obtaining spectra of z similar to 10-15 first-light sources to either the bright end of their luminosity function or to strongly lensed sources. With a suitable investment of observing time JWST will be able to detect individual Population In supernovae, thus identifying the very first stars that formed in the Universe.

引用

页码：479 / 486

页数：8

共 15 条

[1] On the stability of very massive primordial stars [J].