期刊
ASTROPHYSICAL JOURNAL LETTERS
卷 706, 期 1, 页码 L192-L196出版社
IOP PUBLISHING LTD
DOI: 10.1088/0004-637X/706/1/L192
关键词
early universe; galaxies: star clusters; globular clusters: general
资金
- SNF
- Zurich CTS
We place constraints on the formation redshifts for blue globular clusters (BGCs), independent of the details of hydrodynamics and population III star formation. The observed radial distribution of BGCs in the Milky Way Galaxy suggests that they formed in biased dark matter halos at high redshift. As a result, simulations of a similar to 1 Mpc box up to z similar to 10 must resolve BGC formation in ACDM. We find that most halo stars could be produced from destroyed BGCs and other low-mass clusters that formed at high redshift. We present a proof-of-concept simulation that captures the formation of globular-like star clusters.
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