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arXiv 0709.0411astro-ph
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由HIROCS发现的COSMOS场中的遥远星系团

Distant galaxy clusters in the COSMOS field found by HIROCS

M. Zatloukal, H. -J. Röser, C. Wolf, H. Hippelein, S. Falter

摘要:

我们提出了第一个高红移星系团候选样本从宇宙领域中发现的HIROCS调查。它是由公开的COSMOS和在COSMOS场0.66平方度部分上的专有H波段数据组合而成的,包括12个红移范围为1.23 < z < 1.55的候选者。我们发现随着红移的增加,蓝色星系团成员的比例也在增加。许多蓝色的成员星系,甚至一些最红的成员星系都表现出扰动的形态以及相互作用的迹象。

英文摘要:

We present the first high-redshift galaxy cluster candidate sample from the HIROCS survey found in the COSMOS field. It results from a combination of public COSMOS with proprietary H-band data on a 0.66 square degree part of the COSMOS field and comprises 12 candidates in the redshift range 1.23 < z < 1.55. We find an increasing fraction of blue cluster members with increasing redshift. Many of the blue and even some of the reddest member galaxies exhibit disturbed morphologies as well as signs of interaction.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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