arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1609.01110astro-ph.CO
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作为宇宙学和暗物质探测器的星系团

Galaxy clusters as probes for cosmology and dark matter

Elia S. Battistelli, Carlo Burigana, Paolo de Bernardis, Alexander A. Kirillov, Gastao B. Lima Neto, Silvia Masi, Hans U. Norgaard-Nielsen, Peter Ostermann, Mat… 展开作者

Elia S. Battistelli, Carlo Burigana, Paolo de Bernardis, Alexander A. Kirillov, Gastao B. Lima Neto, Silvia Masi, Hans U. Norgaard-Nielsen, Peter Ostermann, Matthieu Roman, Piero Rosati, Mariachiara Rossetti

摘要:

近年来,在通过广域测量,特别是利用Sunyaev-Zel 'dovich(SZ)效应,建立低和高红移的新星系团样本方面取得了重大进展。一个大的努力正在进行中,以确定和表征这些新的系统与光学/近红外和X射线设施,从而开辟新的途径来约束宇宙学模型,使用结构生长和几何测试。对星系团的普查对再电离机制和时代提出了限制,这需要与最近宇宙微波背景(CMB)实验对再电离光学深度的限制相协调。SZ效应测量的未来进展将包括(明确)直接测量运动学SZ效应的可能性,建立一个更大的能够研究高红移宇宙的星系团目录,并使(空间)解决星系团地图,甚至光谱能力(光谱)解决SZ效应的相对论修正。

英文摘要:

In recent years, significant progress has been made in building new galaxy clusters samples, at low and high redshifts, from wide-area surveys, particularly exploiting the Sunyaev--Zel'dovich (SZ) effect. A large effort is underway to identify and characterize these new systems with optical/NIR and X-ray facilities, thus opening new avenues to constraint cosmological models using structure growth and geometrical tests. A census of galaxy clusters sets constraints on reionization mechanisms and epochs, which need to be reconciled with recent limits on the reionization optical depth from cosmic microwave background (CMB) experiments. Future advances in SZ effect measurements will include the possibility to (unambiguously) measure directly the kinematic SZ effect, to build an even larger catalogue of galaxy clusters able to study the high redshift universe, and to make (spatially-)resolved galaxy cluster maps with even spectral capability to (spectrally-)resolve the relativistic corrections of the SZ effect.

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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