arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2404.04414astro-ph.CO
收藏

OLIMPO:一个气球载SZE成像仪,用于探测ICM动力学和WHIM

OLIMPO: a Balloon-Borne SZE Imager to Probe ICM Dynamics and the WHIM

Jack Sayers, Camille Avestruz, Ritoban Basu Thakur, Elia Stefano Battistelli, Esra Bulbul, Federico Caccioti, Fabio Columbro, Alessandro Coppolecchia, Scott Cra… 展开作者

Jack Sayers, Camille Avestruz, Ritoban Basu Thakur, Elia Stefano Battistelli, Esra Bulbul, Federico Caccioti, Fabio Columbro, Alessandro Coppolecchia, Scott Cray, Giuseppe D'Alessandro, Paolo de Bernardis, Marco de Petris, Shaul Hanany, Luca Lamagna, Erwin Lau, Silvia Masi, Allesandro Paiella, Giorgio Pettinari, Francesco Piacentini, Eitan Rapaport, Larry Rudnick, Irina Zhuravleva, John ZuHuone

AI总结:

OLIMPO气球载SZE成像仪将通过对低红移星系团和纤维状结构的高分辨率多频段观测,结合X射线和射电数据,揭示星系团内介质动力学及温热星系际介质的热力学性质。

摘要:

OLIMPO是一个拟议的南极气球载Sunyaev-Zel'dovich效应(SZE)成像仪,旨在研究与结构形成相关的气体动力学,以及位于连接纤维状结构中的温热星系际介质(WHIM)的性质。在为期25天的飞行中,OLIMPO将在145、250、365和460 GHz四个频段对总共10个z~0.05的星系团和8个星系团间桥进行成像,角分辨率为1.0'-3.3'。这些图像将比CMB-S4和CCAT-P计划中的图像显著更深,并且对我们低红移目标的大角尺度具有出色的保真度,而这些大角尺度很难从地面进行探测。结合来自eROSITA和XRISM的X射线数据,我们将通过利用运动学SZE、X射线光谱学以及ICM涨落功率谱测量星系团内部介质(ICM)的速度结构,将我们目前对星系团的静态认识转变为一幅完整的动力学图景。来自ASKAP和MeerKAT的射电观测将用于更好地理解ICM湍流和激波与相对论性等离子体之间的联系。在星系团边界之外,我们将把OLIMPO的热SZE图像与eROSITA的X射线成像相结合,测量位于纤维状结构中的WHIM的热力学性质,从而更好地理解其特性及其对总重子物质预算的贡献。

英文摘要:

OLIMPO is a proposed Antarctic balloon-borne Sunyaev-Zel'dovich effect (SZE) imager to study gas dynamics associated with structure formation along with the properties of the warm-hot intergalactic medium (WHIM) residing in the connective filaments. During a 25 day flight OLIMPO will image a total of 10 z~0.05 galaxy clusters and 8 bridges at 145, 250, 365, and 460 GHz at an angular resolution of 1.0'-3.3'. The maps will be significantly deeper than those planned from CMB-S4 and CCAT-P, and will have excellent fidelity to the large angular scales of our low-z targets, which are difficult to probe from the ground. In combination with X-ray data from eROSITA and XRISM we will transform our current static view of galaxy clusters into a full dynamic picture by measuring the internal intra-cluster medium (ICM) velocity structure with the kinematic SZE, X-ray spectroscopy, and the power spectrum of ICM fluctuations. Radio observations from ASKAP and MeerKAT will be used to better understand the connection between ICM turbulence and shocks with the relativistic plasma. Beyond the cluster boundary, we will combine thermal SZE maps from OLIMPO with X-ray imaging from eROSITA to measure the thermodynamics of the WHIM residing in filaments, providing a better understanding of its properties and its contribution to the total baryon budget.

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。

↑