在IRAM 30米望远镜上用NIKA对星系团进行高分辨率tSZ制图
High-resolution tSZ cartography of clusters of galaxies with NIKA at the IRAM 30-m telescope
摘要：
热Sunyaev-Zeldovich效应（tSZ）是研究星系团的一个强有力的探测器，与X射线、透镜或光学观测是互补的。先前的arcmin分辨率tSZ观测（{ \it例如} SPT，ACT和Planck）只能对低红移星系团（$z < 0.2$）的团内中等形态进行详细的研究。因此，发展精确的星系团宇宙学需要高角分辨率的观测，以扩展对高红移星系团的理解。NIKA 2是一款宽视场（6.5弧分视场）双波段相机，工作频率为$100 \ {\rm mK}$，包含$\sim 3300$ KID（动态电感探测器），设计用于在150和260 GHz观测毫米天空，角分辨率分别为18和12弧秒。NIKA 2相机已于2015年9月安装在IRAM 30米望远镜（Pico Veleta，西班牙）上。NIKA 2 tSZ观测计划将使我们能够观测到红移范围在0.5和1之间的大样本星系团（50）。作为NIKA 2的探路者，在IRAM 30米望远镜上用NIKA原型观测了几个星系团，以涵盖NIKA 2的各种配置和观测条件。
英文摘要：
The thermal Sunyaev-Zeldovich effect (tSZ) is a powerful probe to study clusters of galaxies and is complementary with respect to X-ray, lensing or optical observations. Previous arcmin resolution tSZ observations ({\it e.g.} SPT, ACT and Planck) only enabled detailed studies of the intra-cluster medium morphology for low redshift clusters ($z < 0.2$). Thus, the development of precision cosmology with clusters requires high angular resolution observations to extend the understanding of galaxy cluster towards high redshift. NIKA2 is a wide-field (6.5 arcmin field of view) dual-band camera, operated at $100 \ {\rm mK}$ and containing $\sim 3300$ KID (Kinetic Inductance Detectors), designed to observe the millimeter sky at 150 and 260 GHz, with an angular resolution of 18 and 12 arcsec respectively. The NIKA2 camera has been installed on the IRAM 30-m telescope (Pico Veleta, Spain) in September 2015. The NIKA2 tSZ observation program will allow us to observe a large sample of clusters (50) at redshift ranging between 0.5 and 1. As a pathfinder for NIKA2, several clusters of galaxies have been observed at the IRAM 30-m telescope with the NIKA prototype to cover the various configurations and observation conditions expected for NIKA2.
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。
