科学家画出空前广阔和敏感的暗物质图谱

一个研究小组发布了一个基于Hyper Suprime-Cam on the Subaru Telescope最新获得的图像数据，绘制出空前广阔步和敏感的暗物质图谱。用弱引力透镜技术估算暗物质的分布。研究小组发现，暗物质晕的数量可能与最简单的宇宙学模型所暗示的不一致。这可能是理解宇宙膨胀速度加快的新线索。

1. Satoshi Miyazaki, Masamune Oguri, Takashi Hamana, Masato Shirasaki, Michitaro Koike, Yutaka Komiyama, Keiichi Umetsu, Yousuke Utsumi, Nobuhiro Okabe, Surhud More, Elinor Medezinski, Yen-Ting Lin, Hironao Miyatake, Hitoshi Murayama, Naomi Ota, Ikuyuki Mitsuishi. A large sample of shear-selected clusters from the Hyper Suprime-Cam Subaru Strategic Program S16A Wide field mass maps. Publications of the Astronomical Society of Japan, 2018; 70 (SP1) DOI: 10.1093/pasj/psx120

Unprecedentedly wide and sharp dark matter map

https://www.sciencedaily.com/releases/2018/03/180302101807.htm