愚愚学园 前沿科学 2014年9月4日 Nature

复制链接 | 浏览器收藏 | 打印

nero1981

级别: 副院长

作者资料
发送短消息
加为好友

UID: 69890
精华: 0
发帖: 912
威望: 102 点积分转换
愚愚币: 6507 YYB 在线充值
贡献值: 0 点
在线时间: 6377(小时)
注册时间: 2009-05-29
最后登录: 2017-04-07

楼主发表于: 2014-09-13 13:53

只看楼主 | 小中大

2014年9月4日 Nature

[font="arial,]A slice through the Laniakea supercluster — home: velocity flow streams within our supercluster are shown white, external flows dark blue. The Milky Way is a member of the Local Group of galaxies. The Milky Way is a member of the Local Group of galaxies. Now have sufficient data on the distances and motions of galaxies to be able to describe a much larger level of organization in our corner of the Universe — a supercluster 160 megaparsecs across and containing 1017[font="arial,] solar masses. [font="arial,]Brent Tully et al[font="arial,]. use a new catalogue of ‘peculiar velocities’, line-of-sight departures from coic expansion caused by gravitational perturbation, to develop a map representing the distribution of matter. They identify a ‘home’ supercluster that they name [font="arial,]Laniakea[font="arial,] — from the Hawaiian lani[font="arial,] and akea[font="arial,] (‘heaven’ and ‘spacious’). It includes the Virgo cluster, the Norma, Hydra and Centaurus clusters (also known as the Great Attractor), the Pavo-Indus filament and a number of voids. Cover art: Mark A. Garlick / Source: Daniel Pomarede.[font="arial,]

http://pan.baidu.com/s/1eQ5Wl3O
密*****：