释义 |
quasars 英k'weɪzɑːz美k'weɪzɑːz COCA³⁰⁶²⁹BNC³⁴⁹⁵⁷ 基本英英例句例句 类星体¹⁰⁰原型quasar的复数 名词 quasar: a starlike object that may send out radio waves and other forms of energy; many have large red shiftsWhat arequasarsand active galactic nuclei?甚麽是类星体和活跃星系核? Quasars are the highly energetic cores of distant galaxies.类星体是遥远星系的极为活跃的核心体。 An unusual class of objects, ULXs emit more X- rays than stars, but less than quasars. 一类不寻常的对象,超亮度 X射线源比恒星释放出更多的 X射线,但比类星体的少。 yeeyan In the early universe, collisions—and hence quasars— occurred more often because galaxies were packed much more closely together. 宇宙形成早期,碰撞时有发生——那时星系的密集程度远胜于今,因此类星体也普遍存在。 yeeyan The black holes in question are at the centres of quasars. 我们所讨论的黑洞位于类星体的中心。 ecocn To do this, it will examine what happens to the beams coming from faint, distant quasars as they pass through the cosmic web. 它将检查当衰弱而遥远的类星体通过宇宙网时,从它发出的光究竟发生了什么。 ecocn Astronomers using NASA's Spitzer and Chandra space telescopes discovered swarms of similar quasars hiding in dusty galaxies in the distant universe. 利用太空总署的斯皮策和钱德拉空间望远镜,天文学家们在宇宙深处发现了大量隐匿于星尘中的类星体。 yeeyan But the relative abundance of quasars in the first billion years of the universe has puzzled astrophysicists. 但是,类星体在宇宙诞生的前十亿年中的相对来说很丰富一直使天文物理学家迷惑不已。 yeeyan In 1997 Webb’s team at the University of New South Wales in Sydney analysed the light reaching Earth from distant quasars. 1997年,在悉尼新南威尔士大学,韦伯的团队分析了从遥远的类星体到达地球的光。 yeeyan Just last week, the first possible direct evidence was announced for dark matter halos around early quasars. 在上周,第一份可能是早期类星体周围的暗物质环的直接证据刚刚公布。 yeeyan Larson figures this scenario for black hole feeding probably applies to the most distant quasars, too. 拉尔森关于哺育黑洞的计算方法可能同样也适用于最遥远的那些类星体。 yeeyan Light emitted from farther away, and thus older, quasars lacked this wavelength, because the light was getting absorbed by neutral helium as well as helium with a single ion— or charged particle. 光线的发射处越远,年龄越大,类星体的光谱会缺失,因为某些波长的光线会被中性氦及氦离子或带电粒子吸收。 yeeyan Near the quasars in time are other, normal galaxies that have likely just passed through a quasar phase, as seen in images released earlier this month. 本月早些时候公布的一些图片显示,在类星体周围适时出现的,是其他那些正常的,刚刚经历了类星体阶段的星系。 yeeyan Once SMBHs reach a critical size they can transform into quasars, which are extremely bright objects as small as a star but as luminous as an entire galaxy. 一旦超大质量黑洞到达了临界的大小它们就可以变成有着恒星大小却如整个星系般闪亮的类星体。 yeeyan Practically side- by-side in time, discovered in separate observations made as part of the Sloan Digital Sky Survey, are compact but bright objects known as quasars. 实际上与此同时,在索隆的数字天空测量的分离观测部分里,这种紧凑但是明亮的物体已经被发现,并被认知为类星体。 yeeyan The light in question comes not from individual stars but from quasars. 正在讨论的光并非源于某颗恒星,而是源于类星体。 ecocn The research is expected to help nail down estimates of even bigger black holes associated with ancient distant galaxies known as quasars. 这项研究有助于人们对于更大体积的黑洞进行估计,而这种黑洞可能与名为类星体的古老星系有关。 yeeyan Their colleagues might be happy probing to the edge of the cosmos looking for exotic things like black holes and quasars and dark matter. 他们的天文学同僚们或许很乐意探索宇宙的边缘以寻找奇特的物质,比如黑洞、类星体和暗物质。 yeeyan These formed shortly after the universe began and they came to the attention of earthling astronomers because quasars are powerful radio sources. 它们紧随宇宙伊始而形成,并因类星体是巨大的无线电波发射源而进入天文学家的视野。 ecocn To do this, it will look at what happens to the light coming from faint, distant quasars as it passes through the web. 要做到上述这点,还要根据微弱而遥远类星体的光经过宇宙网时发生的现象而定。 yeeyan Quasars also seem to be surrounded by halos of dark matter, a cryptic and unseen component of all galaxies. 类星体看上去也被一些暗物质组成的“环”围绕着,这是所有星系都有的一个神秘的,看不见的组成部分。 yeeyan Quasars are the very active centers of galaxies though to surround the central supermassive black hole. 类星体是星系中最活跃的中心,尽管他们围绕着中心特大质量黑洞。 yeeyan |