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Portrait of a dynamic neighbour

机译:动态邻居的肖像

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摘要

Humanity's study of stars and planets stretches back centuries, but our understanding of intermediate objects - brown dwarfs - is relatively primitive. Brown dwarfs are fluid, hydrogen-dominated objects that are generally presumed to form like stars, but that contain insufficient mass to fuse hydrogen into helium. As links between planets and stars, these dwarfs provide clues about the processes of star and planet formation, the physics of interior structure and the behaviour of atmospheres under exotic conditions. But because they are so far away, brown dwarfs are seen as only unresolved points of light in telescope images. So far, observations of these objects have all been measurements of the combined light from their Earth-facing hemisphere that preclude any detailed view of what they look like.
机译:人类对恒星和行星的研究可以追溯到几个世纪之前,但是我们对中间物体(棕矮星)的理解相对原始。褐矮星是流体,氢占主导地位的物体,通常被认为是像恒星一样形成的,但其质量不足以使氢融合成氦。作为行星和恒星之间的联系,这些矮人提供了有关恒星和行星形成过程,内部结构的物理特性以及在特殊条件下大气行为的线索。但是由于它们太远了,因此在望远镜影像中褐色矮星只能被视为未分辨的光点。到目前为止,对这些物体的观察全部是对来自其面向地球的半球的组合光的测量,因此无法详细了解它们的外观。

著录项

  • 来源
    《Nature》 |2014年第7485期|625-626|共2页
  • 作者

    ADAM P. SHOWMAN;

  • 作者单位

    Department of Planetary Sciences, Lunar and Planetary Laboratory, University of Arizona, Tucson, Arizona 85721, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
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