发射线星 emission line stars
- 早型O,B型星有扩散运动和自转运动,而晚型发射线星则没有明显的扩散或收缩的整体运动。
The expansion and rotation of the early O, B type stars have been found, but the similar motions are not discernible for the late-type stars. - 文中的表1包括100个发射线天体,其中的96个是发射线星系; 其余的对象有3个行星状星云,1个发射线星。
We find a total of 100 emission-line objects, of which 96 are galaxies, the rest being 3 planetary nebulae and 1 star. - 当伴星物质陷落到中子星上时,它就发射出X射线。
As matter falls onto the neutron star, it gives off X-rays.
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