事实上红矮星也很常见,天文学家认为它们是星系中最常见的星体。
Red dwarfs are also common - in fact, astronomers say they are the most common type of star in the galaxy.
事实上红矮星也很常见,天文学家认为它们是星系中最常见的星体。
Red dwarfs are also common -in fact, astronomers say they are the most common type of star in the galaxy.
最近发现椭圆星系里拥有比银河系更多的红矮星,说明宇宙里所有恒星的数量可能是原先预想的三倍。
The discovery that elliptical galaxies have many more red dwarf stars than the Milky Way means that the universe might have three times as many total stars as previously thought.
而且研究人员发现,这些星系的红矮星数量比银河多20倍。
And they discovered that these galaxies were home to 20 times as many red dwarfs as there are in the Milky Way.
吸收特性的力度显示,红矮星数量约占椭圆星系星量的百分之八十,质量则是那些星系总质量的百分之六十。
The strength of the absorption features indicates that red dwarfs account for 80 percent of the number of stars in elliptical galaxies and 60 percent of the total stellar mass in those galaxies.
他们在8个的大型椭圆星系中发现了红矮星发出的微弱信号,这些星系离我们相对较近——它们的距离都在5千万到3亿光年之间。
They found faint signatures of these red dwarf stars in eight massive elliptical galaxies relatively close to us—between 50 million and 300 million light-years away.
在同一期《科学》杂志的另外一篇论文中,另外一个研究小组报道:他们利用开普勒数据发现了一个三星系统,其中包括一颗红巨星和两颗红矮星。
In another paper in the same issue, a different research team reports using Kepler data to detect a system of three stars, which includes a red giant star and two red dwarfs.
Gliese 581g是环绕红矮星gliese 581两颗行星中的其中一颗,它的发现使该行星系内行星数量增加至6颗。
Gliese 581g is one of two new worlds the team discovered orbiting the red dwarf star Gliese 581, bumping that nearby stars family of planets to six.
Gliese 581g是环绕红矮星gliese 581两颗行星中的其中一颗,它的发现使该行星系内行星数量增加至6颗。
Gliese 581g is one of two new worlds the team discovered orbiting the red dwarf star Gliese 581, bumping that nearby stars family of planets to six.
应用推荐