The spectra show that the stars must have swallowed such planets during their expansive, red-giant stage.
光谱显示，这些恒星在膨胀的红巨星阶段肯定曾经吞没过这些行星。
These major arms have the greatest densities of both young, bright stars and older, so-called red-giant stars.
这些主要臂上有最大密度的年幼明亮恒星和较老的红巨星。
First, it's really old - past the Red Giant phase, when stars balloon in size and swallow up planets in close orbits.
首先，它非常非常老了——它经历过红巨星阶段，这一阶段的恒星会急剧膨胀，吞噬在临近轨道运行的行星。
The bigger a star is, the more rapidly it burns up its fuel, and the quicker it becomes a bloated red giant.
那么这颗恒星越大，其消耗能量的速度就越高，从而其变成一个膨胀红巨星的速度则越快。
One explanation is that HIP 13044 swallowed its inner planets during the red giant phase, which would make the star spin more quickly.
一种解释是HIP 13044在红巨星阶段吞噬了它的一些带内行星，这可能使它自转得更快。
After that it is expected to become a red giant, as the hydrogen that presently comprises it is exhausted and the sun switches to burning helium instead.
之后，据推测太阳会成变成一颗红巨星，因为到那时候现在构成太阳的氢气燃烧殆尽，太阳转而燃烧氦气。
This causes the star's outer layers to expand enormously and to cool and glow red as they do so, rendering the star a red giant.
这使得恒星的外层急剧膨胀，并因冷却而发出红色的光，而成为了一颗红巨星。
When a star similar to the sun fuses most of its hydrogen into helium, then the helium into carbon, the star becomes unstable and puffs out into a red giant.
当一颗类日恒星大部分的氢聚变为氦，氦又聚变成碳的时候，它就变得不再稳定，而膨胀成一颗红巨星。
In another 5 billion years it will swell into a red giant and either consume our planet or bake its surface to concrete.
再过五十亿年，它将膨胀成一颗红巨星，到时就算我们的地球不被它吞并，行星表面也将被烤成混凝土。
In this model, gas flows from the large red giant companion star into a disk and then onto the White Dwarf.
这个模型是指气体从大型红巨星伴星流到白矮星的吸积盘上然后被吸进白矮星中。
The Great Red Spot, one such giant spinning storm, has existed for at least three centuries.
它的大红斑是一个巨大旋转的风暴，存在已经至少3个世纪了。
A66 is a red star located at the lowest end of the red giant branch (near the top of the sub-giant branch) of the globular cluster M4.
A66是位于球状星团m 4红巨星支最底部(近亚巨星支顶部)的一颗红星。
Every 20 years or so the red giant star dumps enough hydrogen gas onto its companion White Dwarf star to set off a brilliant thermonuclear explosion on the White Dwarf's surface.
大约每过20年红巨星向它的白矮伴星上输出足够的氢气在白矮星表面产生一次耀眼的热核爆炸。
The center of the Rosette Nebula, which glows with the red light of ionized hyrdorgen, is fueled by a central cluster of powerful giant stars.
一群强大的巨型恒星点燃蔷薇星云的中心，来自电离氢的红光使其绚丽夺目。
These people were hunters and the site contains remains of the bones of a variety of animals, including elephant, rhinoceros, red deer, ibex, and giant ox.
这些人显然是猎人，遗址里有各种动物的骨头残骸，包括大象、犀牛、马鹿、野山羊和巨大的公牛。
These people, apparently Neanderthals, were hunters and the site contains remains of the bones of a variety of animals, including elephant, rhinoceros, red deer, ibex, and giant ox.
很显然，此地居民是尼安德特人，他们都从事狩猎。该遗址还出土各类动物骨骼遗存，包括大象、犀牛、马鹿、野山羊和体型巨大的公牛。
First, it's really old-past the Red Giant phase, when stars balloon in size and swallow up planets in close orbits.
首先，它太老了——甚至已经经过了红巨星阶段，红巨星阶段的恒星体积会迅速膨胀，并吞没近轨道的行星。
The cluster's evolved red and blue giant stars show up in yellowish and blue tints.
星团中演化了的红巨星、蓝巨星显现出黄、蓝色调。
As it burned through its supply of hydrogen, the star would have swelled to become a so-called red giant, tens, or even hundreds of times its original size.
当燃尽了氢储备后，这颗恒星膨胀成了一颗所谓的红巨星，是原来尺寸大小的几十倍甚至几百倍。
As the nuclear burning moves outward to the fresh material in a shell surrounding the core the star bloats into a so-called red giant.
当核燃烧向外进行到核心周边壳层的新物质时，恒星会膨胀成所谓的红巨星。
As the nuclear burning moves outward to the fresh material in a shell surrounding the core, the star bloats into a so-called red giant.
当核燃烧向外进行到核心周边壳层的新物质时，恒星会膨胀成所谓的红巨星。
The only problem is that the red giant phase will only last a few hundred million years-not long compared to the billions of years that life on earth has been evolving.
唯一的问题是红巨星阶段仅能持续几亿年-无法与地球早期生命形成时的数十亿年时间相比。
Billions of years ago Mira was likely similar to our Sun, but has now become a swollen red giant star, its outer layers of material blowing off into interstellar space.
数十亿年前，苎藁增二是一颗类似我们太阳的恒星，但现在变成了一颗肿胀的红巨星，它外层的物质被吹到星际太空中。
For the first thirty miles the red earth road wound its way through the lowland forest, the giant trees standing in solid ranks alongside and their branches entwined in an archway of leaves above us.
在最初的三十英里里，红土路蜿蜒穿过低地森林，高大的树木整齐地排列在我们的两旁，它们的枝桠在我们头顶上交错成一个树叶拱门。
For the first thirty miles the red earth road wound its way through the lowland forest, the giant trees standing in solid ranks alongside and their branches entwined in an archway of leaves above us.
在最初的三十英里里，红土路蜿蜒穿过低地森林，高大的树木整齐地排列在我们的两旁，它们的枝桠在我们头顶上交错成一个树叶拱门。
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