心形天线星系
(原标题: The Heart Shaped Antennae Galaxies)
2024-02-07
浏览次数: 12
这两个星系真的相互吸引吗？是的，在引力作用下，结果是一个巨大的标志性心脏——至少现在是这样。图为编号为NGC 4038和NGC 4039的一对星系，被称为天线星系。因为它们距离我们只有6000万光年，按星系间的标准来看很近，所以这对星系是夜空中被研究得最好的相互作用星系之一。它们强烈的吸引力始于大约10亿年前，当时它们异常地靠得很近。当两个星系相互作用时，它们的恒星很少碰撞，但当它们的星际气体碰撞在一起时，就会形成新的恒星。一些新的恒星已经形成，例如，从跳舞的双星两侧伸出的长长的触角中可以看到。当星系合并完成时，可能在10亿年后，数十亿颗新恒星可能已经形成。开放科学：浏览天体物理学源代码库中的3300多个代码
查看原文解释
Are these two galaxies really attracted to each other? Yes, gravitationally, and the result appears as an enormous iconic heart -- at least for now. Pictured is the pair of galaxies cataloged as NGC 4038 and NGC 4039,known as the Antennae Galaxies. Because they are only 60 million light years away, close by intergalactic standards, the pair is one of the best studied interacting galaxies on the night sky. Their strong attraction began about a billion years ago when they passed unusually close to each other. As the two galaxies interact, their stars rarely collide, but new stars are formed when their interstellar gases crash together. Some new stars have already formed, for example, in the long antennae seen extending out from the sides of the dancing duo. By the time the galaxy merger is complete, likely over a billion years from now, billions of new stars may have formed. Open Science: Browse 3,300+ codes in the Astrophysics Source Code Library
© Kent E. Biggs