You can literally see the shock coming through the undisturbed atmosphere of the redgiantstar and then the subsequent expansion of that star, "Nugent said."
“你可以清楚地看到震波经过那颗红巨星的未被扰动的大气以及随之而来的恒星的膨胀,”纽金特说。
2
Our Sun is between the lightweight and heavyweight stars. The redgiantstar at the bottom of the graphic is much larger than the other stars in the illustration.
在插图下方的红巨星看起来比其他的恒星都要大,但是它的质量却只有太阳的十几分之一到几分之一。
3
Billions of years ago Mira was likely similar to our Sun, but has now become a swollen redgiantstar, its outer layers of material blowing off into interstellar space.