航天 · Universe Today
为什么衰老的恒星的光度突然下降
发布于 · 本站收录 2026-11-11 03:01
当像太阳这样的低质量恒星老化时,它们会离开主序并跟随红巨星分支。当它们上升到这个分支时,它们的亮度稳步增加。但路径中存在一种称为 RGB 亮度凹凸的小问题,它们的亮度会突然下降。
英文原文标题与摘要
Why Aging Stars Suffer A Sudden Luminosity Dip
When low-mass stars like our Sun age, they leave the main sequence and follow the Red Giant Branch. As they ascend this branch, their luminosity steadily increases. But there's a sort of hiccup in the path called the RGB luminosity bump, where their luminosity suddenly dips.
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