恒星风状星云rcw58
(原标题: Stellar Wind-Shaped Nebula RCW 58)
2023-02-08
浏览次数: 15
想象一下，前往一颗质量是太阳100倍、亮度是太阳100万倍、表面温度是太阳30倍的恒星。这样的恒星确实存在，其中一些以法国天文学家查尔斯·沃尔夫和乔治·拉叶的名字命名，被称为沃尔夫·拉叶（WR）星。这张照片的中心恒星是WR 40，它位于船底座的方向。与太阳相比，像WR 40这样的恒星寿命快，死得早。它们迅速耗尽核心的氢供应，继续融合更重的核心元素，并在膨胀的同时通过高恒星风喷出外层。在这种情况下，中央恒星WR 40以每秒近100公里的速度喷出大气层，这些外层已经成为膨胀的椭圆形星云RCW 58。几乎超空间：随机APOD生成器
查看原文解释
Imagine traveling to a star about 100 times as massive as our Sun, a million times more luminous, and with 30 times the surface temperature. Such stars exist, and some are known as Wolf Rayet (WR) stars, named after French astronomers Charles Wolf and Georges Rayet. The central star in this image is WR 40 which is located toward the constellation of Carina. Stars like WR 40 live fast and die young in comparison with the Sun. They quickly exhaust their core hydrogen supply, move on to fusing heavier core elements, and expand while ejecting their outer layers via high stellar winds. In this case, the central star WR 40 ejects the atmosphere at a speed of nearly 100 kilometers per second, and these outer layers have become the expanding oval-shaped nebula RCW 58. Almost Hyperspace: Random APOD Generator
© Mike Selby & Mark Hanson; Text: Natalia Lewandowska (SUNY Oswego)