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首页> 外文期刊>Physics in Canada >The Splendours and Miseries of Massive Stars Splendeurs et miseres des etoilesmassives
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The Splendours and Miseries of Massive Stars Splendeurs et miseres des etoilesmassives

机译:大质量恒星的辉煌和苦难Splendeurs et miseres des etoilesmassives

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The most massive stars in the universe are also the most fascinating. Exceedingly rare,theynevertheless play an important role in galactic ecology and in the chemical evolution of thecosmos.They are born in gigantic molecular clouds and they light up with an enormous out-pouring of ultraviolet radiation.Pressure exerted by these forms of light on heavy elementspresent in the stellar atmosphere results in a very powerful wind which enriches the regionsbetween the stars and injects large amounts of energy in their surroundings.The life of mas-sive stars is brief-a hundredth of that of ordinary,sun-like stars-and ends in a giganticexplosion detectable to distances of billions of light-years.With the help of beautiful imagesobtained by the largest ground-based and space telescopes,I will describe the life and deathof these stars which illuminate our universe.
机译:宇宙中最重的恒星也是最迷人的。然而,它们极其稀有,但在银河生态学和宇宙的化学演化中起着重要作用。它们生于巨大的分子云中,并以巨大的紫外线辐射照亮。这些光对重元素的施加压力在恒星大气中会产生非常强大的风,这将充实恒星之间的区域并向其周围注入大量能量。大型恒星的生命很短暂,是普通太阳般恒星的一百分之一,而末端可以探测到数十亿光年的巨大爆炸。借助最大的地面和太空望远镜获得的美丽影像,我将描述照亮我们宇宙的这些恒星的生与死。

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