超新星(Supernova)係一粒星爆炸,同時變成一舊等離子體,一時間變到好光,就好似突然有一粒新嘅星出現。超新星放出來嘅光會響幾個禮拜到幾個月左右就會消失。
超新星有好幾種,而有兩條路可以造成超新星。質量極高嘅星會停止佢核心核聚變,響自身引力之下,外面會向中收縮。另一路係白矮星吸入伴星嘅物質,最後達到 Chandrasekhar Limit,造成熱核爆炸(睇新星)。兩條路都會造成超新星爆炸,將粒星所有嘅嘢都大力彈晒出來。
爆作釋放衝擊波到周圍太空,形成超新星遺蹟。最出名有 SN 1604。
睇埋
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