人魚星雲超新星殘骸
The Mermaid Nebula Supernova Remnant
來源:Neil Corke;
Text: Natalia Lewandowska
(SUNY Oswego)|發表日期:2024-09-18
新恆星誕生於死亡恆星的殘骸。銀河系中的一顆大質量恆星在引力坍縮後死亡,其氣態殘餘物形成了 G 296 . 5 + 10 . 0 超新星殘餘物,我們所看到的美人魚星雲就是其中的一部分。美人魚星雲也被稱為貝塔魚星雲,它是超新星殘餘物中一個不尋常的亞類的一部分,這些超新星殘餘物是雙面的,幾乎是圓形的。這個絲狀星雲最初是在 X 射線中被發現的,現在也是一個經常被研究的射電和伽馬射線源。 這裡可見的藍色是由雙電離氧(OIII)產生的,而深紅色則是由氫氣發出的。事實證明,該星雲的美人魚狀外形有助於測量星際磁場。
原文:New stars are born from the remnants of dead stars. The gaseous remnant of the gravitational collapse and subsequent death of a very massive star in our Milky Way created the G296.5+10.0 supernova remnant, of which the featured Mermaid Nebula is part. Also known as the Betta Fish Nebula, the Mermaid Nebula makes up part of an unusual subclass of supernova remnants that are two-sided and nearly circular. Originally discovered in X-rays, the filamentary nebula is a frequently studied source also in radio and gamma-ray light. The blue color visible here originates from doubly ionized oxygen (OIII), while the deep red is emitted by hydrogen gas. The nebula's mermaid-like shape has proven to be useful for measurements of the interstellar magnetic field.
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