Copyright:Bernard Miller
Text:
Keighley Rockcliffe
(NASA
GSFC,
UMBC CSST,
CRESST II)
中文翻譯:
在天空中出現的耳機是怎麼回事呢？今天的圖片展示了耳機星雲，亦稱為 Headphone Nebula 或 PK 164 +31.1，還有一個別名是 Jones-Emberson 1。這是一個行星星雲，它是即將消亡的類太陽恆星留下的殘骸，微弱地佔據了獵豹座（Lynx）的一個角落，約為滿月直徑的五分之一。紅色和藍綠色的光彩分別代表氫和氧原子，這些原子因為星雲中心的白矮星而興奮和電離。耳機的形狀中，兩個氫的膨脹區域刺破了氧的內部，這使得這個物體成為一系列形狀奇特的星雲之一。這些奇特星雲的形態，讓科學家推測可能有其他恆星或行星伴隨在附近，會攪動這些來自死去恆星的物質。你還可以透過自己的耳機來聆聽哈勃和JWST對行星星雲的聲音化！
原文:
What is a pair of headphones doing in the sky? Today’s image features the Headphone Nebula, also known as PK 164 +31.1 or Jones-Emberson 1. This planetary nebula, the remnant of a dying Sun-like star, faintly occupies an angular region of the Lynx constellation about 1/5th the diameter of the full moon. The red and blue-ish green colors trace hydrogen and oxygen atoms, respectively, that have been excited and ionized by the nebula’s central white dwarf. The headphone shape, where two lobes of hydrogen puncture the inner region of oxygen, adds this object to a long list of oddly shaped nebulae. The morphology of such strange nebulae hint at the presence of a stellar or planetary companion, which can stir the material flowing out from the dying star. You can listen to Hubble and JWST sonifications of planetary nebulae through your very own headphones!
來源:NASA每日圖片
