吃豆人星云中的恒星形成
(原标题: Star Formation in the Pacman Nebula)
2025-03-26
浏览次数: 34
你可能会认为吃豆星云会吞噬恒星，但实际上它正在形成恒星。在星云内部，星团中年轻的大质量恒星为无处不在的星云发光提供能量。在NGC 281的特色肖像中隐约可见的引人注目的形状是雕刻的尘埃柱和密集的博克球体的轮廓，被炽热的星团恒星强烈的高能风和辐射侵蚀。如果它们存活的时间足够长，这些尘埃结构也可能成为未来恒星形成的地点。NGC 281因其整体形状被戏称为“吃豆星云”，距离仙后座约1万光年。这张清晰的合成图像是在2024年中期在西班牙通过窄带滤光片拍摄的。它结合了星云中氢原子和氧原子的辐射，合成了红、绿、蓝三种颜色。在NGC 281的估计距离上，这幅景象跨越了80光年。
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You'd think the Pacman Nebula would be eating stars, but actually it is forming them. Within the nebula, a cluster's young, massive stars are powering the pervasive nebular glow. The eye-catching shapes looming in the featured portrait of NGC 281 are sculpted dusty columns and dense Bok globules seen in silhouette, eroded by intense, energetic winds and radiation from the hot cluster stars. If they survive long enough, the dusty structures could also be sites of future star formation. Playfully called the Pacman Nebula because of its overall shape, NGC 281 is about 10,000 light-years away in the constellation Cassiopeia. This sharp composite image was made through narrow-band filters in Spain in mid 2024. It combines emissions from the nebula's hydrogen and oxygen atoms to synthesize red, green, and blue colors. The scene spans well over 80 light-years at the estimated distance of NGC 281.
© Juan Montilla (AAE)