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银河系中心的强磁场可能抑制恒星形成
#科学

银河系中心的人马座C(Sagittarius C)是一处物质丰富的恒星育婴室,却长期以来呈现异常低的恒星形成率。天文学家利用韦伯太空望远镜的观测资料推测,该区域中的强磁场可能是抑制恒星形成的主因。人马座C距离银河系中心的超大质量黑洞约 200 光年,是银河中心附近一个重要的恒星形成区域。这里拥有大量高密度的气体与尘埃,理论上应能有效孕育众多恒星,然而实际观测却显示,当地的恒星形成率远低于预期。透过韦伯太空望远镜的红外线观测,天文学家得以穿透稠密的尘埃,窥见银河中心附近的恒星诞生现场。韦伯的影像中,人马座C周围可见大量细长的丝状结构。这类结构过去曾由地面望远镜观测到,韦伯望远镜的资料则提供了更清晰的画面与有力的佐证。研究团队推测,这些丝状结构的形成与当地强磁场密切相关。银河系中央黑洞所产生的强大潮汐力使气体剧烈流动,进而拉伸并增强周围的磁场,而磁场则进一步形塑出这些丝状结构。
NASA Webb Explores Effect of Strong Magnetic Fields on Star Formation
天文館:銀河中心強磁場可能抑制恆星誕生



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银河系中心的强磁场可能抑制恒星形成
#科学

银河系中心的人马座C(Sagittarius C)是一处物质丰富的恒星育婴室,却长期以来呈现异常低的恒星形成率。天文学家利用韦伯太空望远镜的观测资料推测,该区域中的强磁场可能是抑制恒星形成的主因。人马座C距离银河系中心的超大质量黑洞约 200 光年,是银河中心附近一个重要的恒星形成区域。这里拥有大量高密度的气体与尘埃,理论上应能有效孕育众多恒星,然而实际观测却显示,当地的恒星形成率远低于预期。透过韦伯太空望远镜的红外线观测,天文学家得以穿透稠密的尘埃,窥见银河中心附近的恒星诞生现场。韦伯的影像中,人马座C周围可见大量细长的丝状结构。这类结构过去曾由地面望远镜观测到,韦伯望远镜的资料则提供了更清晰的画面与有力的佐证。研究团队推测,这些丝状结构的形成与当地强磁场密切相关。银河系中央黑洞所产生的强大潮汐力使气体剧烈流动,进而拉伸并增强周围的磁场,而磁场则进一步形塑出这些丝状结构。
NASA Webb Explores Effect of Strong Magnetic Fields on Star Formation
天文館:銀河中心強磁場可能抑制恆星誕生

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