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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
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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Launched in 2013, Telegram allows users to broadcast messages to a following via “channels”, or create public and private groups that are simple for others to access. Users can also send and receive large data files, including text and zip files, directly via the app.The platform said it has more than 500m active users, and topped 1bn downloads in August, according to data from SensorTower.
Telegram Gives Up On Crypto Blockchain Project
Durov said on his Telegram channel today that the two and a half year blockchain and crypto project has been put to sleep. Ironically, after leaving Russia because the government wanted his encryption keys to his social media firm, Durov’s cryptocurrency idea lost steam because of a U.S. court. “The technology we created allowed for an open, free, decentralized exchange of value and ideas. TON had the potential to revolutionize how people store and transfer funds and information,” he wrote on his channel. “Unfortunately, a U.S. court stopped TON from happening.”
