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土星环在韦伯对环行星的观测中闪耀

土星环在韦伯对环行星的观测中闪耀

编者注: 这篇文章重点介绍了韦伯科学正在进行中的数据,这些数据尚未通过同行评审过程。


 土星及其部分卫星的图像,由詹姆斯·韦伯太空望远镜的 NIRCam 仪器于 2023 年 6 月 25 日拍摄。在这张单色图像中,NIRCam 滤光片 F323N(3.23 微米)以橙色色调进行颜色映射。从太空望远镜科学研究所下载带标记和未标记的全分辨率图像。图片来源:NASA、ESA、CSA、STScI、M. Tiscareno(SETI 研究所)、M. Hedman(爱达荷大学)、M. El Moutamid(康奈尔大学)、M. Showalter(SETI 研究所)、L. Fletcher(爱达荷大学)莱斯特)、H. Hammel(AURA);J. DePasquale (STScI) 的图像处理

2023 年 6 月 25 日,美国宇航局詹姆斯·韦伯太空望远镜转向著名的土星环,首次对土星进行近红外观测。韦伯 NIRCam(近红外相机)的最初图像已经让研究人员着迷。

在望远镜观察到的红外波长下,土星本身显得非常黑暗,因为甲烷气体吸收了几乎所有落在大气层上的阳光。然而,冰环保持相对明亮,导致土星在韦伯图像中出现不寻常的外观。

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