{"id":11258,"date":"2022-05-03T02:41:31","date_gmt":"2022-05-02T18:41:31","guid":{"rendered":"http:\/\/www.gocpmall.com\/?p=11258"},"modified":"2022-05-03T02:41:31","modified_gmt":"2022-05-02T18:41:31","slug":"%e7%a7%91%e5%ad%a6%e5%ae%b6%e5%9c%a8%e4%b8%80%e4%b8%aa%e5%b9%b4%e8%bd%bb%e8%a1%8c%e6%98%9f%e7%b3%bb%e7%bb%9f%e4%b8%ad%e5%8f%91%e7%8e%b030%e9%a2%97%e7%b3%bb%e5%a4%96%e5%bd%97%e6%98%9f","status":"publish","type":"post","link":"https:\/\/www.gocpmall.com\/?p=11258","title":{"rendered":"\u79d1\u5b66\u5bb6\u5728\u4e00\u4e2a\u5e74\u8f7b\u884c\u661f\u7cfb\u7edf\u4e2d\u53d1\u73b030\u9897\u7cfb\u5916\u5f57\u661f"},"content":{"rendered":"

\"news
摘要： 在过去的三十年里，天文学家们一直对ß Pictoris这颗恒星非常着迷，因为它使他们能够观察到一个正在形成过程中的年轻行星系统。 据了解，它至少由两颗年轻的行星及彗星组成，这些彗星早在1987年就被发现。这些是迄今为止发现的第一颗围绕太阳以外的恒星运行的彗星。 现在，一个国际研究小组已经发现了30颗这样的系外彗星并确定了其核的大小，其直径在3到14千米之间。据悉，该小组由巴黎天体物理研究所的CNRS研究员Alain Lecavelier des Etangs领导。 据了解，科学家们还能够估计出这些天体的大小分布，即小彗星跟大彗星的比例。这是第一次在太阳系外测量这种分布，它跟围绕太阳运行的彗星的分布惊人地相似。它表明，就像太阳系的彗星一样，ß Pictoris的系外彗星是由一系列的碰撞和破裂形成。 这项工作为行星系统中彗星的起源和演变提供了新的启示。由于地球上的一部分水可能起源于彗星，科学家们正在寻求了解它们对行星特性的影响。 这项研究已于今日发表在《Scientific Reports》上，这是利用NASA的凌日系外行星探测卫星(TESS)对ß Pictoris系统进行156天观测得到的结果。其他即将进行的观测–特别是利用哈勃和詹姆斯-韦伯太空望远镜的观测–应该能让科学家们在未来发现更多的东西。
阅读更多，详细点击（Read More）<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

摘要： 在过去&#3034 […]<\/p>\n","protected":false},"author":1,"featured_media":11259,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[24],"tags":[],"class_list":["post-11258","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-localnews"],"_links":{"self":[{"href":"https:\/\/www.gocpmall.com\/index.php?rest_route=\/wp\/v2\/posts\/11258","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gocpmall.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gocpmall.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gocpmall.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gocpmall.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=11258"}],"version-history":[{"count":0,"href":"https:\/\/www.gocpmall.com\/index.php?rest_route=\/wp\/v2\/posts\/11258\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.gocpmall.com\/index.php?rest_route=\/wp\/v2\/media\/11259"}],"wp:attachment":[{"href":"https:\/\/www.gocpmall.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=11258"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gocpmall.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=11258"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gocpmall.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=11258"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}