天装战队护星者

宇宙小红点不只是一个点最新天文研究发现或存在于致密宿主星系_我的网站

豪杰春香

一 | 中新网北京8月24日电 (记者孙自法)宇宙中的小红点究竟是怎样的存在？北京时间8月24日夜间，施普林格·自然旗下专业学术期刊《自然-天文学》在线发表中国学者领衔完成的一篇研究论文认为，小红点可能位于总质量约为太阳10亿倍的小型致密宿主星系中。 WASHINGTON -- Senate Majority Leader Chuck Schumer is headed to Israel this weekend to discuss what resources the United States can provide for its war against Hamas.Schumer, D-N.Y., is leading a bipartisan group of senators to the country “to show the United States' unwavering support for Israel,” his office said. Schumer is the first Jewish majority leader of the Senate and the highest-ranking Jewish elected official in the U.S.The visit comes as Congress is considering how much money and equipment to send to Israel and as two other high-ranking officials, Secretary of State Antony Blinken and Defense Secretry Lloyd Austin, have visited in recent days.Schumer’s office said he will meet with Prime Minister Benjamin Netanyahu, President Isaac Herzog and senior opposition figure Benny Gantz, who is part of a newly formed wartime cabinet in Israel. His office has not released the names of the senators who will be traveling with him. The majority leader just this week returned from a trip to China, where he pressured officials to condemn the brutal attack on Israel by Hamas. The U.S. officials are talking to Israeli officials about what kind of aid is needed to defend against attacks from Hamas and is seeking to avoid an expanded Middle East conflict. The Israeli military directed some 1 million civilians to evacuate northern Gaza “for their own safety and protection,” ahead of a feared Israeli ground offensive. Gaza’s Hamas rulers responded by calling on Palestinians to “remain steadfast in your homes and to stand firm” against Israel.Schumer's visit comes as the Senate is set to return to Washington on Tuesday and debate how much money and equipment to send to Israel and whether to tie an aid package with money for Ukraine in its war against Russia's invasion.。　　这一重要天文发现，为宇宙大爆炸后最初十亿年间小红点等神秘天体的形成提供了新见解。本项研究关于早期宇宙中小红点的艺术概念图(图片来自研究团队)。施普林格·自然供图　　该论文介绍，宇宙小红点是近年来天文学界关注到的遥远的微小红色天体，其中心可能存在超大质量黑洞。

二 | 不过，这些小红点的本质和它们光的来源尚不明确。过去的研究在紫外波段发现部分小红点周围存在微弱的延展成分，可能表明存在宿主星系的特征。

三 | 不过，在光学波段(人眼可见光波段)还鲜有证据可以探测到这些结构成分，而光学波段能更明确地揭示恒星质量。　　在本项研究中，论文共同通讯作者、武汉大学教授丁旭恒和湖南师范大学特聘教授杨里岚与同事及国际合作者一起，结合詹姆斯·韦布空间望远镜217个小红点的图像，揭示出在单张影像中无法明确检测到的微弱光学发射(延伸至中心天体之外的光)。