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科学家发现宇宙黎明时期“黑洞星”_我的网站
A | 据最新一期《自然》杂志报道，美国麻省理工学院、奥地利科学技术研究院等机构研究人员利用詹姆斯·韦布空间望远镜（JWST），在宇宙诞生后约6.6亿年的宇宙黎明时期发现了迄今已知最早的“黑洞星”。这一由快速成长黑洞及致密气体构成的奇特天体，或有助于揭开神秘“小红点”的真实身份，并为解释早期宇宙超大质量黑洞的快速形成提供线索。 超大质量黑洞通常潜伏在大质量星系中心，质量可达太阳的数百万至数十亿倍。 Ikkis, the war drama that will see Amitabh Bachchan's grandson Agastya Nanda's make his theatrical debut will not be released on December 25, as announced before. The release date of the Sriram Raghavan directorial has not been pushed to 2026. The social media handle of Maddock Films announced this and wrote, "This new year, gift yourself courage. Final #Ikkis trailer drops this weekend in theatres. A new chapter unfolds in legendary director Sriram Raghvan’s first war film. The true story of India’s youngest Param Vir Chakra Awardee, Second Lt. Arun Khetarpal. Some heroes die young. #IkkisTrailerOutNow - Link in bio. Experience courage in cinemas. #Ikkis releasing on 1st January 2026." The film will now be released on January 1, 2026. Take a look at the post: View this post on Instagram A post shared by Maddock Films (@maddockfilms) With this new development, producer Dinesh Vijan has once again employed his proven strategy of choosing clarity over clashes, a move that earlier worked in favour of Hindi Medium and Chhaava. Ikkis marks Sriram Raghavan's first war film and brings to life the extraordinary true story of Second Lieutenant Arun Khetarpal, India’s youngest Param Vir Chakra awardee. Besides Agastya, Ikkis will also see the debut of Akshay Kumar's niece Simar Bhatia. What makes Ikkis even more special and emotional is that it will be Dharmendra's posthumous release. This is the last film the actor shot for before passing away in November this year. He plays Agastya's on-screen father, Brigadier M. L. Khetarpal. Pooja Ladha Surti, the film's editor and co-writer, has discussed how Raghavan and Vijan plan to pay tribute to Dharmendra. In a conversation with SCREEN, Pooja shared, “Yes, I am sure Sriram and Dinoo (Dinesh Vijan, producer) will do that. His final performance will speak more than any tribute from us, I feel.” Also Read: Photos: Dharmendra’s Heartfelt BTS Moments From The Sets of Ikkis。然而，科学家一直难以解释，为何在宇宙诞生后仅数亿年，就已经出现了一些质量巨大的黑洞。
B | 此次发现的天体被命名为“MoM-BH*-1”。研究人员原本利用JWST寻找宇宙早期星系，却在观测数据中发现一个异常明亮、颜色偏红的光点。它的尺度只有太阳系大小，但能量输出却约为普通恒星产生的能量上限的1000亿倍，远超普通恒星核聚变所能达到的水平。 与此同时，MoM-BH*-1的光谱还呈现出一种异常强烈的“巴耳末跳跃”，这种光谱特征通常与恒星大气中的致密气体有关。同时，其光谱中几乎没有金属元素的明显痕迹，主要表现为氢和氦的特征。 研究人员模拟发现，极其致密的氢气可形成类似“巨大恒星表面”的气体包层，吸收特定波长的光，从而解释其特殊光谱。 但这仍无法解释它惊人的亮度。进一步分析显示，最符合观测结果的情景是：MoM-BH*-1中心有一个约为太阳质量10万倍的黑洞，周围包裹着近似太阳系大小的致密氢气。黑洞吸积物质释放的能量为整个系统提供动力，外围气体则让它看起来像一颗巨大的恒星——研究人员因此将其称为“黑洞星”。 “黑洞星”的发现还有助于解释JWST近年来频繁发现的神秘“小红点”。这些紧凑、明亮且偏红的天体在早期宇宙中似乎随处可见，却在今天的宇宙中消失殆尽。研究人员发现，如果将类似MoM-BH*-1的天体置于早期星系中，其整体光谱可能与“小红点”高度相似。（记者张佳欣）。
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