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天文学家确认已知最大星系边界 宽度相当于十七个银河系并排排列_我的网站

A |     这张图像展示了已知最大星系IC1101。图片来源：NASA/ESA/哈勃太空望远镜　　据ScienceNews网站最新报道，包括西班牙天文学家在内的联合团队通过超深成像观测确认已知最大星系边界。这个名为IC1101的星系直径达到约520千秒差距（星系尺度单位），接近170万光年，宽度相当于17个银河系并排排列，而这个星系目前还在成长。　　确定这一尺度的关键，是天文学家获取了迄今对IC1101曝光时间最长、探测最深的影像。这些图像由位于西班牙加那利群岛拉帕尔马岛的艾萨克·牛顿望远镜于早前拍摄。经过最新详细测算，天文学家得以识别这颗巨星系暗淡的外缘，同时算出IC1101的恒星物质总质量约为3.4万亿个太阳质量。    New Delhi, Oct. 12 (UNI) A Delhi Court ordered to frame charges of murder, attempt to murder, rioting, unlawful assembly and other sections including criminal conspiracy against Olympian wrestler Sushil Kumar and 17 others in Junior wrestler Sagar Dhankar murder case. The court fixed the matter for framing of charge on October 15.

Additional Sessions Judge Shivaji Anand after hearing arguments on behalf of Prosecution and Defence counsels said, "From statements and the other circumstances circumscribing the incidents which took place on the intervening night of 04/05.05.2021, the charges are to be framed against the accused persons (namely Sushil Kumar (A1), Prince (A2), Ajay Kumar (A3), Mohit @ Bholi (A4), Manjeet @ Chunnilal (A5), Gulab (A6), Bhupender @ Bhuppi (A7), Rohit Malik @ Sonu (A8), Bijender @ Binder (A9), Anirudh Dahiya (A10), Subhash (A11), Gaurav Loura (A12), Surjeet Grewal @ Kala (A13), Anil Dhiman (A14), Praveen Dabas S/o Late Sahib Singh (A15), Praveen @ Choti (A16), Rahul @ Dhanda (A17) and Parveen Dabas S/o Suresh @ Gunia (A18) u/s 302 IPC read with Section 34 IPC for causing murder of Sagar Dhankhad. Similarly, charges u/s 307 IPC read with section 34 IPC are also to be made against the aforesaid accused persons for causing injuries upon Jai Bhagwan @ Sonu. Charges under Section 323 IPC read with Section 34 IPC be also framed for causing injuries to the other victims. The circumstances under which these offences were committed also make a strong case to frame charges u/s 109, 120-B, 142, 148 & 149 IPC.

The court directed to concerned Jail Superintendent to produce all the accused persons physically on October 15, 2022, for framing of charges in the court.

The court reserved the order on October 3, 2022 after hearing arguments on behalf of the Prosecution and Defence Counsel in murder of wrestler Sagar Dhankar.

Prosecution had submitted before the court that the manner in which Sagar and three others were abducted and brought to Chhatrasal Stadium and after that beaten up mercilessly showing that they wanted to establish their supremacy.

Prosecution contended that there is sufficient evidence to show the intention of the accused persons to kill Sagar Dhankar and there is sufficient evidence to frame charges of murder and abduction against wrestler Sushil Kumar and other accused Persons.

Counsel for Sushil Kumar vehemently opposed the submission of Prosecution by submitting that this is not a case of section 302 (murder) but of 304 (culpable homicide not amounting to murder) IPC. He said," The post-mortem report of the deceased, the injuries inflicted were not sufficient to cause that. "

Wrestler Sagar and Sonu were allegedly beaten up in Chhatrasal stadium on the night of 4 May 2021. Sagar had succumbed to injuries during treatment in the hospital.

UNI XC SHK2100。　　IC1101坐落在距地球超过10亿光年的Abell2029星系团中心，是该星系团中光度最高的星系。

B | 这类星系位居宇宙中最庞大星系之列，其成长方式是通过反复吞并附近较小的星系来不断扩张，这一过程被称作星系同类相食。

C | 　　此前的研究已经暗示IC1101体量巨大，但始终未能精确界定星系本体与外围星系团弥散物质之间的过渡边界。

D | 本次超深观测填补了这一空白。

E | 加那利天体物理研究所的天文学家们在星系边缘识别出带状尾流结构，认为这是IC1101与其他星系发生并合的产物，表明该星系迄今仍在吸积物质，生长并未停止。　　加那利天体物理研究所天文学家卡洛斯·马雷罗-德拉罗萨表示，IC1101展示了涉及反复并合与吸积的星系演化过程在极端尺度上的样貌，是可参照的星系未来演变样本。　　这次边界判定之所以重要，是因为最亮团星系的暗弱外围通常会混入星系团的弥漫星光，导致很难判断巨星系本体的终结位置。

F | IC1101的测量结果为这类天体的尺度研究提供了方法论样本。作为已知最大的星系，它的存在也揭示了在数十亿年的时间尺度上，宇宙中的最大尺度星系结构可以通过持续吞并周围星系而发展到何等极端的规模。（记者张梦然）。

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Published on:05:32:13