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Detroit synagogue president found stabbed to death outside home_我的网站

A |     The president of a Detroit synagogue was found stabbed to death outside her home Saturday morning, police and the synagogue said.The Isaac Agree Downtown Synagogue put out a statement later in the afternoon identifying the victim as board president Samantha Woll.Detroit police responded to a 911 call of an unresponsive person around 6:30 a.m. and found a body outside a home on Joliet Place. The woman, who was not immediately identified by investigators had suffered multiple stab wounds, police said."At this point, we do not have more information, but will share more when it becomes available. May her memory be a blessing," the synagogue said in a Facebook post.In an update shared on Sunday, the Detroit Police chief said in a brief statement that there is no evidence to point to the crime being motivated by antisemitism."The investigation into the death of Ms. Woll remains ongoing. At this time, however, no evidence has surfaced suggesting that this crime was motivated by antisemitism," Chief James White’s statement read.“DPD investigators are working with the FBI to forensically analyze all of the information obtained up to this point in an effort to ascertain the timeline that ultimately led to Ms. Woll's death. Individuals with information that may further this investigation are being interviewed,” his statement continued.Authorities are investigating Woll's death as a homicide, police said on Saturday."Police officers observed a trail of blood leading officers to the victim’s residence, which is where the crime is believed to have occurred," the police said in a statement.The investigation remains ongoing.A law enforcement official briefed on the probe told ABC News that the preliminary investigation has revealed there was likely no forced entry to Woll’s home.Woll's death comes as law enforcement agencies across the country are warning of increased anti-Semitic threats in light of the ongoing Israel-Hamas conflict.Woll had a long career in local politics and worked with several elected officials over the years, according to her LinkedIn page.She recently served as the political director for Michigan Attorney General Dana Nessel's re-election campaign.Nessel released a statement on X, formerly known as Twitter, expressing shock at Woll's murder."Sam was as kind a person as I’ve ever known. She was driven by her sincere love of her community, state and country. Sam truly used her faith and activism to create a better place for everyone," Nessel said in her post which included a photo of Woll.Woll also worked as a deputy district director for U.S. Rep. Elissa Slotkin, D-Mich., who also released a statement on X following her death."She did for our team as Deputy District Director what came so naturally to her: helping others & serving constituents. Separately, in politics & in the Jewish community, she dedicated her short life to building understanding across faiths, bringing light in the face of darkness," Slotkin said.Michigan Gov. Gretchen Whitmer said the state police will be assisting the Detroit Police department in the investigation."My heart breaks for her family, her friends, her synagogue, and all those who were lucky enough to know her. She was a source of light, a beacon in her community who worked hard to make Michigan a better place," she said in a statement.Other Michigan elected officials also expressed their condolences."Decades ago, I shared a day of joy with Sam at the dedication of the newly renovated Downtown Synagogue. It was a project she successfully led with great pride and enthusiasm. Sam’s loss has left a huge hole in the Detroit community," Detroit Mayor Mike Duggan said in a statement to ABC affiliate WXYZ. Woll's funeral was planned for Sunday afternoon, according to WXYZ.Anyone with information is urged to call the Detroit Police's Homicide section at 313-596-2260.ABC News' Ben Siegel and Josh Maroglin contributed to this report. 。      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。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。  此次发现的天体被命名为“MoM-BH*-1”。

B | 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。

C | 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。

D |   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。

E | 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。

F | 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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