APOD250924 GW250114：旋转黑洞的碰撞
GW250114：旋转黑洞的碰撞
Illustration Credit: Aurore Simonnet[1] (SSU[2]/EdEon[3]), LVK, URI; LIGO Collaboration[4]
英文原文:Explanation: It was the strongest gravitational wave signal yet measured -- what did it show? GW250114 was detected by both arms of the Laser Interferometer Gravitational-wave Observatory (LIGO) in Washington and Louisiana USA earlier this year. Analysis showed that the event was created when two black holes , each of mass around 33 times the mass of the Sun , coalesced into one larger black hole with a mass of around 63 solar masses. Even though the event happened about a billion light years away, the signal was so strong that the spin of all black holes , as well as initial ringing of the final black hole, was deduced with exceptional accuracy . Furthermore, it was confirmed better than before, as previously predicted , that the total event horizon area of the combined black hole was greater than those of the merging black holes . Featured, an artist's illustration depicts an imaginative and conceptual view from near one of the black holes before collision. 说明： 这是人类至今量测到最强的重力波信号──它显示了什么？ 今年稍早，美国[5]华盛顿[6]与路易斯安娜[7]的「激光干涉重力波天文台[8]」（LIGO）侦测臂同时捕捉到了GW250114[9]的信号。 分析结果显示，这个事件源自两个黑洞[10]的合并，每个黑洞的质量约为太阳[11]的 33 倍，最终融合成一个质量约为 63 倍太阳质量的更大黑洞[12]。 即使这场宇宙剧变发生在十亿光年之外，信号仍然强大到足以让科学家首次[13]精确测定所有黑洞[14]的自旋。 此外，这次也更清楚地验证[15]了爱因斯坦广义相对论的一项预测：合并后形成的黑洞，其事件视界[16]的总面积比两个原本黑洞[17]加起来还要大。 图中所示是一幅艺术家绘制的艺术插画[18]，呈现黑洞[19]在碰撞前的想像和概念视图。
明日的图片： open space[20]
Authors & editors: Robert Nemiroff[21] (MTU[22]) & Jerry Bonnell[23] (UMCP[24])
NASA Official: Amber Straughn Specific rights apply[25].
NASA Web Privacy[26], Accessibility[27], Notices[28];
A service of: ASD[29] at NASA[30] / GSFC[31],
NASA Science Activation[32]
& Michigan Tech. U.[33]
太空天文实验室（成功大学物理系） <br/> 编辑：<a href="mailto:hantzong.su@gmail.com" style="color:gray;" target="_blank">苏汉宗</a> <br/> 编辑：<a href="mailto:alfred@ncku.edu.tw" style="color:gray;" target="_blank">陈炳志</a>
编辑：林昱丞[34]
[1]https://auroresimonnet.com/about-me/
[2]https://phys-astro.sonoma.edu/
[4]https://www.ligo.caltech.edu/page/ligo-scientific-collaboration
[5]https://www.cia.gov/the-world-factbook/countries/united-states/
[6]https://en.wikipedia.org/wiki/Washington_(state)
[7]https://en.wikipedia.org/wiki/Louisiana
[8]https://www.ligo.caltech.edu/
[9]https://en.wikipedia.org/wiki/GW250114
[10]https://spaceplace.nasa.gov/black-holes/
[11]https://science.nasa.gov/sun/
[12]https://science.nasa.gov/universe/black-holes/
[13]https://i.pinimg.com/736x/ea/de/1f/eade1feca67faed06570cf5495621746.jpg
[14]http://apod.nasa.gov/apod/ap191001.html
[15]https://en.wikipedia.org/wiki/Black_hole_thermodynamics#Second_law_2
[16]https://science.nasa.gov/universe/black-holes/anatomy/
[17]http://apod.nasa.gov/apod/ap190414.html
[18]https://www.ligo.caltech.edu/WA/image/ligo20250910a
[19]https://apod.nasa.gov/htmltest/rjn_bht.html
[20]http://apod.nasa.gov/apod/ap250925.html
[21]http://www.phy.mtu.edu/faculty/Nemiroff.html
[23]https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
[25]http://apod.nasa.gov/apod/lib/about_apod.html#srapply
[26]https://www.nasa.gov/about/highlights/HP_Privacy.html
[27]https://www.nasa.gov/general/accessibility/
[28]https://www.nasa.gov/privacy/
[29]https://astrophysics.gsfc.nasa.gov/
[31]https://www.nasa.gov/centers/goddard/
[32]https://science.nasa.gov/learners
[34]http://apod.nasa.gov/apod/l28091033@gs.ncku.edu.tw
http://apod.nasa.gov/apod/ap250924.html
http://sprite.phys.ncku.edu.tw/astrolab/mirrors/apod/ap250924.html
