义举是什么意思| 结肠多发息肉是什么意思| 2004是什么年| 总监是什么级别| 88年属什么的| 榴莲有什么营养| 猪头三是什么意思| 钱学森发明了什么| 什么是子宫腺肌症| 舌头有裂纹什么原因| 左肾肾盂分离什么意思| 双币信用卡是什么意思| 东字五行属什么| 淋巴结炎吃什么药| 云南有什么| 血稠吃什么食物好得快| 狮子男和什么星座最配| 粉色五行属什么| 白羊座男和什么星座最配| 掷是什么意思| 家慈是什么意思| 8月26号是什么星座| 一什么车厢| 手信是什么意思| 通草长什么样图片| 手指头发麻是什么原因| 梦见吵架是什么意思| 散光是什么意思| 摩羯座和什么座最配对| 空调外机为什么会滴水| 尿很臭是什么原因| fog是什么牌子| 鸡粉是什么| 87岁属什么| 后话是什么意思| 什么是沉香木| 三点水山今读什么| 什么水果可以美白| 1951属什么生肖| 彩超检查什么| champion什么意思| 什么地生长| 虎皮羊质是指什么生肖| 孙悟空姓什么| 和南圣众是什么意思| 不可漂白是什么意思| 城隍爷叫什么名字| 宛字五行属什么| 什么时候立夏| 十月十二号是什么星座| 手脱皮什么原因| 他不懂你的心假装冷静是什么歌| 添堵是什么意思| 洋生姜的功效与作用是什么| 视功能是什么| 外阴白斑是什么样子| 什么的高山填空| 4月28号是什么星座| 什么什么龙什么| 细胞是什么| 铁皮石斛有什么功效| 白带异味是什么原因| 治疗神经痛用什么药最有效| 总胆红素偏高什么意思| 壁虎进家里预示什么| 中度脂肪肝吃什么药| 虎都男装属于什么档次| 冶游史是什么意思| 为什么流鼻血| 丹参有什么功效| 怀孕后的分泌物是什么样的| cyan是什么颜色| 肾炎康复片主要是治疗什么| 1968属什么| 录取通知书是什么生肖| 花中皇后是什么花| 希五行属什么| 什么是闭合性跌打损伤| 房间朝向什么方向最好| 火龙果不能和什么一起吃| 精子是什么| 为什么喝中药会拉肚子| 池字五行属什么| inr医学上是什么意思| 芽孢是什么| 低脂牛奶适合什么人喝| 抓鱼的鸟叫什么| 按摩椅什么品牌最好| 白带增多是什么原因| 0什么意思| 70年出生属什么生肖| 淋巴细胞百分比高是什么意思| 尿尿泡沫多是什么原因| 闪回是什么意思| 老夫老妻什么意思| 什么叫做罹患疾病| 党参长什么样图片| 脸上为什么长斑| 对对子是什么意思| 尾盘放量拉升意味着什么| 什么样的女人水多| 双氢克尿噻又叫什么| 晚上磨牙是什么原因| 为什么要做试管婴儿| 起床气是什么意思| 南瓜吃多了有什么坏处| 气体交换受损与什么有关| 基因突变发生在什么时期| 维生素a是什么| 男性囊肿是什么原因引起的| 陈五行属什么| 枕神经痛吃什么药| 面色晄白是什么意思| 抵触是什么意思| 皮蛋为什么含铅| 毛拉是什么意思| 卤水点豆腐的卤水是什么| 烹饪是什么意思| 8.11是什么星座| 歆五行属什么| 喝水经常呛到是什么原因| 胃胀消化不好吃什么药| 青枝骨折是什么意思| 你什么意思| 孩子高低肩有什么好办法纠正| 双子女喜欢什么样的男生| 脚痛什么原因引起的| 得了子宫肌瘤注意什么| 反流性咽喉炎吃什么药最好| 怀孕前有什么征兆| 憔悴是什么意思| 腰椎间盘突出吃什么好| 小朋友口臭是什么原因| 双向情感障碍是什么病| 迷恋一个人说明什么| 女人阴唇发黑是什么原因| 成五行属性是什么| 1126是什么星座| 什么是托特包| bmi什么意思| 羊肉汤放什么调料| 夏季感冒吃什么药| 带状疱疹用什么药膏| 女性尿血是什么原因引起的| les什么意思| 什么的李子| 未扪及是什么意思| 淋巴净排是什么服务| 面瘫什么意思| 风云际会的意思是什么| 结婚5年是什么婚| 痔疮什么样子| 国老是什么中药| 什么然而止| 母亲生日送什么礼物| 什么的北风| 利可君片是什么药| 精神病挂什么科| 2004年属什么| 手发抖是什么病的先兆| 文献是什么| 白术有什么功效| 手麻木吃什么药| 免疫组织化学染色诊断是什么| 亦或是什么意思| 糖尿病不能吃什么水果| 准确值是什么意思| 经常晕车是什么原因| 易烊千玺原名叫什么| 打嗝和嗳气有什么区别| 蜘蛛痣长什么样| 狐臭和汗臭有什么区别| 笔记本电脑什么品牌好| 什么的天空填词语| 脚气去医院挂什么科| birkin是什么意思| 书房字画写什么内容好| 手足口病吃什么药最好| 鱼不能和什么食物一起吃| 花木兰代表什么生肖| 嗤笑什么意思| 结扎是什么意思| 天荒地老什么意思| 蒙古族的那达慕大会是在什么时候| 吐血拉血是什么病的症状| 老生气会得什么病| 聚酯纤维是什么材料| 女生为什么会来月经| 梦见西红柿什么意思| 副检察长什么级别| 吸血鬼初拥是什么意思| 肛门周围潮湿瘙痒是什么原因| 日常是什么意思| 什么叫托特包| 我们到底什么关系| 阿司匹林肠溶片有什么副作用| model是什么牌子| bps是什么意思| 75属什么生肖| 小孩记忆力差需要补充什么营养| 抽烟肺疼是什么原因| 戊肝是什么病| 右乳钙化灶是什么意思| 鸡蛋为什么不能放冰箱| 小孩腿疼膝盖疼可能是什么原因| 什么能力| 葛优躺是什么意思| 梦见蛇被别人打死是什么兆头| 早上起床口苦吃什么药| 什么是适度水解奶粉| 泄泻病是什么意思| 什么叫夏至| 难怪是什么意思| 全身水肿是什么原因引起的| 亢是什么意思| 手筋鼓起来是什么原因| 兔子的耳朵像什么| 咨客是做什么的| 大腿根部内侧瘙痒用什么药膏| 野鸡吃什么| 逸五行属性是什么| 56年属什么生肖| 语塞是什么意思| 百合什么时候开花| 荨麻疹长什么样图片| 啮齿类动物什么意思| 帝陀表什么档次| 身体发麻是什么原因| 什么是心脑血管疾病| hr是什么意思医学| 倒立对身体有什么好处| 子宫肌瘤吃什么好| 嘴巴起水泡是什么原因| 什么是保守治疗| 肾挂什么科室| 甲状腺结节吃什么散结| 脾肾阳虚吃什么中成药| 略什么意思| 庭长是什么级别| 足本是什么意思| 形婚是什么| 溃疡用什么药| 8月10日是什么星座| 白无常叫什么名字| 锌是补什么的| 甲胎蛋白偏低说明什么| 男人什么时候精子最强| 肚脐左侧疼是什么原因| 企鹅代表什么生肖| 今日立冬吃什么| 烫伤用什么药最好| 讨吃货什么意思| 万劫不复是什么意思| 糜烂性胃炎吃什么药效果好| 三八妇女节送老婆什么礼物好| 吃桃有什么好处| 什么的妈妈| 中药七情指的是什么| 上吐下泻吃什么| 地素女装属于什么档次| 什么的飞机| 嘘寒问暖是什么意思| 狮子女喜欢什么样的男生| 身上有红色的小红点是什么原因| 百度Jump to content

奥巴马为什么要阻止中资收购LED设备厂爱思强?

From Wikipedia, the free encyclopedia
百度   北京商报记者发现,意大利机构的指控尚未传导至中国,两个品牌的光子系列产品仍在国内销售。

A Hubble photo of three gas pillars in the Eagle Nebula. Some squares in the upper-right of the image are black and contain nothing.
The Pillars of Creation in the Eagle Nebula taken by the Hubble Space Telescope in 1995
"Pillars of Creation" within the Eagle Nebula
(animation; 0:15; 11 November 2022)
This video clip shows a visualization of the three-dimensional structure of the Pillars of Creation.
Closer view of one pillar

Pillars of Creation is a photograph taken by the Hubble Space Telescope that depicts elephant trunks of interstellar gas and dust in the Eagle Nebula of the Serpens constellation, some 6,500–7,000 light-years (2,000–2,100 pc; 61–66 Em) from Earth.[1] These elephant trunks had been discovered by John Charles Duncan in 1920 on a plate made with the Mount Wilson Observatory 60-inch telescope.[2][3] They are so named because the gas and dust are in the process of creating new stars, while also being eroded by the light from nearby stars that have recently formed.[4]

Taken on April 1, 1995, it was named one of the top ten photographs from Hubble by Space.com.[5] The astronomers responsible for the photo were Jeff Hester and Paul Scowen from Arizona State University. The region was rephotographed by ESA's Herschel Space Observatory in 2011, again by Hubble in 2014 with a newer camera, and the James Webb Space Telescope in 2022.

Released in 2007, Chandra X-ray Observatory (AXAF) had observed the area in 2001. It did not find many X-ray sources in the towers but was able to observe sources at various X-ray energy levels in the area from young stars.[6]

The image is noted for its global culture impact, being considered the most iconic picture taken by the Hubble Space Telescope[7] and National Geographic noting on its 20th anniversary that the image had been featured on everything from "t-shirts to coffee-mugs".[8]

Name

[edit]

The name is based on a phrase used by Charles Spurgeon in his 1857 sermon "The Condescension of Christ":[9]

In calling the Hubble's spectacular new image of the Eagle Nebula the Pillars of Creation, NASA scientists were tapping a rich symbolic tradition with centuries of meaning, bringing it into the modern age. As much as we associate pillars with the classical temples of Greece and Rome, the concept of the pillars of creation – the very foundations that hold up the world and all that is in it – reverberates significantly in the Christian tradition. When William Jennings Bryan published The World's Famous Orations in 1906, he included an 1857 sermon by London pastor Charles Haddon Spurgeon titled "The Condescension of Christ". In it, Spurgeon uses the phrase to convey not only the physical world but also the force that keeps it all together, emanating from the divine: "And now wonder, ye angels," Spurgeon says of the birth of Christ, "the Infinite has become an infant; he, upon whose shoulders the universe doth hang, hangs at his mother's breast; He who created all things, and bears up the pillars of creation, hath now become so weak, that He must be carried by a woman!"

Composition

[edit]
The Pillars of Creation within the Eagle Nebula (center of photo, overlaid with the original HST image)

The pillars are composed of cool molecular hydrogen and dust that are being eroded by photoevaporation from the ultraviolet light of relatively close and hot stars. The leftmost pillar is about four light-years in length.[10] The finger-like protrusions at the top of the clouds are larger than the Solar System, and are made visible by the shadows of evaporating gaseous globules (EGGs), which shield the gas behind them from intense UV flux.[11] EGGs are themselves incubators of new stars.[12] The stars then emerge from the EGGs, which then are evaporated.

Theorized destruction

[edit]

Images taken with the Spitzer Space Telescope uncovered a cloud of dust in the vicinity of the Pillars of Creation that hypothetically could be a shock wave produced by a supernova.[13] The appearance of the cloud suggests the supernova shockwave would have destroyed the Pillars of Creation 6,000 years ago. Given the distance of roughly 7,000 light-years between Earth and the Pillars of Creation, this would mean that they have actually already been destroyed, but because light travels at a finite speed, this destruction should be visible from Earth in about 1,000 years.[14]

This interpretation of the hot dust has been disputed by an astronomer uninvolved in the Spitzer observations, who argues that a supernova should have resulted in stronger radio and x-ray radiation than has been observed, and that winds from massive stars could instead have heated the dust. If this is the case, the Pillars of Creation will undergo a more gradual erosion.[15]

Photographs

[edit]

Original Hubble Space Telescope photo

[edit]

Hubble's photo of the pillars is composed of 32 different images[16] from four CCD sensors[17] in the Wide Field and Planetary Camera 2 on board Hubble.[18] The photograph was made with light emitted by different elements in the cloud and appears as a different color in the composite image: green for hydrogen, red for singly ionized sulfur and blue for double-ionized oxygen atoms.[4]

The "stair-shaped"[17] missing part of the picture at the top right corner originates from the fact that the camera for the top-right quadrant has a magnified view; when its images are scaled down to match the other three cameras, there is necessarily a gap in the rest of that quadrant.[17] This effect is also present on other WFPC2 images, and can be displayed at any corner depending on how the image has been re-oriented for publication.[19]

The Wide Field and Planetary Camera 2 was replaced by the Wide Field Camera 3, and the former was taken back to Earth where it is displayed in a museum. It was replaced in 2009 as part of a Space Shuttle mission (STS-125).

Herschel's photo

[edit]

In 2010 Herschel Space Observatory captured a new image of the Pillars of Creation in far-infrared wavelengths, which allows astronomers to look inside the pillars and structures in the region, and come to a much fuller understanding of the creative and destructive forces inside the Eagle Nebula.[20]

Revisits

[edit]

In celebration of the 25th anniversary since the launch of the Hubble Space Telescope, astronomers assembled a larger and higher-resolution photograph of the Pillars of Creation which was unveiled in January 2015 at the American Astronomical Society meeting in Seattle. The image was photographed by the Hubble Telescope's Wide Field Camera 3, installed in 2009, in visible light. An infrared image was also taken.[21] The re-imaging has a wider view that shows more of the base of the nebulous columns.[8]

In October 2022, it was unveiled that the James Webb Space Telescope captured a new image of the Pillars of Creation utilizing the NIRCam aboard the spacecraft. The image was able to capture ejections from the formation of young stars still in development in great detail, as seen by the red spots near the edges of the pillars.[22][23]

The most recent visualization of the Pillars of Creation was released by NASA in June 2024.[24] It is a 3D rendering created by images from both the James Webb Space Telescope and the Hubble Space Telescope. NASA described it as "the most comprehensive and detailed multiwavelength movie yet of this star-birthing region."[25]

See also

[edit]

References

[edit]
  1. ^ Clavin, Whitney. "'Elephant Trunks' in Space". Archived from the original on February 5, 2023. Retrieved March 9, 2011.
  2. ^ Duncan, J. C. (1920). "Bright nebulae and star clusters in Sagittarius and Scutum photographed with the 60-inch reflector". The Astrophysical Journal. 51: 4. Bibcode:1920ApJ....51....4D. doi:10.1086/142519.
  3. ^ Oliveira, Joana M. (2008). Star Formation in the Eagle Nebula. arXiv:0809.3735. Bibcode:2008hsf2.book..599O.
  4. ^ a b Embryonic Stars Emerge from Interstellar "Eggs", Hubble news release
  5. ^ Best Hubble Space telescope images from Space.com. [archived copy]
  6. ^ "Chandra :: Photo Album :: The Eagle Nebula (M16) :: 15 Feb 07". chandra.harvard.edu. Retrieved September 17, 2019.
  7. ^ Iain Todd (October 2, 2024). "Hubble's most iconic image? Looking back at the Pillars of Creation". BBC - Sky at Night Magazine. Retrieved November 25, 2024.
  8. ^ a b "Hubble Revisits an Icon, the Pillars of Creation". Science & Innovation. January 5, 2015. Archived from the original on August 4, 2020. Retrieved September 17, 2019.
  9. ^ Devorkin, David H.; Smith, Robert W. (2015). The Hubble Cosmos: 25 Years of New Vistas in Space. National Geographic Society. p. 67. ISBN 9781426215575.
  10. ^ "NOVA | Origins | The Pillars of Creation image 1". PBS. Retrieved February 13, 2012.
  11. ^ "The Birth of Stars". Csep10.phys.utk.edu. Retrieved February 13, 2012.
  12. ^ "A Stunning View Inside an Incubator for Stars – New York Times". The New York Times. November 3, 1995. Retrieved February 13, 2012.
  13. ^ Flagey, Nicholas; et al. (January 2009). "The Eagle Nebula Unveiled by the Spitzer/MIPSGAL Survey". Bulletin of the American Astronomical Society. 41 (1): 37. Bibcode:2009AAS...21332401F.
  14. ^ Lovett, Richard. "Photo in the News: Supernova Destroys "Pillars of Creation"". Archived from the original on January 12, 2007. Retrieved March 13, 2011.
  15. ^ Shiga, David (January 10, 2007). "'Pillars of creation' destroyed by supernova". Archived from the original on March 17, 2015. Retrieved May 4, 2012.
  16. ^ "NOVA | Origins | The Pillars of Creation image 3". PBS. Retrieved February 13, 2012.
  17. ^ a b c "NOVA | Origins | The Pillars of Creation image 2". PBS. Retrieved February 13, 2012.
  18. ^ "NOVA | Origins | The Pillars of Creation image 1". PBS. April 1, 1995. Retrieved February 13, 2012.
  19. ^ for example, this image of Seyfert's Sextet has the effect at bottom-left corner
  20. ^ "Revisiting the 'Pillars of Creation'". NASA. January 18, 2012. Archived from the original on September 10, 2019. Retrieved January 20, 2012.
  21. ^ "Hubble Goes High-Definition to Revisit Iconic 'Pillars of Creation'". NASA. January 5, 2015. Retrieved January 6, 2015.
  22. ^ Adkins, Jamie (October 18, 2022). "NASA's Webb Takes Star-Filled Portrait of Pillars of Creation". NASA. Retrieved October 19, 2022.
  23. ^ Overbye, Dennis (October 19, 2022). "Webb Telescope Captures New View of 'Pillars of Creation' – The NASA space observatory's infrared eye finds out what's going on within the cloudy cosmic nursery". The New York Times. Retrieved October 21, 2022.
  24. ^ "Pillars of Creation Star in New Visualization from NASA's Hubble and Webb Telescopes – NASA Science". science.nasa.gov. June 26, 2024. Retrieved June 29, 2024.
  25. ^ NASA Goddard (June 26, 2024). Pillars of Creation Star in New Visualization from NASA's Hubble and Webb Telescopes. Retrieved June 29, 2024 – via YouTube.
[edit]
什么山不能爬脑筋急转弯 gs是什么 什么望外 手掌很红是什么原因 小便多是什么原因
六字真言是什么意思 design是什么牌子 有里面没有两横是什么字 三十三天都是什么天 五月10号是什么星座
维c什么时候吃效果最好 经常放响屁是什么原因 铁蛋白偏低是什么意思 严重贫血吃什么补的快 迅雷不及掩耳之势是什么意思
阿司匹林治什么病 贲临是什么意思 男孩过生日送什么礼物好 等不到天黑烟火不会太完美什么歌 瘢痕是什么意思
什么床垫最健康hcv9jop7ns2r.cn 为什么硬不起来hcv7jop4ns7r.cn 体感是什么意思tiangongnft.com 小翅膀车标是什么车dayuxmw.com 拱是什么意思hcv7jop6ns6r.cn
兔子可以吃什么水果hcv8jop5ns6r.cn 第一胎打掉会有什么影响hcv8jop4ns9r.cn 如痴如醉是什么意思hcv9jop5ns9r.cn 深海鱼油的作用是什么hcv7jop6ns8r.cn 豆浆和豆奶有什么区别hcv9jop6ns8r.cn
什么东西补钙sscsqa.com 为什么叫北洋政府aiwuzhiyu.com 风加具念什么shenchushe.com 晚上喝蜂蜜水有什么好处hcv8jop3ns1r.cn 金钱骨是什么部位jiuxinfghf.com
癫疯病早期有什么症状kuyehao.com 左侧附件区囊性回声是什么意思hcv8jop7ns8r.cn 肛门瘙痒用什么药hcv9jop1ns4r.cn 人为什么会失眠hcv8jop3ns8r.cn 尿蛋白高不能吃什么食物hcv8jop2ns2r.cn
百度