APOD 081007:恒星风吹出的尘埃山脉——哈勃10周年纪念图
本帖最后由 gohomeman1 于 2009-12-17 14:34 编辑时间是比较久了，这是为索引帖发的
Astronomy Picture of the Day
Discover the cosmos!Eachday a different image or photograph of our fascinating universe isfeatured, along with a brief explanation written by a professionalastronomer.
http://antwrp.gsfc.nasa.gov/apod/image/0810/ngc3324_hst.jpg
2008 October 7
Dust Mountains in the Carina Nebula
船底座大星云中的尘埃山脉
Credit: NASA,ESA,Hubble Heritage (STScI/AURA); Acknowledgement: N. Smith et al. (JHU)
Explanation:
Bright young stars sometimes sculpt picturesque dust mountains soon after being born.Created quite by accident, the energetic light and winds from these massive newborn stars burn away accumulations of dark dust and cool gas in a slow but persistent manner.Such is the case in NGC 3324, a star forming region near the edge of NGC 3372, the energetic and expansive Carina Nebula.Pictured above, in scientifically assigned colors, is only a small part of NGC 3324.The Carina Nebula itself is one of the largest star forming regions known and home to Eta Carinae, one of the most unstable and variable stars known.The above image was created from archived Hubble Space Telescope data in honor of the 10th anniversary of the Hubble Heritage Project. The Hubble Heritage Project has created, so far, nearly 130 visually stunning images.
由于语言环境的不同，我把英文的语句全部重排了顺序。他们喜欢倒叙，我们更喜欢顺着说。
本图是Hubble传承项目组10周年的纪念图，哈勃遗产项目组迄今为止已经创建了130个左右令人震撼的好图（比如我们看到的M51、M42、NGC 3372、M81、M82等等，我记得下过200MB的jpg）。本图是人工配色的（就是说不是天然色），仅仅是NGC 3324的一角。NGC 3324是充满活力的船底座大星云边缘的一块恒星形成区。船底座大星云本身就是超大质量恒星之家，比如我们熟知的海山二（Eta Carinae）就是一个相当不稳定的变星（我记得特别为它设定了一类变星——蓝巨变星）。
图本身的说明（英文的第一段）：
明亮的年轻恒星有时候在其诞生不久就会塑造出生动的的尘埃山脉。形成这样的图像是偶然的巧合，但新生大质量恒星的强劲辐射和恒星风却持续而缓慢的吹散暗尘埃和冷气团。事件发生在NGC 3324中。
翻译：gohomeman1，感谢阿Q的指正。
PS: Heritage原意当然是文物、遗产的意思，但是Hubble明明还没作古，怎么就成了文物遗产工程了？去看了官网，还真有这么一说呢。 另外这个项目组与哈勃本身的多少周年纪念完全没关系。
本帖最后由 gohomeman1 于 2009-3-14 17:02 编辑
先上大图链接，再把不算难的翻译完成。
图片尺寸比较大是一方面，另一方面我觉得这个图比较慢。3000x2400大小。
http://antwrp.gsfc.nasa.gov/apod/image/0810/ngc3324_hst_big.jpg
这张图主要是让我们看宇宙之美，虽然这是巧合产生的。 现在提供Hubble官网的超级大图，分辨率非常高，建议使用CS4来打开。
6000 X 2352，10MB
http://imgsrc.hubblesite.org/hu/db/images/hs-2008-34-a-hires_jpg.jpg
7757 X 3041，13MB
http://imgsrc.hubblesite.org/hu/db/images/hs-2008-34-a-full_jpg.jpg 本帖最后由 gohomeman1 于 2009-3-14 19:47 编辑
延伸图片
1、Ground-Based Image of Carina Constellation
地面望远镜拍摄的船底座星群
http://imgsrc.hubblesite.org/hu/db/images/hs-2008-34-c-web_print.jpg
大图下载
http://imgsrc.hubblesite.org/hu/db/images/hs-2008-34-c-xlarge_web.jpg 本帖最后由 gohomeman1 于 2009-3-14 20:25 编辑
延伸图片2、Digitized Sky Survey Image of the Carina Nebula Complex
船底座大星云的数字巡天全图
http://imgsrc.hubblesite.org/hu/db/images/hs-2008-34-d-web_print.jpg
大图下载链接 （链接是可用的，图片却不知道是什么格式的，下载后打不开它）。
http://imgsrc.hubblesite.org/hu/db/images/hs-2008-34-d-xlarge_web.jpg 延伸图片3、Ground-Based Image of NGC 3324 in the Carina Nebula Complex
地面望远镜拍的NGC 3324全图
http://imgsrc.hubblesite.org/hu/db/images/hs-2008-34-e-web_print.jpg
大图下载
http://imgsrc.hubblesite.org/hu/db/images/hs-2008-34-e-xlarge_web.jpg 说明第1楼配色的图片，与我们通常见到的配色表一样，红色是S，绿色是H-α和N，蓝色是O。 本帖最后由 gohomeman1 于 2009-3-14 20:46 编辑
http://heritage.stsci.edu/commonpages/common_images/heritage_title.jpg
本图、文字位于这个链接
http://heritage.stsci.edu/2008/34/
合成效果截图 论坛好慢啊…………
Hubble官网原文
Hubble Image of NGC 3324
The landmark 10th anniversary of the Hubble Space Telescope's HubbleHeritage Project is being celebrated with a 'landscape' image from thecosmos. Cutting across a nearby star-forming region are the "hills andvalleys" of gas and dust displayed in intricate detail. Set amid abackdrop of soft, glowing blue light are wispy tendrils of gas as wellas dark trunks of dust that are light-years in height.
The Hubble Heritage Project, which began in October 1998, hasreleased nearly 130 images mined from the Hubble data archive as wellas a number of observations taken specifically for the project. Byreleasing a new, previously unseen Hubble image every month, the team'sintent was to showcase some of the most attractive images ever taken bythe Hubble telescope, and share them with a wide audience. The Heritageteam continues to create aesthetic images that present the universefrom an artistic perspective.
This month's three-dimensional-looking Hubble image shows the edgeof the giant gaseous cavity within the star-forming region called NGC3324. The glowing nebula has been carved out by intense ultravioletradiation and stellar winds from several hot, young stars. A cluster ofextremely massive stars, located well outside this image in the centerof the nebula, is responsible for the ionization of the nebula andexcavation of the cavity.
The image also reveals dramatic dark towers of cool gas and dustthat rise above the glowing wall of gas. The dense gas at the topresists the blistering ultraviolet radiation from the central stars,and creates a tower that points in the direction of the energy flow.The high-energy radiation blazing out from the hot, young stars in NGC3324 is sculpting the wall of the nebula by slowly eroding it away.
Located in the Southern Hemisphere, NGC 3324 is at the northwestcorner of the Carina Nebula (NGC 3372), home of the Keyhole Nebula andthe active, outbursting star Eta Carinae. The entire Carina Nebulacomplex is located at a distance of roughly 7,200 light-years, and liesin the constellation Carina.
This image is a composite of data taken with two of Hubble's scienceinstruments. Data taken with the Advanced Camera for Surveys (ACS) in2006 isolated light emitted by hydrogen. More recent data, taken in2008 with the Wide Field Planetary Camera 2 (WFPC2), isolated lightemitted by sulfur and oxygen gas. To create a color composite, the datafrom the sulfur filter are represented by red, from the oxygen filterby blue, and from the hydrogen filter by green.
The Heritage project has released images using several of Hubble'soptical cameras: the Wide Field Planetary Camera (WF/PC), which wasinstalled when the telescope was first deployed in 1990; WFPC2, whichreplaced WFPC in 1993 and is still in service today; and ACS, which wasadded in 2002. After the Hubble Servicing Mission in early 2009, theHubble Heritage team hopes to continue using ACS as well as the newestof the optical cameras, Wide Field Camera 3.
For additional information, contact:
Ray Villard
Space Telescope Science Institute, Baltimore, Md.
410-338-4514
villard@stsci.edu
Keith Noll
Space Telescope Science Institute, Baltimore, Md.
410-338-1828
noll@stsci.edu
Nathan Smith
University of California, Berkeley, Calif.
nathans@astro.berkeley.edu
Object Name: NGC 3324
Image Type: Astronomical
Credit: NASA, ESA, and The Hubble Heritage Team (STScI/AURA)
Acknowledgment: N. Smith (University of California, Berkeley)
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