哈勃深空(Hubble Deep Field, HDF)是一张由哈勃空间望远镜所拍摄的小区域夜空影像。拍摄位置在大熊座,影像的范围仅144弧秒,等于是100米外的一颗网球。由于拍摄目标太暗淡,整张影像由哈勃空间望远镜上的第二代广域和行星照相(WFPC2)进行342次曝光叠加而成,拍摄时间是连续10天,从1995年12月18日至12月28日。 来源...
The article focuses on the Hubble Deep Field (HDF), an image of a small region in the constellation Ursa Major, constructed from observations by the Hubble Space Telescope (HST) and its contributi...
Hubble Ultra Deep Field 2012. Hubble Space Telescope (HST) infrared image of distant galaxies in a region of the sky in the constellation of Fornax. This region was chosen for its lack of foreground stars, enabling long-exposure times for observations of distant galaxies billions of years distan...
Define Hubble Deep Field. Hubble Deep Field synonyms, Hubble Deep Field pronunciation, Hubble Deep Field translation, English dictionary definition of Hubble Deep Field. n. An image taken by the Hubble Space Telescope of a small area of sky located in th
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Hubble Deep Field n. An image taken by the Hubble Space Telescope of a small area of sky located in the constellation Ursa Major and chosen because it contains few obstacles that interfere with deep-space imaging. The long exposure time used enabled imaging of distant galaxies as they appeared...
学术范收录的null Three-micron Imaging of the Hubble Deep Field,目前已有全文资源,进入学术范阅读全文,查看参考文献与引证文献,参与文献内容讨论。学术范是一个在线学术交流社区,收录论文、作者、研究机构等信息,是一个与小木虫、知乎类似的学术讨论论坛,也是一个
Photometric redshifts for galaxies in the Hubble Deep Field are measured. Luminosity functions show steepening of the faint-end slope and mild brightening of M* out to z~3, followed by a decline at higher z; an excess of faint, star-forming galaxies is seen at low z. Our results are...
We present the deepest sub-mm survey, taken with the SCUBA camera on the James Clerk Maxwell Telescope (JCMT) and centred on the Hubble Deep Field (HDF). The high source density on this image implies that the survey is confusion-limited below a flux density of 2 mJy. However within the...