File:GRB 110328A (captured by the Hubble Space Telescope).jpg
原始文件 (1,200 × 900像素,文件大小:666 KB,MIME类型:image/jpeg)
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描述GRB 110328A (captured by the Hubble Space Telescope).jpg |
NASA's Hubble Space Telescope has pinpointed the source of one of the most puzzling blasts of high-energy radiation ever observed. It is at the very center of a small, distant galaxy, which appears to be sending a beam of radiation directly toward Earth. The 3.8-billion-light-year-distant galaxy appears as a bright blob at the center of the Hubble picture. This observation may support the idea that a supermassive black hole at the core of the galaxy has gravitationally torn apart and swallowed a bypassing star. As the star's gas falls onto the black hole, radiation is ejected along a narrow beam. On March 28, 2011, NASA's Swift satellite, which looks for transient X-rays and gamma rays, detected the first of a string of powerful bursts of high-energy radiation that has lasted for a week. More Hubble observations are planned to see if the core changes brightness. An armada of ground- and space-based telescopes is also watching the object from X-ray through radio wavelengths. The Hubble observations were taken in visible and near-infrared light on April 4, 2011, with the Wide Field Camera 3. This Hubble image was taken in visible light. |
日期 | |
来源 | http://hubblesite.org/newscenter/archive/releases/2011/10/image/b/ (direct link) |
作者 | NASA, ESA, and A. Fruchter (STScI) |
Public domainPublic domainfalsefalse |
本文件完全由NASA创作,在美国属于公有领域。根据NASA的版权方针,NASA的材料除非另有声明否则不受版权保护。(参见Template:PD-USGov/zh、NASA版权方针页面或JPL图片使用方针。) | ||
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水平分辨率 | 72 dpi |
垂直分辨率 | 72 dpi |
使用软件 | Adobe Photoshop CS5 Macintosh |
文件修改日期时间 | 2011-04-04T19:51:30-04:00 |
Exif版本 | 2.2 |