猎户座原恒星HH-34
巨图下载地址：http://www.eso.org/gallery/d/3786-4/phot-40b-99.tif 72MBhttp://www.eso.org/gallery/d/4444-2/phot-40b-99.jpg
Three-colour composite of the young object Herbig-Haro 34 (HH-34), now in the protostar stage of evolution. It is based on CCD frames obtained with the FORS2 instrument in imaging mode, on November 2 and 6, 1999.
The composite of three images was taken through three different filters: B (wavelength 429 nm; Full-Width-Half-Maximum (FWHM) 88 nm; exposure time 10 min; here rendered as blue), H-alpha (centered on the hydrogen emission line at wavelength 656 nm; FWHM 6 nm; 30 min; green) and S II (centrered at the emission lines of inonized sulphur at wavelength 673 nm; FWHM 6 nm; 30 min; red) during a period of 0.8 arcsec seeing. The field shown measures 6.8 x 6.8 arcmin and the images were recorded in frames of 2048 x 2048 pixels, each measuring 0.2 arcsec. North is up; East is left.
This object has a remarkable, very complicated appearance that includes two opposite jets that ram into the surrounding interstellar matter. This structure is produced by a machine-gun-like blast of "bullets" of dense gas ejected from the star at high velocities (approaching 250 km/sec). This seems to indicate that the star experiences episodic "outbursts" when large chunks of material fall onto it from a surrounding disc.
HH-34 is located at a distance of approx. 1,500 light-years, near the famous Orion Nebula, one of the most productive star birth regions. Note also the enigmatic "waterfall" to the upper left, a feature that is still unexplained. Composite of three images taken through three different filters: B (wavelength 429 nm; Full-Width-Half-Maximum (FWHM) 88 nm; exposure time 10 min; here rendered as blue), H-alpha (centered on the hydrogen emission line at wavelength 656 nm; FWHM 6 nm; 30 min; green) and S II (centrered at the emission lines of inonized sulphur at wavelength 673 nm; FWHM 6 nm; 30 min; red) during a period of 0.8 arcsec seeing. The field shown measures 6.8 x 6.8 arcmin and the images were recorded in frames of 2048 x 2048 pixels, each measuring 0.2 arcsec. North is up; East is left.
google大致翻译：
三色综合青年人对象赫，哈罗34 （的HH - 34 ） ，现在在原恒星阶段的演变。它是基于帧的CCD获得的FORS2文书成像模式， 11月2日和6日， 1999年。
综合三个图像通过采取三种不同的过滤器：乙（波长429纳米;全宽度半最大（半高宽） 88纳米;曝光时间10分钟;这里提供的是蓝色） ，氢α （为中心的氢发射线波长656纳米;半高宽6纳米; 30分钟;绿色）和S （第二centrered的排放量线inonized含硫量在波长673纳米;半高宽6纳米; 30分钟;红色）期间看到0.8角秒。外地表现出措施6.8 x 6.8弧分和图片记录了张2048 × 2048像素，每个测量0.2角秒。北行动;东是左边。
这个对象有一个显着的，非常复杂的外观，包括两种截然相反的喷气式飞机的撞击周围的星际物质。这种结构产生了一挺机关枪类似爆炸的“子弹”的稠密气体逐出星高速（接近250公里/秒） 。这似乎表明，恒星的经验情节“爆发”当大块物料跌下它从邻近的光盘。
的HH - 34是位于距离约。 1500光年，靠近著名的猎户座星云，其中最富有成效的恒星诞生区域。还注意到神秘的“瀑布”的左上角，这一特点仍然是无法解释的。综合三个图像通过采取三种不同的过滤器：乙（波长429纳米;全宽度半最大（半高宽） 88纳米;曝光时间10分钟;这里提供的是蓝色） ，氢α （为中心的氢排放量线在波长656纳米;半高宽6纳米; 30分钟;绿色）和S （第二centrered的排放量线inonized含硫量在波长673纳米;半高宽6纳米; 30分钟;红色）期间看到0.8角秒。外地表现出措施6.8 x 6.8弧分和图片记录了张2048 × 2048像素，每个测量0.2角秒。北行动;东是左边。 太空瀑布。::42:: ::42:: 果然够大，也够漂亮 妙哇！神奇！比较抽象。 ::070821_19.jpg:: 飞流直下三千尺 点点星光遍九天 好亮的一条丝绸。。。。::070821_18.jpg::
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