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NGC 6240: 合并中的星系

影像提供: NASA / JPL-Caltech / STScI-ESA / S. Bush, et al. (Harvard-Smithsonian CfA)

说明: NGC 6240让我们得以一窥宇宙巨大灾变罕见的最后挣扎过程。这个巨大的星系-星系对撞事件,发生在蛇夫座,离我们约有4亿光年远。这个星系对是红外光波段天空最亮的光源之一,它们喷出由恒星、云气和尘埃所组成的扭曲潮汐尾,而本内部也出现剧烈的恒星诞生活动。位在个别星系核心的超大质量黑洞,未来也会聚成单个更大质量的黑洞。而在不久的未来,它们将合并成单一的大星系。这幅精彩的影像是由多波段照片组合出来的,其中,红色呈现了史匹哲太空望远镜所记录的尘埃红外辐射,而绿色和蓝色影像,则来自哈伯望远镜在可见光波段所拍摄的恒星和云气。以NGC 6240的距离来估算,这幅影像涵盖了大约30万光年的区域。Ophiuchus (蛇夫座)。
A rich variety of active galaxies, with different shapes, luminosities and radiation profiles exist. These galaxies may be related -- astronomers have suspected that they may represent an evolutionary sequence. By catching different galaxies in different stages of merging, a story emerges as one type of active galaxy changes into another. NGC 6240 provides an important "missing link" in this process.

This image was created from combined data from the infrared array camera of NASA's Spitzer Space Telescope at 3.6 and 8.0 microns (red) and visible light from NASA's Hubble Space Telescope (green and blue).

ngc1700_cxc_full.jpg sextet_hst_full.jpg ngc6240_spitzerhubble.jpg ngc253c_hst_big.jpg ngc1365_vlt_big.jpg



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作品信息
作品名:ngc6240_spitzerhubble.jpg
文件名称:北回归线 / 星系
评分 (16 次投票):00000
关键词:2009 6 18
图片来源:翻译:天文实验室 (成功大学 物理学系 ;苏汉宗)
作品尺寸:4310 KiB
加入日期:六月 18, 2009
尺寸:3921 x 3805 像素
显示:1116 次
Exif 作品宽度:3921 pixels
Exif 作品高度:3805 pixels
Exif 偏移量:1244
X 分辨率:72
Y 分辨率:72
作品简介:This image of a pair of colliding galaxies called NGC 6240 shows them in a rare, short-lived phase of their evolution just before they merge into a single, larger galaxy. The prolonged, violent collision has drastically altered the appearance of both galaxies and created huge amounts of heat -turning NGC 6240 into an "infrared luminous" active galaxy. A rich variety of active galaxies, with different shapes, luminosities, and radiation profiles, exist. These galaxies may be related -- astronomers have suspected that they may form a kind of sequence to form a combined galaxy. By catching different galaxies in different stages of merging, a story emerges as one type of active galaxy changes into another. NGC 6240 provides an important "missing link" in this process. This image was created from combined data from the Spitzer Space Telescope's Infrared Array Camera at 3.6 and 8.0 microns (red) and visible light from the Hubble Space Telescope (green and blue).
分辨率:Inch
定位:1: Normal (0 deg)
软件:Adobe Photoshop CS3 Macintosh
颜色空间:Uncalibrated
IPTC 标题:Galaxies Collide to Create Hot, Huge Galaxy
IPTC 关键词:NGC 6240
URL:http://album.skylook.org/displayimage.php?pid=6192
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