M51: 潮汐流与氢α峭壁
See Explanation. Clicking on the picture will download the highest resolution version available.
请参阅说明。单击图片将下载可用的最高分辨率版本。
See Explanation. Clicking on the picture will download the highest resolution version available.
请参阅说明。单击图片将下载可用的最高分辨率版本。
A classic spiral galaxy is shown with blue spiral arms. The center is yellow-red. Many star clusters are easily visible. Please see the explanation for more detailed information.
图中显示的是典型的螺旋星系,旋臂为蓝色。中心为黄红色。许多星团清晰可见。有关更多详细信息,请参阅说明。
The top panel shows a flat ring with a bright center in blue, even though it was taken in near infrared light. The bottom panel shows the same galaxy in visible light and shows a brighter and more expansive center against which the flat ring appears dark. Please see the explanation for more detailed information.
上图显示了一个扁平的环状结构,中心明亮,呈蓝色,尽管它是在近红外光下拍摄的下图显示可见光下的同一星系,中心更明亮、更广阔,而扁平的环状结构则显得很暗。有关更多详细信息,请参阅说明。
See Explanation. Clicking on the picture will download the highest resolution version available.
请参阅说明。单击图片将下载可用的最高分辨率版本。
See Explanation. Clicking on the picture will download the highest resolution version available.
请参阅说明。单击图片将下载可用的最高分辨率版本。
A spiral galaxy with blue spiral arms and a bright center is shown. The galaxy is surrounded by foreground stars and two smaller galaxies. In the galaxy’s center are dark brown dust and red emission filaments. Please see the explanation for more detailed information.
图中显示的是一个螺旋星系,具有蓝色旋臂和明亮的中心。星系周围环绕着前景恒星和两个较小的星系。星系中心有深棕色尘埃和红色发射条纹。有关更多详细信息,请参阅说明。
就像两位相扑选手对峙一样,我们观测到了距离最近的一对超大质量黑洞。这两个黑洞相距约300光年,是通过NASA的哈勃太空望远镜和钱德拉X射线天文台探测到的。这些黑洞深埋在一对正在碰撞的星系中,由内落的气体和尘埃提供燃料,使其作为活跃星系核(AGN)发出明亮的光芒。
The featured image shows a spiral galaxy and a smaller oval galaxy in a dark starfield. Please see the explanation for more detailed information.
特色图片展示了黑暗星场中的一个螺旋星系和一个较小的椭圆星系。有关更多详细信息,请参阅说明。
See Explanation. Clicking on the picture will download the highest resolution version available.
请参阅说明。单击图片将下载可用的最高分辨率版本。
See Explanation. Clicking on the picture will download the highest resolution version available.
请参阅说明。单击图片将下载可用的最高分辨率版本。