Menzel 3: Dissecting the Ant
Menzel 3: Dissecting the Ant
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门泽尔 3：解剖蚂蚁
DOI：
10.1051/0004-6361:20041147
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发表时间：
2004
影响因子：
6.5
通讯作者：
A. Mampaso
中科院分区：
文献类型：
--
作者：
M. Santander;R. Corradi;B. Balick;A. Mampaso
本文利用HST、CTIO和ESO的图像和光谱研究了双极星云Mz 3的结构和运动学。至少有四个不同的外流已经被确定，从内到外，分别是：一对明亮的双极叶，两个相对的高度准直的柱状外流，一个放射状结构的锥形系统，和一个非常暗淡的，以前未被注意到的，低纬度和扁平的（环状）放射状外流。一个简单的哈勃定律描述了弹道膨胀的叶、柱和射线的速度场，这表明它们的形成是在演化的早期阶段完成的，在一种喷发事件中，准直程度不断增加，膨胀年龄从内部结构的1600年到最大的1600年（每千秒差距到星云）。
The structure and kinematics of the bipolar nebula Mz 3 have been investigated by means of HST, CTIO and ESO images and spectra. At least four distinct outflows have been identified which, from the inside to the outside, are the following: a pair of bright bipolar lobes, two opposite highly collimated column-shaped outflows, a conical system of radial structure, and a very dim, previously unnoticed, low-latitude and flattened (ring-like) radial outflow. A simple Hubble-law describes the velocity field of the ballisticaly expanding lobes, columns and rays, suggesting that their shaping has being done at very early stages of evolution, in a sort of eruptive events with increasing degree of collimation and expansion ages ranging from ∼600 for the inner structures to ∼1600 years (per kpc to the nebula) for the largest ones.