A Large-Scale CO Mapping of the Central Region of W 51
A Large-Scale CO Mapping of the Central Region of W 51
复制标题
W 51 中部地区的大比例 CO 测绘
DOI：
10.1093/pasj/53.5.793
复制
发表时间：
2001
影响因子：
2.3
通讯作者：
T. Hasegawa
中科院分区：
文献类型：
--
作者：
S. Okumura;R. Miyawaki;K. Sorai;T. Yamashita;T. Hasegawa
我们提供了W51中心区域的高分辨率（16′′）CO（J = 1-0）图。我们观测到一个面积约为15.′3 × 16.′7的源，它覆盖了整个G49.5-0.4区，是W51区最亮的源。在G49.5-0.4附近发现了四个离散的分子云，并发现了云与云碰撞的证据，我们推测三个分子云的“堆积”导致了G49.5-0.4中大质量星星的爆发。
We present a high-resolution (16′′) CO (J = 1–0) map of the central region of W 51. We observed an area of about 15.′3 × 16.′7, which covers the entire region of G49.5–0.4, the brightest source in the W 51 region. Four discrete molecular clouds were identified toward G49.5–0.4, and evidence of cloud–cloud collisions was found. We speculate that a “pileup” of three molecular clouds resulted in a burst of massive star formation in G49.5–0.4.