The star-forming disk and CO bar in M101
The star-forming disk and CO bar in M101
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DOI：
10.1086/169577
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发表时间：
1991
期刊：
影响因子：
--
通讯作者：
J. Kenney;N. Scoville;C. Wilson
中科院分区：
文献类型：
--
作者：
J. Kenney;N. Scoville;C. Wilson
结果报告从164 CO（J = 1-0）光谱的内部磁盘的M101，获得使用12米NRAO望远镜在基特峰在1989年4月期间的分析。这些数据以广泛的表格、图表和等高线图的形式提供，并进行了详细讨论。在星系中心附近探测到一个长度为2弧分的分子发射棒。相对于R-波段图像中看到的恒星酒吧约25度的偏移量与缓慢旋转的酒吧模型相一致，而方位平均CO排放具有简单的指数径向分布，这与H-α和FIR排放中看到的中间半径过剩显着不同。参考文献51篇。
Results are reported from an analysis of 164 CO (J = 1-0) spectra of the inner disk of M101, obtained using the 12-m NRAO telescope at Kitt Peak during April 1989. The data are presented in extensive tables, graphs, and contour maps and discussed in detail. A molecular-emission bar of length 2 arcmin is detected near the center of the galaxy. An offset of about 25 deg relative to the stellar bar seen in R-band images is shown to be consistent with a slowly rotating bar model, while the azimuthally averaged CO emission has a simple exponential radial distribution which differs significantly from the intermediate-radius excess seen in the H-alpha and FIR emission. 51 refs.