期刊
ASTRONOMICAL JOURNAL
卷 124, 期 4, 页码 2152-2163出版社
UNIV CHICAGO PRESS
DOI: 10.1086/342850
关键词
ISM : individual (S140); ISM : jets and outflows; shock waves; stars : formation
We present a wide-field CCD survey of Herbig-Haro objects in the S140 H II region and the adjacent molecular cloud. Two outflows originating in the S140 molecular cloud core are breaking into the surrounding H II region. The P.A. = 65degrees/245degrees molecular outflow that originates from IRS 3 in the S140 infrared cluster has driven an optically visible bow shock into the S140 H II region. This externally irradiated shock, HH 617, appears to be the counterflow associated with an H-2-bright bow shock located 90 northeast of S140 IRS 3. A second, even larger bow shock, HH 616, located about 1' south of this shock indicates another major outflow whose as yet unidentified driving source must lie south of the S140 infrared cluster. These observations indicate that additional molecular outflows and embedded young stars remain to be identified in the S140 molecular cloud core. Furthermore, we report the detection of a dozen new Herbig-Haro objects in other cloud cores near S140.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据