首页> 外文期刊>The Astrophysical journal >Subarcsecond Imaging of SiO in the HH 211 Protostellar Jet
【24h】

Subarcsecond Imaging of SiO in the HH 211 Protostellar Jet

机译:HH 211元星喷射中SiO的亚弧成像

获取原文
           

摘要

We present images of the HH 211 molecular jet in the SiO v = 0, J = 1-0 line at 43 GHz made with the Very Large Array at approximately 05 resolution. The SiO emission appears to trace primarily internal bow shocks in the outflow, suggesting that the dust and molecular gas are accelerated via prompt entrainment at internal working surfaces in the jet. There is also some evidence for limb brightening of the SiO emission, indicating that SiO emission may also arise from entrainment in the jet's boundary layer. Excitation temperatures of 150-200 K are inferred from the SiO emission. Enhancements in the SiO abundance of ~106 over interstellar values are observed, and the possible origin of the SiO is discussed.
机译:我们展示了HH 211分子射流在SiO v = 0,J = 1-0线在43 GHz时用非常大的阵列以大约05的分辨率制成的图像。 SiO的排放似乎主要是流出时内部的弓形冲击,这表明灰尘和分子气体是通过在喷射器的内部工作表面迅速夹带而加速的。也有一些证据表明SiO排放物呈肢状变亮,表明SiO排放物也可能是由于夹带在射流边界层中而引起的。从SiO发射可以得出150-200 K的激发温度。观察到SiO丰度比星际值高〜106,并且讨论了SiO的可能来源。

著录项

获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号