标题： JCMT银河带巡天：理解分子外流对银河带云的影响 显示英文标题

标题： The JCMT Gould Belt Survey: Understanding the influence of molecular outflows on Gould Belt clouds

摘要： 利用JCMT高尔德带巡天的CO J=3-2同位素数据，我们对几个高尔德带分子云中的恒星形成区外流和能量进行了元分析。 大多数区域强烈地受到引力束缚。 有证据表明，分子外流传输了大量动量和能量。 在外流研究的所有区域中，其能量至少占总湍流动能的20%，并且在一半以上的区域中外流能量大于湍流能量。 然而，我们没有发现外流增加湍流水平的证据，并且外流能量与湍流能量之间没有相关性。 尽管在某些区域中外流显著有助于维持湍流水平以防止耗散，但这依赖于外流有效地耦合到整体运动上。 在这些区域中的大多数甚至所有区域中，湍流的主要驱动力必定是其他机制（例如超新星）。 显示英文摘要

摘要： Using JCMT Gould Belt Survey data from CO J=3-2 isotopologues, we present a meta-analysis of the outflows and energetics of star-forming regions in several Gould Belt clouds. The majority of the regions are strongly gravitationally bound. There is evidence that molecular outflows transport large quantities of momentum and energy. Outflow energies are at least 20 per cent of the total turbulent kinetic energies in all of the regions studied and greater than the turbulent energy in half of the regions. However, we find no evidence that outflows increase levels of turbulence, and there is no correlation between the outflow and turbulent energies. Even though outflows in some regions contribute significantly to maintaining turbulence levels against dissipation, this relies on outflows efficiently coupling to bulk motions. Other mechanisms (e.g. supernovae) must be the main drivers of turbulence in most if not all of these regions.