Massive stars in massive clusters - IV. Disruption of clouds by momentum-driven winds

Massive stars in massive clusters - IV. Disruption of clouds by momentum-driven winds
复制标题

大质量星团中的大质量恒星 - IV 动量驱动风对云层的破坏

DOI:
10.1093/mnras/stt1822
复制
发表时间:
2013
影响因子:
4.8
通讯作者:
Bonnell
Bonnell
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Ngoumou;Ercolano;Bonnell

文献摘要

参考文献

被引文献

相似文献

我们研究动量驱动的OB-星恒星风的参数空间的模拟湍流巨分子云使用平滑粒子流体动力学模拟的效果。通过与相同的模拟,其中包括电离辐射,而不是风的比较,我们表明,动量驱动的风是相当有效地破坏他们的主机云比Hiiregions。产生的风气泡比相应的电离驱动气泡更小,通常更平滑。风在破坏O型星所嵌入的非常致密的气体方面也大致有效,从而关闭了模型云中恒星形成活动的主要区域。然而,它们的影响力随着距离源的距离而迅速福尔斯,因此它们不太擅长清扫致密气体并在云层中引发星星形成。因此,它们对星星形成速率和效率的影响通常比电离更负面,如果它们发挥任何影响的话。
We examine the effect of momentum-driven OB-star stellar winds on a parameter space of simulated turbulent giant molecular clouds using smoothed particle hydrodynamic simulations. By comparison with identical simulations in which ionizing radiation was included instead of winds, we show that momentum-driven winds are considerably less effective in disrupting their host clouds than are Hiiregions. The wind bubbles produced are smaller and generally smoother than the corresponding ionization-driven bubbles. Winds are roughly as effective in destroying the very dense gas in which the O stars are embedded, and thus shutting down the main regions of star-forming activity in the model clouds. However, their influence falls off rapidly with distance from the sources, so they are not as good at sweeping up dense gas and triggering star formation further out in the clouds. As a result, their effect on the star formation rate and efficiency is generally more negative than that of ionization, if they exert any effect at all.
DOI: --
发表时间: 1990
期刊:
影响因子: --
作者:
J. Franco;G. Tenorio;P. Bodenheimer
通讯作者: P. Bodenheimer
DOI: 10.1086/174147
发表时间: 1994
期刊: The Astrophysical Journal
影响因子: --
作者:
B. Elmegreen
通讯作者: B. Elmegreen
激波压缩层中的恒星形成。
DOI: --
发表时间: 1978
期刊:
影响因子: --
作者:
B. Elmegreen;D. Elmegreen
通讯作者: D. Elmegreen
DOI: 10.1086/501530
发表时间: 2005-11
期刊: The Astrophysical Journal Supplement Series
影响因子: --
作者:
F. Nakamura;C. McKee;R. Klein;R. Fisher
通讯作者: F. Nakamura;C. McKee;R. Klein;R. Fisher
对低质量恒星形成的反馈效应
DOI: 10.1088/0004-637x/747/1/22
发表时间: 2012
期刊: The Astrophysical Journal
影响因子: --
作者:
Charles E. Hansen;R. Klein;C. McKee;R. Fisher
通讯作者: R. Fisher