合流丝 II：音叉的起源

Q1 Earth and Planetary Sciences

Monthly Notices of the Royal Astronomical Society: Letters Pub Date : 2024-05-22 DOI:10.1093/mnrasl/slae045

Elena Hoemann, Andrea Socci, Stefan Heigl, Andreas Burkert, Alvaro Hacar

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引用次数: 0

摘要

我们认为恒星形成区的丝状体经常发生合并。作为恒星的苗圃，长丝在了解恒星形成方面起着至关重要的作用，而合并可以为了解更复杂的长丝系统（如网络和枢纽）的形成铺平道路。我们将 RAMSES 对合并长丝的流体力学模拟得出的物理性质与 ALMA 对猎户座 LDN 1641-North 区域的观测结果进行了比较。我们发现两者在线质量、柱密度和速度色散的分布上有相似之处。这些共同特征支持了星丝合并塑造星际介质结构的假说。

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Merging filaments II: The origin of the tuning fork

We suggest that filaments in star-forming regions undergo frequent mergers. As stellar nurseries, filaments play a vital role in understanding star formation and mergers could pave the way for understanding the formation of more complex filamentary systems, such as networks and hubs. We compare the physical properties derived from hydrodynamic RAMSES simulations of merging filaments to those obtained from ALMA observations towards the LDN 1641-North region in Orion. We find similarities in the distributions of line-mass, column density and velocity dispersion. Such common features support the hypothesis of filament mergers shaping the structure of the interstellar medium.

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来源期刊

Monthly Notices of the Royal Astronomical Society: Letters Earth and Planetary Sciences-Space and Planetary Science

CiteScore

8.80

自引率

0.00%

发文量

136

期刊介绍： For papers that merit urgent publication, MNRAS Letters, the online section of Monthly Notices of the Royal Astronomical Society, publishes short, topical and significant research in all fields of astronomy. Letters should be self-contained and describe the results of an original study whose rapid publication might be expected to have a significant influence on the subsequent development of research in the associated subject area. The 5-page limit must be respected. Authors are required to state their reasons for seeking publication in the form of a Letter when submitting their manuscript.