Observations meets theory in clustered star formation
نویسندگان
چکیده
منابع مشابه
Observations and Theory of Star Cluster Formation
Young stars form on a wide range of scales, producing aggregates and clusters with various degrees of gravitational self-binding. The loose aggregates have a hierarchical structure in both space and time that resembles interstellar turbulence, suggesting that these stars form in only a few turbulent crossing times with positions that map out the previous gas distribution. Dense clusters, on the...
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We present 2 ′′ to 7 ′′ resolution 3 mm continuum and CO(J=1−0) line emission and near infrared K s , H 2 , and [FeII] images toward the massive star forming region W75 N. The CO emission uncovers a complex morphology of multiple, overlapping outflows. A total flow mass of > 255 M ⊙ extends 3 pc from end-to-end and is being driven by at least four late to early-B protostars. More than 10% of th...
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I review some important questions in the field of massive star formation: What are the initial conditions for proto star clusters and how do they arise? What are the initial conditions for individual massive star formation within star clusters? How do massive protostars accumulate their mass? I compare the Turbulent Core Model (McKee & Tan 2003) to several nearby regions, including Orion KL. He...
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Star formation triggering mechanisms are reviewed, including the direct compression of clouds and globules, the compression and collapse of molecular clouds at the edges of HII regions and supernovae, the expansion and collapse of giant rings and shells in galaxy disks, and the collision and collapse between two clouds. Collapse criteria are given. A comprehensive tabulation of regions where th...
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The process of coalition formation, where distinct autonomous agents come together to act as a coherent group is an important form of interaction in multiagent systems. Previous work has focused on developing coalition formation algorithms which seek to maximize some coalition structure valuation function V (CS). However, for many real-world systems, evaluation of V (CS) must be done empiricall...
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ژورنال
عنوان ژورنال: Proceedings of the International Astronomical Union
سال: 2019
ISSN: 1743-9213,1743-9221
DOI: 10.1017/s1743921319006513