Oblique filament collisions lead to gravitational collapse of the compressed cloud when post-collision |gravitational energy| exceeds kinetic plus thermal plus magnetic energies, with lower angles and lower velocities favoring hub-filament formation.
Formation of Massive Molecular Cloud Cores by Cloud-cloud Collision
2 Pith papers cite this work. Polarity classification is still indexing.
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abstract
Recent observations of molecular clouds around rich massive star clusters including NGC3603, Westerlund 2, and M20 revealed that the formation of massive stars could be triggered by a cloud-cloud collision. By using three-dimensional, isothermal, magnetohydrodynamics simulations with the effect of self-gravity, we demonstrate that massive, gravitationally unstable, molecular cloud cores are formed behind the strong shock waves induced by the cloud-cloud collision. We find that the massive molecular cloud cores have large effective Jeans mass owing to the enhancement of the magnetic field strength by shock compression and turbulence in the compressed layer. Our results predict that massive molecular cloud cores formed by the cloud-cloud collision are filamentary and threaded by magnetic fields perpendicular to the filament.
fields
astro-ph.GA 2years
2026 2verdicts
UNVERDICTED 2representative citing papers
RAT alignment boosted by B-star radiation plus DG alignment reproduces super-Serkowski spectra in HD 30614 and HD 204827 while standard RAT alone fits Serkowski spectra in HD 37903 and HD 161056.
citing papers explorer
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Evolution of compressed clouds formed by filament coalescence. I. Oblique collisions
Oblique filament collisions lead to gravitational collapse of the compressed cloud when post-collision |gravitational energy| exceeds kinetic plus thermal plus magnetic energies, with lower angles and lower velocities favoring hub-filament formation.
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Grain Alignment and Dust Evolution Physics with Polarisation (GRADE-POL). II. On the physical basis of Serkowski and super-Serkowski polarisation spectra
RAT alignment boosted by B-star radiation plus DG alignment reproduces super-Serkowski spectra in HD 30614 and HD 204827 while standard RAT alone fits Serkowski spectra in HD 37903 and HD 161056.