Coupled map lattice for the spiral pattern formation in astronomical objects
arXiv:1909.03199 · doi:10.1016/j.physd.2020.132377
Abstract
We propose a minimal coupled map lattice (CML) for the spiral pattern formation in astronomical objects which consist of accreting gas induced by gravity as a long-range force. In the proposed CML, we assume only two procedures: one in which the flow of gas particles occurs by gravity and another one in which the collision of gas particles occurs by advection in the flow. In spite of its simplicity, the numerical simulation of the proposed CML shows a new formation process in which grand design spiral patterns appear due to gas ejection from a central star. Several aspects of the formation process are indeed in good agreement with the results of conventional theories and observations. This agreement and the observations of outflows should suggest that the above gas ejection can happen and lead to the formation of grand design spiral patterns, in actual spiral galaxies and protoplanetary disks.
arXiv comment12 pages, 7 figures
References in corpus (9)
- Cosmological SPH simulations: A hybrid multi-phase model for star formation
- Galaxy Luminosity Functions to z~1: DEEP2 vs. COMBO-17 and Implications for Red Galaxy Formation
- A Keplerian disk around a Class 0 source: ALMA observations of VLA1623A
- Evidence for ultra-fast outflows in radio-quiet AGNs: III - location and energetics
- Fragmentation of a Molecular Cloud Core versus Fragmentation of the Massive Protoplanetary Disk in the Main Accretion Phase
- A Very Compact Extremely High Velocity Flow toward MMS 5 / OMC-3 Revealed with ALMA
- Coupled Map Modeling for Cloud Dynamics
- Chaotic itinerancy and thermalization in one-dimensional self-gravitating systems
- Do Galaxy Morphologies Really Affect the Efficiency of Star Formation during the Phase of Galaxy Transition?
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