The formation and fragmentation of protostellar cores 59
FRAGMENTATION OF MAGNETICALLY SUBCRITICAL CLOUDS INTO MULTIPLE SUPERCRITICAL CORES AND THE FORMATION OF SMALL STELLAR GROUPS Zhi-Yun Li
... dense cores of molecular clouds. In the standard picture, the cores are envisioned to condense out of strongly magnetized clouds through ambipolar ...of fragmentation, fundamental to binary, multiple ...
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The formation of planets by disc fragmentation
... disc fragmentation plays in the formation of gas giant and terrestrial planets, and how this relates to the formation of brown dwarfs and low-mass stars, and ultimately to the process of star ...
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Filament Fragmentation in High-Mass Star Formation
... As a next step, we analyze the region in the framework of isothermal, gravitationally bound gaseous cylinders. Based on early work of Chandrasekhar & Fermi (1953); Nagasawa (1987) and Inutsuka & Miyama (1992) as well as ...
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Disc formation and fragmentation using radiative non ideal magnetohydrodynamics
... the formation and fragmentation of discs using a suite of 3D smoothed particle radiative magnetohydrodynamics ...the protostellar disc can be ...discs. Fragmentation is more likely to occur ...
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Tracing the History of Grounded Theory Methodology: From Formation to Fragmentation
... From Formation to Fragmentation Méabh Kenny and Robert Fourie University College Cork, Corcaigh, Ireland There are very few articles, which track the history of Grounded Theory (GT) methodology from its ...
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ALMA Observations of Massive Clouds in the Central Molecular Zone: Jeans Fragmentation and Cluster Formation
... the cores are consistent with thermal Jeans ...star formation processes at ...Jeans fragmentation and leading to similar CMF ...star formation in the CMZ, they are currently unable to form ...
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Fragmentation and disk formation during high-mass star formation. IRAM NOEMA (Northern Extended Millimeter Array) large program CORE
... star formation proceeds in a clustered mode at distances mostly of several kpc, high-spatial resolution is mandatory to resolve the different physical ...of fragmentation, disk formation, and ...
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Current sheets in the solar corona : formation, fragmentation and heating
... The second drives the boundaries only until a current layer is formed and is then ramped down. The energetics of the ideal simulations were analysed first and we found that the magnetic energy dominates, for both ...
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The earliest fragmentation in molecular clouds : and its connection to star formation
... sitions of their clumps and their masses do not correspond with each other. As the density distribution of molecular clouds is hierarchical with structure on all scales it is unclear which scale is the most relevant for ...
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Fragmentation and disk formation in high-mass star formation: The ALMA view of G351.77-0.54 at 0.06′′ resolution
... This is partially based on the high Planck brightness temperature of the central beam toward source #1 of approximately 201 K (see Sect. 4 , temperatures on the order of 200 K at a dista[r] ...
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Fragmentation and Wake Formation in Faint Meteors: Implications for the Structure and Ablation of Small Meteoroids
... Though low-resolution video data, such as meteor light curves and beginning heights, pro- vided constraints for the dustball model, particularly the meteoroid heat of vaporisation and glue melting temperature, ...
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Role of environment and gas temperature in the formation of multiple protostellar systems: molecular tracers
... ing fragmentation as expected from models, a result that was also stated in O ff ner et ...turbulent fragmentation. Instead, wide multi- ple protostellar systems present larger envelope masses and ...
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An ALMA Search for Substructure, Fragmentation, and Hidden Protostars in Starless Cores in Chamaeleon I
... star formation in Chamaeleon I is likely wrong. In- stead, the star formation rate in this cloud is declining and most of the starless cores currently observed are not ...star formation is ...
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There is no magnetic braking catastrophe : low mass star cluster and protostellar disc formation with non ideal magnetohydrodynamics
... cloud cores with masses up to 1000 M , that produce multiple protostellar objects and resolved ...star formation, rather than to study the formation of low-mass stellar ...disc ...
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Observational Signatures from Self-Gravitating Protostellar Disks
... the formation and long-term evolution of primordial protostellar disks har- bored by the first stars (Population III stars), using 2+1D numerical hydrodynamics simulations in the thin-disk ...
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Walch, Stefanie (2008): The formation and early evolution of protostellar disks around low-mass stars.. Dissertation, LMU München: Fakultät für Physik
... rotating cores with j tot > 2 · 10 21 cm 2 s − 1 , the disks formed from turbulent cores did not become gravitationally unstable and were never fragmenting during ...one protostellar object was ...
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Reconstructing the history of water ice formation from HDO/H2O and D2O/HDO ratios in protostellar cores
... star formation: 1) majority of oxygen is locked up in water ice and other molecules in molecular clouds, where water deuteration is not efficient, and 2) water ice formation continues with much reduced ...
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Characterizing Magnetic Field Morphologies in Three Serpens Protostellar Cores with ALMA
... the formation of young protostars, we present high angular resolution ALMA dust polarization observations of the Class 0 protostellar cores Serpens SMM1, Emb 8(N), and Emb ...central cores, ...
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The role of magnetic fields in the formation of protostellar discs
... The formation of a protostellar disc is a natural outcome during the star formation ...the formation of a protostellar ...star-forming cores remain to be fully characterized ...
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Gravitational instabilities in protostellar discs and the formation of planetesimals
... mass might be hidden in optically thick inner parts (Hartmann 2009).1. Are protostellar discs linearly unstable.[r] ...
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