Abstract
view Abstract Citations (22) References (66) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The Collapse of Cylindrical Isothermal and Polytropic Clouds with Rotation Bonnell, Ian ; Bastien, Pierre Abstract Two-dimensional numerical hydrodynamic calculations are carried out to study the effect of the geometry on the process of gravitational collapse of a rotating axisymmetric cloud. Both polytropic and isothermal equations of state are used in the analysis. It is shown that the shape of a cloud undergoing collapse is the dominant factor in all cases, except where the polytropic constant is large (greater than 4/3). Without rotation, clouds differing from a uniform geometry collapse more readily, while the rotating oblate clouds require a larger initial Jeans number than either clouds with L/D = 1 or prolate clouds. Publication: The Astrophysical Journal Pub Date: June 1991 DOI: 10.1086/170147 Bibcode: 1991ApJ...374..610B Keywords: Gravitational Collapse; Isothermal Processes; Molecular Clouds; Polytropic Processes; Star Formation; Stellar Rotation; Astronomical Models; Computational Astrophysics; Hydrodynamics; Jeans Theory; Astrophysics; HYDRODYNAMICS; STARS: FORMATION; STARS: ROTATION full text sources ADS |
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