Formation of a two-dense-rings-pattern disk from the collapse of a cloud
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| Natura: | Artículo científico |
| Lingua: | en |
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Universidad Nacional Autónoma de México
2007
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| _version_ | 1876426066484002816 |
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| author | E. Nagel |
| author_facet | E. Nagel |
| contents | Formation of a two-dense-rings-pattern disk from the collapse of a cloud E. Nagel Física, Astronomía y Matemáticas TION ACCRETION STARS: FORMA HYDRODYNAMICS ACCRETION DISKS In this paper, the formation of a disk resulting from the collapse of a rigidlyrotating cloud is studied. The plane perpendicular to the angular velocity axis that contains the star is the locus where materials falling from both sides face each other with the consequent formation of a double layer shock structure. The shocked material that moves almost parallel to this plane is the material that forms the disk. A hydrodynamical axisymmetric and isothermal simulation is developed using as initial condition a ballistic approximation for the trajectories of the particles located in the vicinity of the star. The dynamical evolution of this material, including the material that is continuously incorporated from the cloud, drives the disk to a stationary configuration composed of two dense rings with constant specific angular momentum that sit on Keplerian positions. A feature like this can change the spectra of disks in deeply embedded stages. 2007 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57143203 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Num.2 Vol.43 |
| format | Artículo científico |
| id | redalyc_57143203 |
| institution | Redalyc |
| language | en |
| publishDate | 2007 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | Formation of a two-dense-rings-pattern disk from the collapse of a cloud E. Nagel Física, Astronomía y Matemáticas TION ACCRETION STARS: FORMA HYDRODYNAMICS ACCRETION DISKS Formation of a two-dense-rings-pattern disk from the collapse of a cloud E. Nagel Física, Astronomía y Matemáticas TION ACCRETION STARS: FORMA HYDRODYNAMICS ACCRETION DISKS In this paper, the formation of a disk resulting from the collapse of a rigidlyrotating cloud is studied. The plane perpendicular to the angular velocity axis that contains the star is the locus where materials falling from both sides face each other with the consequent formation of a double layer shock structure. The shocked material that moves almost parallel to this plane is the material that forms the disk. A hydrodynamical axisymmetric and isothermal simulation is developed using as initial condition a ballistic approximation for the trajectories of the particles located in the vicinity of the star. The dynamical evolution of this material, including the material that is continuously incorporated from the cloud, drives the disk to a stationary configuration composed of two dense rings with constant specific angular momentum that sit on Keplerian positions. A feature like this can change the spectra of disks in deeply embedded stages. 2007 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57143203 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Num.2 Vol.43 |
| title | Formation of a two-dense-rings-pattern disk from the collapse of a cloud |
| topic | Física, Astronomía y Matemáticas TION ACCRETION STARS: FORMA HYDRODYNAMICS ACCRETION DISKS |
| url | https://www.redalyc.org/articulo.oa?id=57143203 |