Disc-like objects in hierarchical hydrodynamical simulations: Comparison with observations
We present results from a careful and detailed analysis of the structural and dynamical properties of a sample of 29 disc-like objects identified at z = 0 in three AP3M-SPH fully consistent cosmological simulations. These simulations are realizations of a CDM hierarchical model, in which an ineffici...
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2001
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00358711_v325_n1_p119_Saiz http://hdl.handle.net/20.500.12110/paper_00358711_v325_n1_p119_Saiz |
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paper:paper_00358711_v325_n1_p119_Saiz |
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paper:paper_00358711_v325_n1_p119_Saiz2023-06-08T15:01:16Z Disc-like objects in hierarchical hydrodynamical simulations: Comparison with observations Galaxies: evolution Galaxies: formation Galaxies: spiral Galaxies: structure Hydrodynamics Methods: numerical We present results from a careful and detailed analysis of the structural and dynamical properties of a sample of 29 disc-like objects identified at z = 0 in three AP3M-SPH fully consistent cosmological simulations. These simulations are realizations of a CDM hierarchical model, in which an inefficient Schmidt-law-like algorithm to model the stellar formation process has been implemented. We focus on properties that can be constrained with available data from observations of spiral galaxies, namely the bulge and disc structural parameters and the rotation curves. Comparison with data from Broeils, de Jong and Courteau gives satisfactory agreement, in contrast with previous findings using other codes. This suggests that the stellar formation implementation we have used has succeeded in forming compact bulges that stabilize disc-like structures in the violent phases of their assembly, while in the quiescent phases the gas has cooled and collapsed in accord with the Fall & Efstathiou standard model of disc formation. 2001 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00358711_v325_n1_p119_Saiz http://hdl.handle.net/20.500.12110/paper_00358711_v325_n1_p119_Saiz |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Galaxies: evolution Galaxies: formation Galaxies: spiral Galaxies: structure Hydrodynamics Methods: numerical |
| spellingShingle |
Galaxies: evolution Galaxies: formation Galaxies: spiral Galaxies: structure Hydrodynamics Methods: numerical Disc-like objects in hierarchical hydrodynamical simulations: Comparison with observations |
| topic_facet |
Galaxies: evolution Galaxies: formation Galaxies: spiral Galaxies: structure Hydrodynamics Methods: numerical |
| description |
We present results from a careful and detailed analysis of the structural and dynamical properties of a sample of 29 disc-like objects identified at z = 0 in three AP3M-SPH fully consistent cosmological simulations. These simulations are realizations of a CDM hierarchical model, in which an inefficient Schmidt-law-like algorithm to model the stellar formation process has been implemented. We focus on properties that can be constrained with available data from observations of spiral galaxies, namely the bulge and disc structural parameters and the rotation curves. Comparison with data from Broeils, de Jong and Courteau gives satisfactory agreement, in contrast with previous findings using other codes. This suggests that the stellar formation implementation we have used has succeeded in forming compact bulges that stabilize disc-like structures in the violent phases of their assembly, while in the quiescent phases the gas has cooled and collapsed in accord with the Fall & Efstathiou standard model of disc formation. |
| title |
Disc-like objects in hierarchical hydrodynamical simulations: Comparison with observations |
| title_short |
Disc-like objects in hierarchical hydrodynamical simulations: Comparison with observations |
| title_full |
Disc-like objects in hierarchical hydrodynamical simulations: Comparison with observations |
| title_fullStr |
Disc-like objects in hierarchical hydrodynamical simulations: Comparison with observations |
| title_full_unstemmed |
Disc-like objects in hierarchical hydrodynamical simulations: Comparison with observations |
| title_sort |
disc-like objects in hierarchical hydrodynamical simulations: comparison with observations |
| publishDate |
2001 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00358711_v325_n1_p119_Saiz http://hdl.handle.net/20.500.12110/paper_00358711_v325_n1_p119_Saiz |
| _version_ |
1768542978376204288 |