Simulating cosmological substructure in the solar neighbourhood
Fil: Simpson, Christine M. The University of Chicago; USA.
| Autores principales: | , , , , , , , , , , |
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| Lenguaje: | Inglés |
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Oxford University Press
2019
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| Acceso en línea: | https://rid.unrn.edu.ar/jspui/handle/20.500.12049/3767 https://doi.org/10.1093/mnrasl/slz142 |
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I65-R171-20.500.12049-3767 |
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dspace |
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I65-R171-20.500.12049-37672023-05-18T17:11:34Z application/pdf info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/4.0/ 2019-09 Fil: Simpson, Christine M. The University of Chicago; USA. Fil: Gargiulo, Ignacio. Universidad de La Serena; Chile. Fil: Gómez, Facundo A. Universidad de La Serena; Chile. Fil: Grand, Robert J. Max-Planck-Institut fur Astrophysik; Alemania. Fil: Maffione, Nicolás P. Universidad Nacional de Río Negro. Sede Andina. Laboratorio de Procesamiento de Señales Aplicado y Computación de Alto Rendimiento; Argentina. Fil: Cooper, Andrew P. National Tsing Hua University; Taiwan. Fil: Deason, Alis J. Durham University; UK. Fil: Frenk, Carlos. Durham University; UK. Fil: Helly, John. Durham University; UK. Fil: Marinacci, Federico. University of Bologna; Italia. Fil: Pakmor, Rudiger. Max-Planck-Institut fur Astrophysik; Alemania. Fil: Maffione, Nicolás P. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Simulating cosmological substructure in the solar neighbourhood Simpson, Christine M. Gargiulo, Ignacio Gómez, Facundo A. Grand, Robert J. Maffione, Nicolás Pablo Cooper, Andrew P. Deason, Alis J. Frenk, Carlos Helly, John Marinacci, Federico Pakmor, Rudiger Methods: Numerical Catalogs Galaxy: Kinematics and Dynamics Solar Neighbourhood Galaxy: Structure Cosmology: Theory true We explore the predictive power of cosmological, hydrodynamical simulations for stellar phase-space substructure and velocity correlations with the AURIGA simulations and AURIGAIA mock Gaia catalogues. We show that at the solar circle the AURIGA simulations commonly host phase-space structures in the stellar component that have constant orbital energies and arise from accreted subhaloes. These structures can persist for a few Gyr, even after coherent streams in position space have been erased. We also explore velocity two-point correlation functions and find this diagnostic is not deterministic for particular clustering patterns in phase space. Finally, we explore these structure diagnostics with the AURIGAIA catalogues and show that current catalogues have the ability to recover some structures in phase space but careful consideration is required to separate physical structures from numerical structures arising from catalogue generation methods. Simpson, Christine M., Gargiulo, Ignacio., Gómez, Facundo A., Grand, Robert J., Maffione, Nicolás P. y et al. (2019). Simulating cosmological substructure in the solar neighbourhood. Oxford University Press; Monthly Notices of the Royal Astronomical Society: Letters; 490 (1); L32-L37 1745-3933 https://rid.unrn.edu.ar/jspui/handle/20.500.12049/3767 https://doi.org/10.1093/mnrasl/slz142 en 490 (1) Monthly Notices of the Royal Astronomical Society: Letters Oxford University Press |
| institution |
Universidad Nacional de Río Negro |
| institution_str |
I-65 |
| repository_str |
R-171 |
| collection |
Repositorio Institucional Digital de la Universidad Nacional de Río Negro (UNRN) |
| language |
Inglés |
| orig_language_str_mv |
en |
| topic |
Methods: Numerical Catalogs Galaxy: Kinematics and Dynamics Solar Neighbourhood Galaxy: Structure Cosmology: Theory |
| spellingShingle |
Methods: Numerical Catalogs Galaxy: Kinematics and Dynamics Solar Neighbourhood Galaxy: Structure Cosmology: Theory Simpson, Christine M. Gargiulo, Ignacio Gómez, Facundo A. Grand, Robert J. Maffione, Nicolás Pablo Cooper, Andrew P. Deason, Alis J. Frenk, Carlos Helly, John Marinacci, Federico Pakmor, Rudiger Simulating cosmological substructure in the solar neighbourhood |
| topic_facet |
Methods: Numerical Catalogs Galaxy: Kinematics and Dynamics Solar Neighbourhood Galaxy: Structure Cosmology: Theory |
| description |
Fil: Simpson, Christine M. The University of Chicago; USA. |
| author |
Simpson, Christine M. Gargiulo, Ignacio Gómez, Facundo A. Grand, Robert J. Maffione, Nicolás Pablo Cooper, Andrew P. Deason, Alis J. Frenk, Carlos Helly, John Marinacci, Federico Pakmor, Rudiger |
| author_facet |
Simpson, Christine M. Gargiulo, Ignacio Gómez, Facundo A. Grand, Robert J. Maffione, Nicolás Pablo Cooper, Andrew P. Deason, Alis J. Frenk, Carlos Helly, John Marinacci, Federico Pakmor, Rudiger |
| author_sort |
Simpson, Christine M. |
| title |
Simulating cosmological substructure in the solar neighbourhood |
| title_short |
Simulating cosmological substructure in the solar neighbourhood |
| title_full |
Simulating cosmological substructure in the solar neighbourhood |
| title_fullStr |
Simulating cosmological substructure in the solar neighbourhood |
| title_full_unstemmed |
Simulating cosmological substructure in the solar neighbourhood |
| title_sort |
simulating cosmological substructure in the solar neighbourhood |
| publisher |
Oxford University Press |
| publishDate |
2019 |
| url |
https://rid.unrn.edu.ar/jspui/handle/20.500.12049/3767 https://doi.org/10.1093/mnrasl/slz142 |
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