On the relevance of chaos for halo stars in the solar neighbourhood II
Fil: Maffione, Nicolás P. Universidad Nacional de Río Negro. Sede Antina. Laboratorio de Procesamiento de Señales Aplicadas y Computación de Alto Rendimiento; Argentina.
| Autores principales: | , , , , , , , , , |
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| Lenguaje: | Inglés |
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Oxford University Press
2018
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| Acceso en línea: | https://rid.unrn.edu.ar/jspui/handle/20.500.12049/3762 https://doi.org/10.1093/mnras/sty1297 |
| Aporte de: |
| id |
I65-R171-20.500.12049-3762 |
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| record_format |
dspace |
| 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 |
Chaos diffusion Methods: Numerical Galaxy: Evolution |
| spellingShingle |
Chaos diffusion Methods: Numerical Galaxy: Evolution Maffione, Nicolás Pablo Gómez, Facundo A. Cincotta, Pablo M. Giordano, Claudia M. Grand, Robert J. Marinacci, Federico Pakmor, Rudiger Simpson, Christine M. Springel, Volker Frenk, Carlos On the relevance of chaos for halo stars in the solar neighbourhood II |
| topic_facet |
Chaos diffusion Methods: Numerical Galaxy: Evolution |
| description |
Fil: Maffione, Nicolás P. Universidad Nacional de Río Negro. Sede Antina. Laboratorio de Procesamiento de Señales Aplicadas y Computación de Alto Rendimiento; Argentina. |
| author |
Maffione, Nicolás Pablo Gómez, Facundo A. Cincotta, Pablo M. Giordano, Claudia M. Grand, Robert J. Marinacci, Federico Pakmor, Rudiger Simpson, Christine M. Springel, Volker Frenk, Carlos |
| author_facet |
Maffione, Nicolás Pablo Gómez, Facundo A. Cincotta, Pablo M. Giordano, Claudia M. Grand, Robert J. Marinacci, Federico Pakmor, Rudiger Simpson, Christine M. Springel, Volker Frenk, Carlos |
| author_sort |
Maffione, Nicolás Pablo |
| title |
On the relevance of chaos for halo stars in the solar neighbourhood II |
| title_short |
On the relevance of chaos for halo stars in the solar neighbourhood II |
| title_full |
On the relevance of chaos for halo stars in the solar neighbourhood II |
| title_fullStr |
On the relevance of chaos for halo stars in the solar neighbourhood II |
| title_full_unstemmed |
On the relevance of chaos for halo stars in the solar neighbourhood II |
| title_sort |
on the relevance of chaos for halo stars in the solar neighbourhood ii |
| publisher |
Oxford University Press |
| publishDate |
2018 |
| url |
https://rid.unrn.edu.ar/jspui/handle/20.500.12049/3762 https://doi.org/10.1093/mnras/sty1297 |
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I65-R171-20.500.12049-37622023-05-18T17:11:17Z application/pdf info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/4.0/ 2018-05-17 Fil: Maffione, Nicolás P. Universidad Nacional de Río Negro. Sede Antina. Laboratorio de Procesamiento de Señales Aplicadas y Computación de Alto Rendimiento; Argentina. Fil: Gómez, Facundo A. Universidad de La Serena. Departamento de Física y Astronomía; Chile. Fil: Cincotta, Pablo M. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Grupo de Caos en Sistemas Hamiltonianos; Argentina. Fil: Giordano, Claudia M. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Grupo de Caos en Sistemas Hamiltonianos; Argentina. Fil: Grand, Robert J. Heidelberger Institut fur Theoretische Studien; Alemania. Fil: Marinacci, Federico. MIT. Kavli Institute for Astrophysics and Space Researc. Department of Physics; USA. Fil: Pakmor, Rudiger. Heidelberger Institut fur Theoretische Studien; Alemania Fil: Simpson, Christine M. Heidelberger Institut fur Theoretische Studien; Alemania Fil: Springel, Volker. Max Planck Institut for Astrophysik; Alemania Fil: Frenk, Carlos. Durham University. Institute for Computational Cosmology. Department of Physics; UK. Fil: Maffione, Nicolás P. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Gómez, Facundo A. Universidad de La Serena. Instituto de Investigación Multidisciplinar en Ciencia y Tecnología; Chile Fil: Gómez, Facundo A. Max Planck Institute for Astrophysics; Alemania Fil: Cincotta, Pablo M. Universidad Nacional de La Plata. Instituto de Astrofísica de La Plata. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Giordano, Claudia M. Universidad Nacional de La Plata. Instituto de Astrofísica de La Plata. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Grand, Robert J. Zentrum fur Astronomie der Universitat Heidelberg. Astronomisches Rechen institut; Alemania Fil: Springel, Volker. Heidelberger Institut fur Theoretische Studien; Alemania. Fil: Springel, Volker. Zentrum fur Astronomie der Universitat Heidelberg. Astronomisches Rechen institut; Alemania On the relevance of chaos for halo stars in the solar neighbourhood II Maffione, Nicolás Pablo Gómez, Facundo A. Cincotta, Pablo M. Giordano, Claudia M. Grand, Robert J. Marinacci, Federico Pakmor, Rudiger Simpson, Christine M. Springel, Volker Frenk, Carlos Chaos diffusion Methods: Numerical Galaxy: Evolution In a previous paper based on dark matter only simulations we show that, in the approximation of an analytic and static potential describing the strongly triaxial and cuspy shape of Milky Way-sized haloes, diffusion due to chaotic mixing in the neighbourhood of the Sun does not efficiently erase phase space signatures of past accretion events. In this second paper we further explore the effect of chaotic mixing using multicomponent Galactic potential models and solar neighbourhood-like volumes extracted from fully cosmological hydrodynamic simulations, thus naturally accounting for the gravitational potential associated with baryonic components, such as the bulge and disc. Despite the strong change in the global Galactic potentials with respect to those obtained in dark matter only simulations, our results confirm that a large fraction of halo particles evolving on chaotic orbits exhibit their chaotic behaviour after periods of time significantly larger than a Hubble time. In addition, significant diffusion in phase space is not observed on those particles that do exhibit chaotic behaviour within a Hubble time. true In a previous paper based on dark matter only simulations we show that, in the approximation of an analytic and static potential describing the strongly triaxial and cuspy shape of Milky Way-sized haloes, diffusion due to chaotic mixing in the neighbourhood of the Sun does not efficiently erase phase space signatures of past accretion events. In this second paper we further explore the effect of chaotic mixing using multicomponent Galactic potential models and solar neighbourhood-like volumes extracted from fully cosmological hydrodynamic simulations, thus naturally accounting for the gravitational potential associated with baryonic components, such as the bulge and disc. Despite the strong change in the global Galactic potentials with respect to those obtained in dark matter only simulations, our results confirm that a large fraction of halo particles evolving on chaotic orbits exhibit their chaotic behaviour after periods of time significantly larger than a Hubble time. In addition, significant diffusion in phase space is not observed on those particles that do exhibit chaotic behaviour within a Hubble time. Maffione, Nicolas P., Gomez, Facundo A., Cincotta, Pablo M., Giordano, Claudia M., Grand, Robert J., y et al. (2018). On the relevance of chaos for halo stars in the solar neighbourhood II. Oxford University Press; Monthly Notices Of The Royal Astronomical Society; 478 (3); 4052-4067 0035-8711 1365-2966 https://rid.unrn.edu.ar/jspui/handle/20.500.12049/3762 https://doi.org/10.1093/mnras/sty1297 en 478 (3) Monthly Notices of the Royal Astronomical Society Oxford University Press |