Simulating cosmological substructure in the solar neighbourhood

dc.creatorSimpson, Christine M.
dc.creatorGargiulo, Ignacio
dc.creatorGómez, Facundo A.
dc.creatorGrand, Robert J.
dc.creatorMaffione, Nicolás Pablo
dc.creatorCooper, Andrew P.
dc.creatorDeason, Alis J.
dc.creatorFrenk, Carlos
dc.creatorHelly, John
dc.creatorMarinacci, Federico
dc.creatorPakmor, Rudiger
dc.date2019-09
dc.date.accessioned2023-08-30T16:27:25Z
dc.date.available2023-08-30T16:27:25Z
dc.identifierSimpson, 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
dc.identifier1745-3933
dc.identifierhttps://rid.unrn.edu.ar/jspui/handle/20.500.12049/3767
dc.identifierhttps://doi.org/10.1093/mnrasl/slz142
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8529351
dc.descriptionFil: Simpson, Christine M. The University of Chicago; USA.
dc.descriptionFil: Gargiulo, Ignacio. Universidad de La Serena; Chile.
dc.descriptionFil: Gómez, Facundo A. Universidad de La Serena; Chile.
dc.descriptionFil: Grand, Robert J. Max-Planck-Institut fur Astrophysik; Alemania.
dc.descriptionFil: Maffione, Nicolás P. Universidad Nacional de Río Negro. Sede Andina. Laboratorio de Procesamiento de Señales Aplicado y Computación de Alto Rendimiento; Argentina.
dc.descriptionFil: Cooper, Andrew P. National Tsing Hua University; Taiwan.
dc.descriptionFil: Deason, Alis J. Durham University; UK.
dc.descriptionFil: Frenk, Carlos. Durham University; UK.
dc.descriptionFil: Helly, John. Durham University; UK.
dc.descriptionFil: Marinacci, Federico. University of Bologna; Italia.
dc.descriptionFil: Pakmor, Rudiger. Max-Planck-Institut fur Astrophysik; Alemania.
dc.descriptionFil: Maffione, Nicolás P. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.descriptiontrue
dc.descriptionWe 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.
dc.formatapplication/pdf
dc.languageen
dc.publisherOxford University Press
dc.relation490 (1)
dc.relationMonthly Notices of the Royal Astronomical Society: Letters
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/4.0/
dc.subjectMethods: Numerical
dc.subjectCatalogs
dc.subjectGalaxy: Kinematics and Dynamics
dc.subjectSolar Neighbourhood
dc.subjectGalaxy: Structure
dc.subjectCosmology: Theory
dc.titleSimulating cosmological substructure in the solar neighbourhood


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