Kinematics of the Local Group gas and galaxies in the hestia simulations

Autores
Biaus, Luis; Nuza, Sebastian Ernesto; Richter, Philipp; Sparre, Martin; Scannapieco, Cecilia; Damle, Mitali; Sorce, Jenny G.; Grand, Robert J. J.; Tempel, Elmo; Libeskind, Noam I.; Hani, Maan H
Año de publicación
2022
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We investigate the kinematic properties of gas and galaxies in the Local Group (LG) using high-resolution simulations performed by the hestia (High-resolution Environmental Simulations of The Immediate Area) collaboration. Our simulations include the correct cosmography surrounding LG-like regions consisting of two main spiral galaxies of ∼1012 M⊙, their satellites and minor isolated galaxies, all sharing the same large-scale motion within a volume of a few Mpc. We characterize the gas and galaxy kinematics within the simulated LGs, from the perspective of the Sun, to compare with observed trends from recent HST/COS absorption-line observations and LG galaxy data. To analyse the velocity pattern of LG gas and galaxies seen in the observational data, we build sky maps from the local standard of rest, and the Galactic and LG barycentre frames. Our findings show that the establishment of a radial velocity dipole at low/high latitudes, near the preferred barycentre direction, is a natural outcome of simulation kinematics for material outside the Milky Way virial radius after removing Galaxy rotation when the two main LG galaxies are approaching. Our results favour a scenario where gas and galaxies stream towards the LG barycentre producing a velocity dipole resembling observations. While our study shows in a qualitative way the global matter kinematics in the LG as part of its ongoing assembly, quantitative estimates of gas-flow rates and physical conditions of the LG gas have to await a more detailed modelling of the ionization conditions, which will be presented in a follow-up paper.
Fil: Biaus, Luis. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Nuza, Sebastian Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina
Fil: Richter, Philipp. Universitat Potsdam; Alemania
Fil: Sparre, Martin. Universitat Potsdam; Alemania
Fil: Scannapieco, Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina
Fil: Damle, Mitali. Universitat Potsdam; Alemania
Fil: Sorce, Jenny G.. Universitat Potsdam; Alemania
Fil: Grand, Robert J. J.. Universidad de La Laguna; España
Fil: Tempel, Elmo. University of Tartu; Estonia
Fil: Libeskind, Noam I.. Leibniz Institute For Astrophysics Potsdam; Alemania
Fil: Hani, Maan H. McMaster University; Canadá
Materia
GALAXY: EVOLUTION
HYDRODYNAMICS
LOCAL GROUP
METHODS: NUMERICAL
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/197424
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/197424
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Kinematics of the Local Group gas and galaxies in the hestia simulationsBiaus, LuisNuza, Sebastian ErnestoRichter, PhilippSparre, MartinScannapieco, CeciliaDamle, MitaliSorce, Jenny G.Grand, Robert J. J.Tempel, ElmoLibeskind, Noam I.Hani, Maan HGALAXY: EVOLUTIONHYDRODYNAMICSLOCAL GROUPMETHODS: NUMERICALhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We investigate the kinematic properties of gas and galaxies in the Local Group (LG) using high-resolution simulations performed by the hestia (High-resolution Environmental Simulations of The Immediate Area) collaboration. Our simulations include the correct cosmography surrounding LG-like regions consisting of two main spiral galaxies of ∼1012 M⊙, their satellites and minor isolated galaxies, all sharing the same large-scale motion within a volume of a few Mpc. We characterize the gas and galaxy kinematics within the simulated LGs, from the perspective of the Sun, to compare with observed trends from recent HST/COS absorption-line observations and LG galaxy data. To analyse the velocity pattern of LG gas and galaxies seen in the observational data, we build sky maps from the local standard of rest, and the Galactic and LG barycentre frames. Our findings show that the establishment of a radial velocity dipole at low/high latitudes, near the preferred barycentre direction, is a natural outcome of simulation kinematics for material outside the Milky Way virial radius after removing Galaxy rotation when the two main LG galaxies are approaching. Our results favour a scenario where gas and galaxies stream towards the LG barycentre producing a velocity dipole resembling observations. While our study shows in a qualitative way the global matter kinematics in the LG as part of its ongoing assembly, quantitative estimates of gas-flow rates and physical conditions of the LG gas have to await a more detailed modelling of the ionization conditions, which will be presented in a follow-up paper.Fil: Biaus, Luis. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Nuza, Sebastian Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; ArgentinaFil: Richter, Philipp. Universitat Potsdam; AlemaniaFil: Sparre, Martin. Universitat Potsdam; AlemaniaFil: Scannapieco, Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; ArgentinaFil: Damle, Mitali. Universitat Potsdam; AlemaniaFil: Sorce, Jenny G.. Universitat Potsdam; AlemaniaFil: Grand, Robert J. J.. Universidad de La Laguna; EspañaFil: Tempel, Elmo. University of Tartu; EstoniaFil: Libeskind, Noam I.. Leibniz Institute For Astrophysics Potsdam; AlemaniaFil: Hani, Maan H. McMaster University; CanadáWiley Blackwell Publishing, Inc2022-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/197424Biaus, Luis; Nuza, Sebastian Ernesto; Richter, Philipp; Sparre, Martin; Scannapieco, Cecilia; et al.; Kinematics of the Local Group gas and galaxies in the hestia simulations; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 517; 4; 12-2022; 6170-61820035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stac2983info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-08-25T15:08:55Zoai:ri.conicet.gov.ar:11336/197424instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982026-08-25 15:08:56.194CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Kinematics of the Local Group gas and galaxies in the hestia simulations
title Kinematics of the Local Group gas and galaxies in the hestia simulations
spellingShingle Kinematics of the Local Group gas and galaxies in the hestia simulations
Biaus, Luis
GALAXY: EVOLUTION
HYDRODYNAMICS
LOCAL GROUP
METHODS: NUMERICAL
title_short Kinematics of the Local Group gas and galaxies in the hestia simulations
title_full Kinematics of the Local Group gas and galaxies in the hestia simulations
title_fullStr Kinematics of the Local Group gas and galaxies in the hestia simulations
title_full_unstemmed Kinematics of the Local Group gas and galaxies in the hestia simulations
title_sort Kinematics of the Local Group gas and galaxies in the hestia simulations
dc.creator.none.fl_str_mv Biaus, Luis
Nuza, Sebastian Ernesto
Richter, Philipp
Sparre, Martin
Scannapieco, Cecilia
Damle, Mitali
Sorce, Jenny G.
Grand, Robert J. J.
Tempel, Elmo
Libeskind, Noam I.
Hani, Maan H
author Biaus, Luis
author_facet Biaus, Luis
Nuza, Sebastian Ernesto
Richter, Philipp
Sparre, Martin
Scannapieco, Cecilia
Damle, Mitali
Sorce, Jenny G.
Grand, Robert J. J.
Tempel, Elmo
Libeskind, Noam I.
Hani, Maan H
author_role author
author2 Nuza, Sebastian Ernesto
Richter, Philipp
Sparre, Martin
Scannapieco, Cecilia
Damle, Mitali
Sorce, Jenny G.
Grand, Robert J. J.
Tempel, Elmo
Libeskind, Noam I.
Hani, Maan H
author2_role author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv GALAXY: EVOLUTION
HYDRODYNAMICS
LOCAL GROUP
METHODS: NUMERICAL
topic GALAXY: EVOLUTION
HYDRODYNAMICS
LOCAL GROUP
METHODS: NUMERICAL
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We investigate the kinematic properties of gas and galaxies in the Local Group (LG) using high-resolution simulations performed by the hestia (High-resolution Environmental Simulations of The Immediate Area) collaboration. Our simulations include the correct cosmography surrounding LG-like regions consisting of two main spiral galaxies of ∼1012 M⊙, their satellites and minor isolated galaxies, all sharing the same large-scale motion within a volume of a few Mpc. We characterize the gas and galaxy kinematics within the simulated LGs, from the perspective of the Sun, to compare with observed trends from recent HST/COS absorption-line observations and LG galaxy data. To analyse the velocity pattern of LG gas and galaxies seen in the observational data, we build sky maps from the local standard of rest, and the Galactic and LG barycentre frames. Our findings show that the establishment of a radial velocity dipole at low/high latitudes, near the preferred barycentre direction, is a natural outcome of simulation kinematics for material outside the Milky Way virial radius after removing Galaxy rotation when the two main LG galaxies are approaching. Our results favour a scenario where gas and galaxies stream towards the LG barycentre producing a velocity dipole resembling observations. While our study shows in a qualitative way the global matter kinematics in the LG as part of its ongoing assembly, quantitative estimates of gas-flow rates and physical conditions of the LG gas have to await a more detailed modelling of the ionization conditions, which will be presented in a follow-up paper.
Fil: Biaus, Luis. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Nuza, Sebastian Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina
Fil: Richter, Philipp. Universitat Potsdam; Alemania
Fil: Sparre, Martin. Universitat Potsdam; Alemania
Fil: Scannapieco, Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina
Fil: Damle, Mitali. Universitat Potsdam; Alemania
Fil: Sorce, Jenny G.. Universitat Potsdam; Alemania
Fil: Grand, Robert J. J.. Universidad de La Laguna; España
Fil: Tempel, Elmo. University of Tartu; Estonia
Fil: Libeskind, Noam I.. Leibniz Institute For Astrophysics Potsdam; Alemania
Fil: Hani, Maan H. McMaster University; Canadá
description We investigate the kinematic properties of gas and galaxies in the Local Group (LG) using high-resolution simulations performed by the hestia (High-resolution Environmental Simulations of The Immediate Area) collaboration. Our simulations include the correct cosmography surrounding LG-like regions consisting of two main spiral galaxies of ∼1012 M⊙, their satellites and minor isolated galaxies, all sharing the same large-scale motion within a volume of a few Mpc. We characterize the gas and galaxy kinematics within the simulated LGs, from the perspective of the Sun, to compare with observed trends from recent HST/COS absorption-line observations and LG galaxy data. To analyse the velocity pattern of LG gas and galaxies seen in the observational data, we build sky maps from the local standard of rest, and the Galactic and LG barycentre frames. Our findings show that the establishment of a radial velocity dipole at low/high latitudes, near the preferred barycentre direction, is a natural outcome of simulation kinematics for material outside the Milky Way virial radius after removing Galaxy rotation when the two main LG galaxies are approaching. Our results favour a scenario where gas and galaxies stream towards the LG barycentre producing a velocity dipole resembling observations. While our study shows in a qualitative way the global matter kinematics in the LG as part of its ongoing assembly, quantitative estimates of gas-flow rates and physical conditions of the LG gas have to await a more detailed modelling of the ionization conditions, which will be presented in a follow-up paper.
publishDate 2022
dc.date.none.fl_str_mv 2022-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/197424
Biaus, Luis; Nuza, Sebastian Ernesto; Richter, Philipp; Sparre, Martin; Scannapieco, Cecilia; et al.; Kinematics of the Local Group gas and galaxies in the hestia simulations; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 517; 4; 12-2022; 6170-6182
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/197424
identifier_str_mv Biaus, Luis; Nuza, Sebastian Ernesto; Richter, Philipp; Sparre, Martin; Scannapieco, Cecilia; et al.; Kinematics of the Local Group gas and galaxies in the hestia simulations; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 517; 4; 12-2022; 6170-6182
0035-8711
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stac2983
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.365483

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