Thousands of milky ways: Galaxy satellites and building blocks

A semi-analytic model of galaxy formation with and without active galactic nuclei feedback is used to study the nature of possible building blocks (BBs) of z = 0 galaxies, including those of Milky-Way types. We find that BBs can show an important range of properties arising from environmental variab...

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Detalles Bibliográficos
Autores principales: Padilla, Nelson, Lagos, Claudia, Cora, Sofía Alejandra
Formato: Articulo Comunicacion
Lenguaje:Inglés
Publicado: 2009
Materias:
Ciencias Astronómicas
Galaxies: evolution
Galaxies: formation
Galaxy: evolution
Galaxy: formation
Galaxy: halo
Methods: N-body simulations
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/82717
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-82717
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Astronómicas
Galaxies: evolution
Galaxies: formation
Galaxy: evolution
Galaxy: formation
Galaxy: halo
Methods: N-body simulations
spellingShingle Ciencias Astronómicas
Galaxies: evolution
Galaxies: formation
Galaxy: evolution
Galaxy: formation
Galaxy: halo
Methods: N-body simulations
Padilla, Nelson
Lagos, Claudia
Cora, Sofía Alejandra
Thousands of milky ways: Galaxy satellites and building blocks
topic_facet Ciencias Astronómicas
Galaxies: evolution
Galaxies: formation
Galaxy: evolution
Galaxy: formation
Galaxy: halo
Methods: N-body simulations
description A semi-analytic model of galaxy formation with and without active galactic nuclei feedback is used to study the nature of possible building blocks (BBs) of z = 0 galaxies, including those of Milky-Way types. We find that BBs can show an important range of properties arising from environmental variables such as host halo mass, and whether a galaxy is a satellite within its host halo; the stellar formation histories are comparatively faster and the chemical enrichment is more efficient in BBs than in surviving satellites, in accordance with recent metallicity measurements for the Milky Way. These results can be used in combination with observational constraints to continue probing the ability of the cold dark-matter scenario to reproduce the history of galaxy demography in the Universe.
format Articulo
Comunicacion
author Padilla, Nelson
Lagos, Claudia
Cora, Sofía Alejandra
author_facet Padilla, Nelson
Lagos, Claudia
Cora, Sofía Alejandra
author_sort Padilla, Nelson
title Thousands of milky ways: Galaxy satellites and building blocks
title_short Thousands of milky ways: Galaxy satellites and building blocks
title_full Thousands of milky ways: Galaxy satellites and building blocks
title_fullStr Thousands of milky ways: Galaxy satellites and building blocks
title_full_unstemmed Thousands of milky ways: Galaxy satellites and building blocks
title_sort thousands of milky ways: galaxy satellites and building blocks
publishDate 2009
url http://sedici.unlp.edu.ar/handle/10915/82717
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AT lagosclaudia thousandsofmilkywaysgalaxysatellitesandbuildingblocks
AT corasofiaalejandra thousandsofmilkywaysgalaxysatellitesandbuildingblocks
bdutipo_str Repositorios
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