Cosmic CARNage II: The evolution of the galaxy stellar mass function in observations and galaxy formation models

Authors
Asquith, Rachel; Pearce, Frazer R.; Almaini, Omar; Knebe, Alexander; Gonzalez-Perez, Violeta; Benson, Andrew; Blaizot, Jeremy; Carretero, Jorge; Castander, Francisco J.; Cattaneo, Andrea; Cora, Sofia Alejandra; Croton, Darren J.; Devriendt, Julien E.; Fontanot, Fabio; Gargiulo, Ignacio Daniel; Hartley, Will; Henriques, Bruno; Lee, Jaehyun; Mamon, Gary A.; Onions, Julian; Padilla, Nelson D.; Power, Chris; Srisawat, Chaichalit; Stevens, Adam R.H.; Thomas, Peter A.; Vega Martínez, Cristian Antonio; Yi, Sukyoung K.
Publication Year
2018
Language
English
Format
article
Status
Published version
Description
We present a comparison of the observed evolving galaxy stellar mass functions with the predictions of eight semi-analytic models and one halo occupation distribution model. While most models are able to fit the data at low redshift, some of them struggle to simultaneously fit observations at high redshift. We separate the galaxies into 'passive' and 'star-forming' classes and find that several of the models produce too many low-mass star-forming galaxies at high redshift compared to observations, in some cases by nearly a factor of 10 in the redshift range 2.5 < z < 3.0.We also find important differences in the implied mass of the dark matter haloes the galaxies inhabit, by comparing with halo masses inferred from observations. Galaxies at high redshift in the models are in lower mass haloes than suggested by observations, and the star formation efficiency in low-mass haloes is higher than observed. We conclude that many of the models require a physical prescription that acts to dissociate the growth of low-mass galaxies from the growth of their dark matter haloes at high redshift.
Fil: Asquith, Rachel. University of Nottingham; Estados Unidos. Science and Technology Facilities Council of Nottingham. Rutherford Appleton Laboratory; Reino Unido
Fil: Pearce, Frazer R.. University of Nottingham; Estados Unidos. Science and Technology Facilities Council of Nottingham. Rutherford Appleton Laboratory; Reino Unido
Fil: Almaini, Omar. University of Nottingham; Estados Unidos. Science and Technology Facilities Council of Nottingham. Rutherford Appleton Laboratory; Reino Unido
Fil: Knebe, Alexander. Universidad Autónoma de Madrid; España
Fil: Gonzalez-Perez, Violeta. University of Durham; Reino Unido
Fil: Benson, Andrew. Carnegie Observatories; Estados Unidos
Fil: Blaizot, Jeremy. Université Claude Bernard Lyon 1; Francia
Fil: Carretero, Jorge. Universitat Autònoma de Barcelona; España
Fil: Castander, Francisco J.. Universitat Autònoma de Barcelona; España
Fil: Cattaneo, Andrea. Centre National de la Recherche Scientifique; Francia
Fil: Cora, Sofia Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Croton, Darren J.. Swinburne University Of Technology; Australia
Fil: Devriendt, Julien E.. University of Oxford; Reino Unido
Fil: Fontanot, Fabio. Osservatorio Astronomico Di Trieste; Italia
Fil: Gargiulo, Ignacio Daniel. Universidad Nacional de La Plata; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Hartley, Will. Colegio Universitario de Londres; Reino Unido
Fil: Henriques, Bruno. Gobierno de la República Federal de Alemania. Max Planck Institut für Astrophysik; Alemania
Fil: Lee, Jaehyun. Korea Institute For Advanced Study; Corea del Norte
Fil: Mamon, Gary A.. Institut D 'astrophysique de Paris; Francia
Fil: Onions, Julian. Science and Technology Facilities Council of Nottingham. Rutherford Appleton Laboratory; Reino Unido. University of Nottingham; Estados Unidos
Fil: Padilla, Nelson D.. Pontificia Universidad Católica de Chile; Chile. Universidad Católica de Chile; Chile
Fil: Power, Chris. University of Western Australia; Australia
Fil: Srisawat, Chaichalit. University of Sussex; Reino Unido
Fil: Stevens, Adam R.H.. Swinburne University Of Technology; Australia. University of Western Australia; Australia
Fil: Thomas, Peter A.. University of Sussex; Reino Unido
Fil: Vega Martínez, Cristian Antonio. Universidad Autónoma de Madrid; España. Science and Technology Facilities Council of Nottingham. Rutherford Appleton Laboratory; Reino Unido. University of Nottingham; Estados Unidos
Fil: Yi, Sukyoung K.. Yonsei University; Corea del Sur
Subject
COSMOLOGY:THEORY
DARK MATTER
GALAXIES: EVOLUTION
GALAXIES:HALOES
METHODS:NUMERICAL
Astronomía
Ciencias Físicas
CIENCIAS NATURALES Y EXACTAS
Access level
Open access
License
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repository
CONICET Digital (CONICET)
Institution
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identifier
oai:ri.conicet.gov.ar:11336/82437