Cosmic CARNage II: the evolution of the galaxy stellar mass functionin observations and galaxy formation models. Asquith, R., Pearce, F. R., Almaini, O., Knebe, A., Gonzalez-Perez, V., Benson, A., Blaizot, J., Carretero, J., Castander, F. J., Cattaneo, A., Cora, S. A., Croton, D. J., Devriendt, J. E., Fontanot, F., Gargiulo, I. D., Hartley, W., Henriques, B., Lee, J., Mamon, G. A., Onions, J., Padilla, N. D., Power, C., Srisawat, C., Stevens, A. R. H., Thomas, P. A., Vega-Martínez, C. A., & Yi, S. K. Monthly Notices of the Royal Astronomical Society, 480:1197–1210, October, 2018. ![Cosmic CARNage II: the evolution of the galaxy stellar mass functionin observations and galaxy formation models [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex 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 \textless z \textless 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.
@article{asquith_cosmic_2018,
title = {Cosmic {CARNage} {II}: the evolution of the galaxy stellar mass functionin observations and galaxy formation models},
volume = {480},
issn = {0035-8711},
shorttitle = {Cosmic {CARNage} {II}},
url = {http://adsabs.harvard.edu/abs/2018MNRAS.480.1197A},
doi = {10.1093/mnras/sty1870},
abstract = {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 {\textless} z {\textless} 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.},
urldate = {2018-08-10},
journal = {Monthly Notices of the Royal Astronomical Society},
author = {Asquith, Rachel and Pearce, Frazer R. and Almaini, Omar and Knebe, Alexander and Gonzalez-Perez, Violeta and Benson, Andrew and Blaizot, Jeremy and Carretero, Jorge and Castander, Francisco J. and Cattaneo, Andrea and Cora, Sofía A. and Croton, Darren J. and Devriendt, Julien E. and Fontanot, Fabio and Gargiulo, Ignacio D. and Hartley, Will and Henriques, Bruno and Lee, Jaehyun and Mamon, Gary A. and Onions, Julian and Padilla, Nelson D. and Power, Chris and Srisawat, Chaichalit and Stevens, Adam R. H. and Thomas, Peter A. and Vega-Martínez, Cristian A. and Yi, Sukyoung K.},
month = oct,
year = {2018},
keywords = {cosmology:theory, dark matter, galaxies: evolution, galaxies:haloes, methods:numerical},
pages = {1197--1210},
}
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K."],"bibdata":{"bibtype":"article","type":"article","title":"Cosmic CARNage II: the evolution of the galaxy stellar mass functionin observations and galaxy formation models","volume":"480","issn":"0035-8711","shorttitle":"Cosmic CARNage II","url":"http://adsabs.harvard.edu/abs/2018MNRAS.480.1197A","doi":"10.1093/mnras/sty1870","abstract":"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 \\textless z \\textless 3.0. 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