Journal article

SEMI-ANALYTIC GALAXY EVOLUTION (SAGE): MODEL CALIBRATION AND BASIC RESULTS

Darren J Croton, Adam RH Stevens, Chiara Tonini, Thibault Garel, Maksym Bernyk, Antonio Bibiano, Luke Hodkinson, Simon J Mutch, Gregory B Poole, Genevieve M Shattow

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES | IOP PUBLISHING LTD | Published : 2016

Abstract

This paper describes a new publicly available codebase for modeling galaxy formation in a cosmological context, the "Semi-Analytic Galaxy Evolution" model, or sage for short.5 sage is a significant update to the 2006 model of Croton et al. and has been rebuilt to be modular and customizable. The model will run on any N-body simulation whose trees are organized in a supported format and contain a minimum set of basic halo properties. In this work, we present the baryonic prescriptions implemented in sage to describe the formation and evolution of galaxies, and their calibration for three N-body simulations: Millennium, Bolshoi, and GiggleZ. Updated physics include the following: gas accretion..

View full abstract

University of Melbourne Researchers

Grants

Awarded by LABEX Lyon Institute of Origins at the Universite de Lyon within the program "Investissements d'Avenir" of the French government


Funding Acknowledgements

[ "D.C. acknowledges receipt of a QEII Fellowship from the Australian Research Council. T.G. acknowledges support from an Australian Research Council Super Science Fellowship, and is grateful to the LABEX Lyon Institute of Origins (ANR-10-LABX-0066) at the Universite de Lyon for its financial support within the program \"Investissements d'Avenir\" (ANR-11-IDEX-0007) of the French government, operated by the National Research Agency (ANR).", "ARHS thanks Toby Brown for sourcing the relevant SDSS data used in Figure 9 and discussion on the quiescent fraction. Funding for SDSS-III has been provided by the Alfred P. Sloan Foundation, the Participating Institutions, the National Science Foundation, and the U.S. Department of Energy Office of Science. The SDSS-III web site is http://www.sdss3.org/." ]