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We present predictions for the structural and photometric properties of early-type galaxies in the cold dark matter cosmology from the published semi-analytical galaxy formation models of Baugh et al. and Bower et al. These calculations…

Astrophysics · Physics 2008-11-26 C. Almeida , C. M. Baugh , C. G. Lacey

Galaxies represent the visible fabric of the Universe and there has been considerable progress recently in both observational and theoretical studies. The underlying goal is to understand the present-day diversity of galaxy forms, masses…

Astrophysics · Physics 2007-05-23 Richard S Ellis

The gravitational lensing effect provides various ways to study the mass environment of galaxies. We investigate how galaxy-galaxy(-galaxy) lensing can be used to test models of galaxy formation and evolution. We consider two semi-analytic…

Cosmology and Nongalactic Astrophysics · Physics 2013-01-11 Hananeh Saghiha , Stefan Hilbert , Peter Schneider , Patrick Simon

For the first time, the combination of semi-analytic modelling of galaxy formation and N-body simulations of cosmic structure formation enables us to model, at the same time, both the photometric and the clustering properties of galaxies.…

Astrophysics · Physics 2007-05-23 Antonaldo Diaferio

We review our current knowledge of the population of high-redshift sub-mm/mm galaxies, with particular emphasis on recent results from the SCUBA HAlf Degree Extragalactic Survey (SHADES). All available evidence indicates that these objects…

Astrophysics · Physics 2008-10-09 M. Cirasuolo , J. S. Dunlop

We implement physically motivated recipes for partitioning cold gas into different phases (atomic, molecular, and ionized) in galaxies within semi-analytic models of galaxy formation based on cosmological merger trees. We then model the…

Astrophysics of Galaxies · Physics 2015-09-30 Rachel S. Somerville , Gergö Popping , Scott C. Trager

Recently (Granato, Lacey, Silva et al. 2000, astro-ph/0001308) we have combined our spectrophotometric galaxy evolution code which includes dust reprocessing (GRASIL, Silva et al. 1998) with semi-analytical galaxy formation models (GALFORM,…

Astrophysics · Physics 2009-10-31 G. L. Granato , C. G. Lacey , L. Silva , A. Bressan , C. M. Baugh , S. Cole , C. S. Frenk

We present an accelerated calibration framework for semi-analytic galaxy formation models, demonstrated with Galacticus. Rather than fitting directly to properties such as the low-redshift stellar mass function (SMF) - which requires…

Astrophysics of Galaxies · Physics 2026-01-19 Andrew Robertson , Andrew Benson

We present a comprehensive examination of the three latest versions of the L-Galaxies semi-analytic galaxy formation model, focusing on the evolution of galaxy properties across a broad stellar mass range ($10^7\:{\rm…

Astrophysics of Galaxies · Physics 2024-12-12 Akash Vani , Mohammadreza Ayromlou , Guinevere Kauffmann , Volker Springel

Semi-analytic models are a widely used approach to simulate galaxy properties within a cosmological framework, relying on simplified yet physically motivated prescriptions. They have also proven to be an efficient alternative for generating…

If we are to develop a comprehensive and predictive theory of galaxy formation and evolution, it is essential that we obtain an accurate assessment of how and when galaxies assemble their stellar populations, and how this assembly varies…

Astrophysics of Galaxies · Physics 2009-02-18 Thomas M. Brown , Marc Postman , Daniela Calzetti

Modifications of the equations of general relativity at large distances offer one possibility to explain the observed properties of our Universe without invoking a cosmological constant. Numerous proposals for such modified gravity…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 Fabio Fontanot , Ewald Puchwein , Volker Springel , Davide Bianchi

A new semi-analytic modelling of galaxy evolution in the IR/submm is hereafter outlined. This type of approach successfully reproduces the optical properties of galaxies. We illustrate a simple extension to the IR/submm wavelength range by…

Astrophysics · Physics 2007-05-23 B. Guiderdoni , E. Hivon , F. R. Bouchet

We present a new cosmological galaxy formation model, $\nu^2$GC, as an updated version of our previous model $\nu$GC. We adopt the so-called "semi-analytic" approach, in which the formation history of dark matter halos is computed by ${\it…

Attenuation of high--energy gamma rays by pair--production with UV, optical and IR background photons provides a link between the history of galaxy formation and high--energy astrophysics. We present results from our latest semi-analytic…

Astrophysics · Physics 2009-11-13 Joel R. Primack , Rudy C. Gilmore , Rachel S. Somerville

The challenge of dark matter may be addressed in two ways; by studying the confrontation of structure formation with observation and by direct and indirect searches. In this review, I will focus on those aspects of dark matter that are…

Astrophysics · Physics 2008-11-26 Joseph Silk

Accurate synthetic models of stellar populations are constructed and used in evolutionary models of stellar populations in forming galaxies. Following their formation, the late type galaxies are assumed to follow the Schmidt law for star…

Astrophysics · Physics 2009-10-30 R. Jimenez , A. Kashlinsky

We use N-body simulations combined with semi-analytic models to compute the clustering properties of modeled galaxies at z~3, and confront these predictions with the clustering properties of the observed population of Lyman-break galaxies…

The combination of huge databases of galaxy spectra and advances in evolutionary synthesis models in the past few years has renewed interest in an old question: How to estimate the star formation history of a galaxy out of its integrated…

Astrophysics · Physics 2009-11-13 Roberto Cid Fernandes

The last 20 years have seen an explosion in our understanding of the large-scale distribution and motions of galaxies in the nearby universe. The field has moved from a largely qualitative, morphological description of the structures seen…

Astrophysics · Physics 2007-05-23 Michael A. Strauss
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