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相关论文: A multi-wavelength model of galaxy formation

200 篇论文

We present a new version of the GALFORM semi-analytical model of galaxy formation. This brings together several previous developments of GALFORM into a single unified model, including a different initial mass function (IMF) in quiescent…

We present predictions for the evolution of the galaxy luminosity function, number counts and redshift distributions in the IR based on the Lambda-CDM cosmological model. We use the combined GALFORM semi-analytical galaxy formation model…

天体物理学 · 物理学 2009-11-13 C. G. Lacey , C. M. Baugh , C. S. Frenk , L. Silva , G. L. Granato , A. Bressan

We combine a semi-analytic model of galaxy formation with simple analytic recipes describing the absorption and re-emission of starlight by dust in the interstellar medium of galaxies. We use the resulting models to predict galaxy counts…

宇宙学与河外天体物理 · 物理学 2015-05-27 R. S. Somerville , R. C. Gilmore , J. R. Primack , A. Dominguez

We present a new evolutionary model for the far-UV to sub-mm properties of the galaxy population. This combines a semi-analytic galaxy formation model based on hierarchical clustering (GALFORM) with a spectro-photometric code which includes…

天体物理学 · 物理学 2009-10-31 G. L. Granato , C. G. Lacey , L. Silva , A. Bressan , C. M. Baugh , S. Cole , C. S. Frenk

This paper proposes a new semi-analytic modelling of galaxy properties in the IR/submm wavelength range, which is explicitly set in a cosmological framework. This type of approach has had some success in reproducing the optical properties…

天体物理学 · 物理学 2009-10-30 B. Guiderdoni , E. Hivon , F. R. Bouchet , B. Maffei

Though half of cosmic starlight is absorbed by dust and reradiated at long wavelengths (3$\mu$m-3mm), constraints on the infrared through millimeter galaxy luminosity function (the `IRLF') are poor in comparison to the rest-frame…

We make a detailed investigation of the properties of Lyman-break galaxies (LBGs) in the LambdaCDM model. We present predictions for two published variants of the GALFORM semi-analytical model: the Baugh et al. (2005) model, which has star…

宇宙学与河外天体物理 · 物理学 2015-05-18 C. G. Lacey , C. M. Baugh , C. S. Frenk , A. J. Benson , .

We use a model for the evolution of galaxies in the far-IR based on the LambdaCDM cosmology to make detailed predictions for upcoming cosmological surveys with the Herschel Space Observatory. We use the combined GALFORM semi-analytical…

宇宙学与河外天体物理 · 物理学 2015-05-14 C. G. Lacey , C. M. Baugh , C. S. Frenk , A. J. Benson , A. Orsi , L. Silva , G. L. Granato , A. Bressan

A semi-analytic model is proposed that couples the Press-Schechter formalism for the number of galaxies with a prescription for galaxy-galaxy interactions that enables to follow the evolution of galaxy morphologies along the Hubble…

天体物理学 · 物理学 2009-11-07 Christophe Balland , Julien E. G. Devriendt , Joe Silk

We use a sample of 7 starburst galaxies at intermediate redshifts (z ~ 0.4 and z ~ 0.8) with observations ranging from the observed ultraviolet to 1.4 GHz, to compare the star formation rate (SFR) estimators which are used in the different…

天体物理学 · 物理学 2009-11-07 N. Cardiel , D. Elbaz , R. P. Schiavon , C. N. A. Willmer , D. C. Koo , A. C. Phillips , J. Gallego

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…

天体物理学 · 物理学 2007-05-23 B. Guiderdoni , E. Hivon , F. R. Bouchet

I review a technique for interpreting faint galaxy data which traces the evolution with cosmic time of the galaxy luminosity density, as determined from several deep spectroscopic samples and the HDF. The method relies on the rest frame UV…

天体物理学 · 物理学 2007-05-23 Piero Madau

JWST has measured an unprecedented abundance of galaxies above $z\gtrsim 4-5$, whose formation and evolution are still difficult to reconcile within traditional galaxy evolution models in a $\Lambda$CDM framework. Here, we present a study…

Our view on the deep universe has been so far biased towards optically bright galaxies. Now, the measurement of the Cosmic Infrared Background in FIRAS and DIRBE residuals, and the observations of FIR/submm sources by the ISOPHOT and SCUBA…

天体物理学 · 物理学 2007-05-23 B. Guiderdoni , F. R. Bouchet , J. Devriendt , E. Hivon , J. L. Puget

The luminosity functions at z < 4 - 5 suggest that most galaxies have a relatively low stellar mass (logM_star = 10) and a low dust attenuation (A_FUV = 1.0). The physical properties of these objects are quite homogeneous. We used an…

(Abridged) This paper predicts self-consistent faint galaxy counts from the UV to the submm wavelength range. The STARDUST spectral energy distributions described in Devriendt et al. (1999) are embedded within the explicit cosmological…

天体物理学 · 物理学 2007-05-23 J. E. G. Devriendt , B. Guiderdoni

Semi-analytical models of galaxy formation based on hierarchical clustering now make a wide range of predictions for observable properties of galaxies at low and high redshift. This article concentrates on 2 aspects: (1) Self-consistent…

天体物理学 · 物理学 2007-05-23 Cedric Lacey , Carlton Baugh , Shaun Cole , Carlos Frenk , Fabio Governato

In this paper, we report on a first estimate of the contribution of galaxies to the diffuse extragalactic background from the far-UV to the submm, based on semi--analytic models of galaxy formation and evolution. We conclude that the global…

天体物理学 · 物理学 2007-05-23 J. E. G Devriendt , B. Guiderdoni , S. K. Sethi

We analyse the far-infrared properties of $\sim$ 5,000 star-forming galaxies at $z<4.5$, drawn from the deepest, super-deblended catalogues in the GOODS-N and COSMOS fields. We develop a novel panchromatic SED fitting algorithm,…

Mid-infrared (mid-IR) observations are crucial for understanding galaxy evolution, tracing star formation, and active galactic nuclei (AGN) activity via dust emission. This work presents mid-IR galaxy luminosity functions (LFs) at $0.5 < z…

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