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The spectral energy distribution (SED) of a galaxy represents the distribution of electromagnetic radiation emitted across all wavelengths, from radio waves to gamma rays. The galaxy SED is akin to its fingerprint, and serves as a…

Astrophysics of Galaxies · Physics 2025-02-26 Kartheik G. Iyer , Camilla Pacifici , Gabriela Calistro-Rivera , Christopher C. Lovell

The current and forthcoming observations of large samples of high-redshift galaxies selected according to various photometric and spectroscopic criteria can be interpreted in the context of galaxy formation, by means of models of evolving…

Astrophysics · Physics 2007-05-23 B. Guiderdoni , J. E. G. Devriendt

The formation and evolution of galaxies can be followed in the context of cosmological structure formation using the technique of semi-analytic modelling. We give a brief outline of the features incorporated into the semi-analytic model of…

Astrophysics · Physics 2007-05-23 C. M. Baugh , A. J. Benson , S. Cole , C. S. Frenk , C. G. Lacey

We present a new numerical code which is designed to derive a spectral energy distribution (SED) for an arbitrary spatial distribution of stellar and gaseous components in a dusty starburst galaxy. We apply a ray tracing method to numerical…

Astrophysics · Physics 2009-10-31 Kenji Bekki , Yasuhiro Shioya

We present the basic features and preliminary results of the interface between our spectro-photometric model GRASIL (that calculates galactic SED from the UV to the sub-mm with a detailed computation of dust extinction and thermal…

Astrophysics · Physics 2007-05-23 L. Silva , G. L. Granato , A. Bressan , C. G. Lacey , C. M. Baugh , S. Cole , C. S. Frenk

The spectral energy distribution (SED) of galaxies provides fundamental information on the related physical processes. However, the SED is significantly affected by dust in its interstellar medium. Dust is mainly produced by asymptotic…

Astrophysics of Galaxies · Physics 2022-05-25 Kazuki Y. Nishida , Tsutomu T. Takeuchi , Takuma Nagata , Ryosuke S. Asano

The spectral energy distributions (SEDs) of galaxies are shaped by nearly every physical property of the system, including the star formation history, metal content, abundance pattern, dust mass, grain size distribution, star-dust geometry,…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Charlie Conroy

Semi-analytical models (SAMs) are currently the best way to understand the formation of galaxies within the cosmic dark-matter structures. While they fairly well reproduce the local stellar mass functions, correlation functions and…

Astrophysics of Galaxies · Physics 2015-02-25 Morgane Cousin , Guilaine Lagache , Matthieu Bethermin , Jeremy Blaizot , Bruno Guiderdoni

We present photometric evolution models of galaxies, in which, in addition to the stellar component, the effects of an evolving dusty interstellar medium have been included with particular care. Starting from the work of Calura, Pipino &…

Astrophysics of Galaxies · Physics 2009-11-13 A. Schurer , F. Calura , L. Silva , A. Pipino , G. L. Granato , F. Matteucci , R. Maiolino

Understanding how galaxy populations emerge and evolve from the growth of dark matter structure is a central challenge in galaxy formation theory. Semi-analytic models (SAMs) provide an efficient framework to address this problem, but…

Astrophysics of Galaxies · Physics 2026-05-05 Xuejie Li , Zhongxu Zhai , Xiaohu Yang , Andrew Benson , Yun Wang

We apply the spectral energy distribution (SED) fitting code ProSpect to multiwavelength imaging for $\sim$7,000 galaxies from the GAMA survey at $z<0.06$, in order to extract their star formation histories. We combine a parametric…

Advances in extragalactic astronomy have prompted the development of increasingly realistic models which aim to describe the formation and evolution of galaxies. We review the philosophy behind one such technique, called semi-analytic…

Astrophysics · Physics 2009-11-07 C. M. Baugh , A. J. Benson , S. Cole , C. S. Frenk , C. Lacey

(abridged) We present STARDUST, a new self-consistent modelling of the spectral energy distributions (SEDs) of galaxies from far-UV to radio wavelengths. In order to derive the SEDs in this broad spectral range, we first couple…

Astrophysics · Physics 2009-09-25 J. E. G. Devriendt , B. Guiderdoni , R. Sadat

We study the metallicities and abundance ratios of early-type galaxies in cosmological semi-analytic models (SAMs) within the hierarchical galaxy formation paradigm. To achieve this we implemented a detailed galactic chemical evolution…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 Matías Arrigoni , Scott C. Trager , Rachel S. Somerville , Brad K. Gibson

[abridged]We calculate multi-wavelength spectral energy distributions (SEDs) (spanning optical to millimeter wavelengths) from simulations of major galaxy mergers with black hole feedback which produce submillimeter bright galaxies (SMGs),…

Astrophysics · Physics 2009-11-11 Sukanya Chakrabarti , Yeshe Fenner , Lars Hernquist , T. J. Cox , Philip F. Hopkins

Fitting the spectral energy distributions (SEDs) of galaxies is an almost universally used technique that has matured significantly in the last decade. Model predictions and fitting procedures have improved significantly over this time,…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 C. J. Walcher , B. Groves , T. Budavari , D. Dale

We describe a new, free and open source semi-analytic model of galaxy formation, Galacticus. The Galacticus model was designed to be highly modular to facilitate expansion and the exploration of alternative descriptions of key physical…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Andrew J. Benson

We present two different projects. The first one is related to the development of a semi-analytic model to follow the formation, the evolution and chemical enrichment of cluster galaxies in a hierarchical dark matter model. The second…

Astrophysics · Physics 2007-05-23 Gabriella De Lucia , Guinevere Kauffmann , Simon D. M. White

Any realistic theory of galaxy formation must be set in the context of a model for the formation of structure in the universe. We describe a powerful approach -- semi-analytic modelling -- that combines a set of simple rules describing the…

Astrophysics · Physics 2007-05-23 C. M. Baugh , S. Cole , C. S. Frenk , A. J. Benson , C. G. Lacey

We present a detailed analysis of our ability to determine stellar masses, ages, reddening and extinction values, and star formation rates of high-redshift galaxies by modeling broad-band SEDs with stellar population synthesis. In order to…

Cosmology and Nongalactic Astrophysics · Physics 2011-02-11 Stijn Wuyts , Marijn Franx , Thomas J. Cox , Lars Hernquist , Philip F. Hopkins , Brant E. Robertson , Pieter G. van Dokkum
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