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Sophisticated spectral energy distribution (SED) models describe dust attenuation and emission using geometry parameters. This treatment is natural since dust effects are driven by the underlying star-dust geometry in galaxies. An example…

Astrophysics of Galaxies · Physics 2022-12-28 Yisheng Qiu , Xi Kang , Yu Luo

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

Spectral Energy Distribution (SED) fitting in the far-infrared (FIR) is greatly limited by a dearth of data and an excess of free parameters - from galaxies' dust composition, temperature, mass, orientation, opacity, to heating from AGN.…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Caitlin M. Casey

(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

To understand and interpret the observed Spectral Energy Distributions (SEDs) of starbursts, theoretical or semi-empirical SED models are necessary. Yet, while they are well-founded in theory, independent verification and calibration of…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 J. R. Martínez-Galarza , B. Groves , B. Brandl , G. E. de Messieres , R. Indebetouw , M. A. Dopita

We present results of a self-consistent model of the spectral energy distribution (SED) of starburst galaxies. Two parameters control the IR SED, the mean pressure in the ISM and the destruction timescale of molecular clouds. Adding a…

Astrophysics · Physics 2009-11-10 M. A. Dopita

We provide a library of some 7000 SEDs (available at www.eso.org/~rsiebenm) for the nuclei of starburst and ultra luminous galaxies. Its purpose is to quickly obtain estimates of the basic parameters, such as luminosity, size and dust or…

Astrophysics · Physics 2009-11-11 Ralf Siebenmorgen , Endrik Kruegel

We present model spectral energy distribution (SED) fits to ultraviolet/optical/infrared observations for the 258 nearby galaxies in the Local Volume Legacy survey, a sample dominated by lower-luminosity dwarf irregular systems. The data…

Astrophysics of Galaxies · Physics 2023-06-07 Daniel A. Dale , Mederic Boquien , Jordan A. Turner , Daniela Calzetti , Robert C. Kennicutt , Janice C. Lee

Spectral Energy Distribution (SED) fitting is a well-developed astrophysical tool that has recently been applied to high-redshift Lyman Alpha-emitting galaxies. If rest-frame ultraviolet through near-infrared photometry is available, it…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 Eric Gawiser

We present a SED model of dusty galaxies, in which the equation of radiative transfer is solved by assuming spherical symmetry. The temperature fluctuation of very small dust particles is calculated consistently with the radiative transfer.…

Astrophysics · Physics 2015-06-24 Toshinobu Takagi , Vladas Vansevicius , Nobuo Arimoto

We provide a library of some 7000 SEDs for starbursts and ultra luminous galaxies (http://www.eso.org/~rsiebenm/sb_models). Its purpose is to quickly obtain estimates of the basic parameters, such as luminosity, size and dust or gas mass…

Astrophysics · Physics 2007-05-23 Ralf Siebenmorgen , Endrik Kruegel

Present AGN and starburst models aiming to account for the observed infrared SEDs consider a physical description of the dust and a solution of the radiative transfer problem. MIR spectra obtained at different spatial scales (SST-IRS, ISO…

Astrophysics · Physics 2007-05-23 Ralf Siebenmorgen

In this paper, we present spectrophotometric models for galaxies of different morphological type whose spectral energy distributions (SEDs) take into account the effect of dust in absorbing UV-optical light and re-emitting it in the…

Astrophysics · Physics 2009-11-11 Lorenzo Piovan , Rosaria Tantalo , Cesare Chiosi

As a logical next step in improving the radio-to-submm spectral index as a redshift indicator (Carilli & Yun 1999), we have investigated a technique of using the entire radio-to-FIR spectral energy distribution (SED) for deriving…

Astrophysics · Physics 2009-10-26 Min S. Yun , C. L. Carilli

We combine the the stellar spectral synthesis code Starburst99, the nebular modelling code MAPPINGSIII, and a 1-D dynamical evolution model of HII regions around massive clusters of young stars to generate improved models of the spectral…

Astrophysics · Physics 2009-11-13 B. Groves , M. Dopita , R. Sutherland , L. Kewley , J. Fischera , C. Leitherer , B. Brandl , W. van Breugal

We present a simple, largely empirical but physically motivated model, which is designed to interpret consistently multi-wavelength observations from large samples of galaxies in terms of physical parameters, such as star formation rate,…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Elisabete da Cunha , Stephane Charlot , David Elbaz

We present the results of an extensive literature search of multiwavelength data for a sample of 59 galaxies, consisting of 26 Starbursts, 15 Seyfert 2's, 5 LINER's, 6 normal spirals and 7 normal elliptical galaxies. The data include soft…

Astrophysics · Physics 2009-10-30 H. R. Schmitt , A. L. Kinney , D. Calzetti , T. Storchi-Bergmann

New far-infrared and submillimeter data are used to solidify and to extend to long wavelengths the empirical calibration of the infrared spectral energy distribution (SED) of normal star-forming galaxies. As was found by Dale et al. (2001),…

Astrophysics · Physics 2008-11-26 Daniel A. Dale , George Helou

We present detailed spectral energy distribution (SED) modeling of 14 local ultraluminous infrared galaxies (ULIRGs) with outstanding photometric data from the literature covering the ultraviolet--infrared (FIR) and radio bands ($\sim$50…

Astrophysics of Galaxies · Physics 2024-05-08 Subhrata Dey , Arti Goyal , Katarzyna Małek , Tanio Díaz-Santos
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