中文
相关论文

相关论文: Modeling IR Spectral Energy Distributions: A Pilot…

200 篇论文

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…

星系天体物理 · 物理学 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,…

宇宙学与河外天体物理 · 物理学 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.…

宇宙学与河外天体物理 · 物理学 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…

天体物理学 · 物理学 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…

宇宙学与河外天体物理 · 物理学 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…

天体物理学 · 物理学 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…

天体物理学 · 物理学 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…

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…

宇宙学与河外天体物理 · 物理学 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.…

天体物理学 · 物理学 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…

天体物理学 · 物理学 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…

天体物理学 · 物理学 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…

天体物理学 · 物理学 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…

天体物理学 · 物理学 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…

天体物理学 · 物理学 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,…

宇宙学与河外天体物理 · 物理学 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…

天体物理学 · 物理学 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),…

天体物理学 · 物理学 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…

星系天体物理 · 物理学 2024-05-08 Subhrata Dey , Arti Goyal , Katarzyna Małek , Tanio Díaz-Santos
‹ 上一页 1 2 3 10 下一页 ›