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Related papers: A radiative transfer model for the spiral galaxy M…

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In this work, we characterise the contributions from both ongoing star formation and the ambient radiation field in Local Group galaxy M33, as well as estimate the scale of the local dust-energy balance (i.e. the scale at which the dust is…

A quantitative derivation of the intrinsic properties of galaxies related to their fundamental building blocks, gas, dust and stars is essential for our understanding of galaxy evolution. A fully self-consistent derivation of these…

Astrophysics of Galaxies · Physics 2023-10-06 Christopher J. Inman , Cristina C. Popescu , Mark T. Rushton , David Murphy

We present an axi-symmetric model for the ultraviolet (UV)-to-submillimetre (submm) images of the nearly face-on spiral galaxy NGC 628. It was calculated using a radiative transfer (RT) code, accounting for the absorption and re-emission of…

Astrophysics of Galaxies · Physics 2022-06-08 M. T. Rushton , C. C. Popescu , C. Inman , G. Natale , D. Pricopi

Context: Dust reprocesses about half of the stellar radiation in galaxies. The thermal re-emission by dust of absorbed energy is considered driven merely by young stars and, consequently, often applied to trace the star formation rate in…

Interstellar dust absorbs stellar light very efficiently and thus shapes the energetic output of galaxies. Studying the impact of different stellar populations on the dust heating remains hard because it requires decoupling the relative…

We obtained an axi-symmetric model for the large-scale distribution of stars and dust in the Milky Way (MW) using a radiative transfer code that can account for the existing near-infrared (NIR)/mid-infrared/submm all-sky emission maps of…

Astrophysics of Galaxies · Physics 2022-01-19 Giovanni Natale , Cristina C. Popescu , Mark Rushton , Ruizhi Yang , Jordan J. Thirlwall , Dumitru Pricopi

Solving the inverse problem in spiral galaxies, that allows the derivation of the spatial distribution of dust, gas and stars, together with their associated physical properties, directly from panchromatic imaging observations, is one of…

Astrophysics of Galaxies · Physics 2024-12-30 D. Pricopi , C. C. Popescu , M. T. Rushton , D. Murphy , C. J. Inman , R. Toma

Aims. We use different tracers, such as Ha, ultraviolet (UV), and infrared (IR) emissions at various wavelengths, to study the dust and star-formation (SF) conditions throughout the disk of M33. Methods. We derive the radial distribution of…

Astrophysics · Physics 2009-11-13 S. Verley , E. Corbelli , C. Giovanardi , L. K. Hunt

We present a detailed study of the dust energy balance in the Sombrero galaxy M104. From a full radiative transfer analysis, including scattering, absorption and thermal re-emission, we construct models that can reproduce images at…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Ilse De Looze , Maarten Baes , Jacopo Fritz , Joris Verstappen

To facilitate the study of black hole fueling, star formation, and feedback in galaxies, we outline a method for treating the radial forces on interstellar gas due to absorption of photons by dust grains. The method gives the correct…

Astrophysics of Galaxies · Physics 2015-06-04 G. S. Novak , J. P. Ostriker , L. Ciotti

We describe a new tool for the analysis of the UV to the sub-millimeter (sub-mm) spectral energy distribution (SED) of spiral galaxies. We use a consistent treatment of grain heating and emission, solve the radiation transfer problem for a…

[Abridged] We present a new approach to investigate the content and spatial distribution of dust in structurally unresolved star-forming galaxies from the observed dependence of integrated spectral properties on galaxy inclination. We…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 Jacopo Chevallard , Stephane Charlot , Benjamin Wandelt , Vivienne Wild

We present a self-consistent model of the spectral energy distributions (SEDs) of spiral galaxies from the ultraviolet (UV) to the mid-infrared (MIR)/far-infrared (FIR)/submillimeter (submm) based on a full radiative transfer calculation of…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Cristina C. Popescu , Richard J. Tuffs , Michael A. Dopita , Joerg Fischera , Nikolaos D. Kylafis , Barry F. Madore

(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

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 radiation of stars heats dust grains in the diffuse interstellar medium and in star-forming regions in galaxies. Modelling this interaction provides information on dust in galaxies, a vital ingredient for their evolution. It is not…

We present radiation transfer (RT) simulations of evolutionary sequences of massive protostars forming from massive dense cores in environments of high surface densities. The protostellar evolution is calculated with a detailed multi-zone…

Astrophysics of Galaxies · Physics 2015-06-18 Yichen Zhang , Jonathan C. Tan , Takashi Hosokawa

The Sc galaxy M33 has been mapped with ISOPHOT in the far-infrared, at 60, 100, and 170mue. The spatial resolution of these FIR maps allows the separation of spiral arms and interarm regions and the isolation of a large number of…

Astrophysics · Physics 2009-11-10 H. Hippelein , M. Haas , R. J. Tuffs , D. Lemke , M. Stickel , U. Klaas , H. J. Voelk

In 1992 the Far-Ultraviolet Space Telescope (FAUST) provided measurements of the ultraviolet (140-180nm) diffuse sky background at high, medium, and low Galactic latitudes. A significant fraction of the detected radiation was found to be of…

Astrophysics · Physics 2009-10-30 Adolf N. Witt , Brian C. Friedmann , Timothy P. Sasseen

We present detailed modelling of the spectral energy distribution (SED) of the spiral galaxies NGC 891, NGC 4013, and NGC 5907 in the far-infrared (FIR) and sub-millimeter (submm) wavelengths. The model takes into account the emission of…

Astrophysics · Physics 2009-11-10 K. M. Dasyra , E. M. Xilouris , A. Misiriotis , N. D. Kylafis
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