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Related papers: Estimating dust attenuation from galactic spectra.…

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We present a method for accurately and precisely inferring photometric dust extinction towards stars at mid-to-high Galactic latitudes using probabilistic machine learning to model the colour-magnitude distribution of zero-extinction stars…

Astrophysics of Galaxies · Physics 2025-12-15 Matthew O'Callaghan , Kaisey S. Mandel , Gerry Gilmore

Variations in the attenuation law have a significant impact on observed spectral energy distributions for galaxies. As one important observational property for galaxies at ultraviolet and infrared wavelength bands, the correlation between…

Astrophysics of Galaxies · Physics 2014-06-20 Ye-Wei Mao , Xu Kong , Lin Lin

In this paper we aim to constrain for the first time the dust emission in the mid-to-far infrared domain, in the LMC, with the use of the Spitzer IRS and MIPS SED data, combined with Herschel data. We also consider UV extinction predictions…

Astrophysics of Galaxies · Physics 2023-06-21 D. Paradis , C. Mény , K. Demyk , A. Noriega-Crespo , I. Ristorcelli

We investigate early galaxy evolution by modeling self-consistently their radially-resolved evolution of gas, stars, heavy elements, and dust content. Our model successfully reproduces various observed properties of JWST-identified galaxies…

Astrophysics of Galaxies · Physics 2025-02-19 Daisuke Toyouchi , Hidenobu Yajima , Andrea Ferrara , Kentaro Nagamine

Aims. Our aim is to estimate the intergalactic medium transmission towards UV-selected star-forming galaxies at redshift 4 and above and study the effect of the dust attenuation on these measurements. Methods. The ultra-violet spectrum of…

We present predictions for the extent of the dust-continuum emission of thousands of main-sequence galaxies drawn from the TNG50 simulation between $z=1-5$. To this aim, we couple the radiative transfer code SKIRT to the output of the TNG50…

The Planck mission provided all-sky dust emission maps in the submm to mm range at an angular resolution of 5'. In addition, some specific sources can be observed at long wavelengths and higher resolution using ground-based telescopes.…

Astrophysics of Galaxies · Physics 2024-10-15 D. Paradis , C. Mény , A. Noriega-Crespo , K. Demyk , I. Ristorcelli , N. Ysard

Our ability to interpret observations of galaxies and trace their stellar, gas, and dust content over cosmic time critically relies on our understanding of how the dust abundance and properties vary with environment. Here, we compute the…

Astrophysics of Galaxies · Physics 2023-05-16 Céline Péroux , Annalisa De Cia , J. Christopher Howk

Optical/UV photons and even harder radiation components in galaxies are absorbed and scattered by dust and re-emitted at infrared wavelengths. For a better understanding of the obscured regions of the galaxies detailed models of the…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 Ralf Siebenmorgen , Frank Heymann

Fitting model spectral energy distributions (SED) to galaxy photometric data is a widely used method to recover galaxy parameters from galaxy surveys. However, the parameter space used to describe galaxies is wide and interdependent, and…

Astrophysics of Galaxies · Physics 2023-08-29 Cole Meldorf , Antonella Palmese , Samir Salim

We present the Empirical Dust Attenuation (EDA) framework -- a flexible prescription for assigning realistic dust attenuation to simulated galaxies based on their physical properties. We use the EDA to forward model synthetic observations…

We present corrections for the change in the apparent scalelengths, central surface brightnesses and axis ratios due to the presence of dust in pure disk galaxies, as a function of inclination, central face-on opacity in the B-band…

Astrophysics · Physics 2009-11-11 C. Möllenhoff , C. C. Popescu , R. J. Tuffs

We relate the optical attenuation inferred by the Balmer decrement, $A_{V\mathrm{,BD}}$, and by the SED-fitting, $A_{V\mathrm{,SED}}$, to the dust distribution and gas surface density throughout the disc of galaxies, down to scales smaller…

Astrophysics of Galaxies · Physics 2025-10-29 E. D. Paspaliaris , S. Bianchi , E. Corbelli , A. Concas

The description of the statistical properties of dust emission gives important constraints on the physics of the interstellar medium but it is also a useful way to estimate the contamination of diffuse interstellar emission in the cases…

Astrophysics · Physics 2009-11-13 M. -A. Miville-Deschenes , G. Lagache , F. Boulanger , J. -L. Puget

We introduce a non-parametric approach, the Stellar Population Synthesis with Equivalent Widths (SEW) method, to reconstruct spectrally-resolved attenuation curves for 169,568 star-forming galaxies from the Sloan Digital Sky Survey Data…

Astrophysics of Galaxies · Physics 2026-01-09 Jiafeng Lu , Xi Kang , Shiyin Shen , Qi Zeng , Shuai Feng

Aims. We derive a dependence of the IRX on UV slope $\beta$, stellar mass $M_\ast$, and redshift out to $z \simeq 5$, and establish consistent functional relations that can be used for correcting the UV/optical-selected galaxy samples for…

Astrophysics of Galaxies · Physics 2026-02-05 J. V. Wijesekera , M. P. Koprowski , J. S. Dunlop , K. Lisiecki , D. J. McLeod , R. J. McLure , M. J. Michałowski , M. Solar

Using spectroscopically selected galaxies from the Sloan Digital Sky Survey we present a detection of reddening due to dust in the circumgalactic medium of galaxies. We detect the mean change in the colors of "standard crayons" correlated…

Astrophysics of Galaxies · Physics 2015-10-28 J. E. G. Peek , Brice Ménard , Lia Corrales

Fundamental properties of the extinction curve, like the slope in the rest-frame ultraviolet (UV) and the presence/absence of a broad absorption excess centred at 2175 A (the UV bump), are investigated for a sample of 108 massive,…

Astrophysics · Physics 2009-11-13 S. Noll , D. Pierini , M. Pannella , S. Savaglio

We present a simple, largely empirical but physically motivated model to interpret the mid- and far-infrared spectral energy distributions of galaxies consistently with the emission at ultraviolet, optical and near-infrared wavelengths. Our…

Astrophysics · Physics 2009-11-13 Elisabete da Cunha , Stephane Charlot , David Elbaz

The meaningful comparison of models of galaxy evolution to observations is critically dependent on the accurate treatment of dust attenuation. To investigate dust absorption and emission in galaxies we have assembled a sample of ~1000…