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While the slope of the dust attenuation curve ($\delta$) is found to correlate with effective dust attenuation ($A_V$) as obtained through spectral energy distribution (SED) fitting, it remains unknown how the fitting degeneracies shape…

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

This letter utilizes composite spectral energy distributions (SEDs) constructed from NEWFIRM Medium-Band Survey photometry to constrain the dust attenuation curve in 0.5<z<2.0 galaxies. Based on similarities between the full SED shapes…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 Mariska Kriek , Charlie Conroy

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

Attenuation curves in galaxies depend on dust chemical composition, content, and grain size distribution. Such parameters are related to intrinsic galaxy properties such as metallicity, star formation rate, and stellar age. Due to the lack…

Astrophysics of Galaxies · Physics 2023-11-01 V. Markov , S. Gallerani , A. Pallottini , L. Sommovigo , S. Carniani , A. Ferrara , E. Parlanti , F. Di Mascia

We present the results of a new study of dust attenuation at redshifts $3 < z < 4$ based on a sample of $236$ star-forming galaxies from the VANDELS spectroscopic survey. Motivated by results from the First Billion Years (FiBY) simulation…

Dust attenuation affects nearly all observational aspects of galaxy evolution, yet very little is known about the form of the dust-attenuation law in the distant Universe. Here, we model the spectral energy distributions (SEDs) of galaxies…

A variety of dust attenuation/extinction curves have been observed in high-redshift galaxies, with mixed results regarding their correlations with global galaxy properties. These variations are likely driven by factors such as intrinsic…

Astrophysics of Galaxies · Physics 2025-10-15 V. Markov , S. Gallerani , A. Pallottini , M. Bradac , S. Carniani , R. Tripodi , G. Noirot , F. Di Mascia , E. Parlanti , N. Martis

We study two galaxy samples selected in ultraviolet (UV) and in far-infrared (FIR) for which the spectral energy distributions (SEDs) from the far UV (FUV) to the FIR are available. We compare the observed SEDs to modelled SEDs with several…

Astrophysics · Physics 2009-11-11 Denis Burgarella , Veronique Buat , Jorge Iglesias-Paramo

We use observed optical to near infrared spectral energy distributions (SEDs) of 266 galaxies in the COSMOS survey to derive the wavelength dependence of the dust attenuation at high redshift. All of the galaxies have spectroscopic…

Astrophysics of Galaxies · Physics 2015-06-23 Nick Scoville , Andreas Faisst , Peter Capak , Yuko Kakazu , Gongjie Li , Charles Steinhardt

A new method is developed for estimating photometric redshifts to galaxies, using realistic template SEDs, extending over four decades in wavelength (i.e. from 0.05 micron to 1 mm). The template SEDs are constructed for four different…

Astrophysics · Physics 2007-05-23 Bahram Mobasher , Paola Mazzei

Dust plays a pivotal role in determining the observed spectral energy distribution (SED) of galaxies. Yet our understanding of dust attenuation is limited and our observations suffer from the dust-metallicity-age degeneracy in SED fitting…

Astrophysics of Galaxies · Physics 2022-06-22 Gautam Nagaraj , John C. Forbes , Joel Leja , Daniel Foreman-Mackey , Christopher C. Hayward

Dust attenuation shapes the spectral energy distribution of galaxies. It is particularly true for dusty galaxies in which stars experience a heavy attenuation. The combination of UV-to-IR photometry with the spectroscopic measurement of the…

Astrophysics of Galaxies · Physics 2018-11-21 V. Buat , M. Boquien , K. Malek , D. Corre , H. salas , Y. Roehlly , R. Shirley , A. Efstathiou

One of the most common methods for inferring galaxy attenuation curves is via spectral energy distribution (SED) modeling, where the dust attenuation properties are modeled simultaneously with other galaxy physical properties. In this…

Astrophysics of Galaxies · Physics 2022-05-25 Sidney Lower , Desika Narayanan , Joel Leja , Benjamin D. Johnson , Charlie Conroy , Romeel Dave

Understanding the impact of dust on the spectral energy distributions (SEDs) of galaxies is crucial for inferring their physical properties and for studying the nature of interstellar dust. We analyze dust attenuation curves for $\sim 6400$…

The dust attenuation for a sample of $\sim$10000 local ($z\lesssim0.1$) star forming galaxies is constrained as a function of their physical properties. We utilize aperture-matched multi-wavelength data available from the Galaxy Evolution…

Astrophysics of Galaxies · Physics 2016-02-17 A. J. Battisti , D. Calzetti , R. -R. Chary

A diverse range of dust attenuation laws is found in star-forming galaxies. In particular, Tress et al. (2018) studied the SHARDS survey to constrain the NUV bump strength (B) and the total-to selective ratio (Rv) of 1,753 star-forming…

Astrophysics of Galaxies · Physics 2020-05-07 M. Tress , I. Ferreras , P. G. Pérez-González , A. Bressan , G. Barro , H. Domínguez-Sánchez , C. Eliche-Moral

We analyse the joint distribution of dust attenuation and projected axis ratios, together with galaxy size and surface brightness profile information, to infer lessons on the dust content and star/dust geometry within star-forming galaxies…

(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
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