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Related papers: The IRX-$\beta$ relation: Insights from simulation…

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Compared to starburst galaxies, normal star forming galaxies have been shown to display a much larger dispersion of the dust attenuation at fixed reddening through studies of the IRX-beta diagram (the IR/UV ratio "IRX" versus the UV color…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-20 M. Boquien , D. Calzetti , R. Kennicutt , D. Dale , C. Engelbracht , K. D. Gordon , S. Hong , J. C. Lee , J. Portouw

The observed UV continuum slope of star forming galaxies is strongly affected by the presence of dust. Its observation is then a potentially valuable diagnostic of dust attenuation, particularly at high-redshift where other diagnostics are…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Stephen M. Wilkins , Andrew Bunker , William Coulton , Rupert Croft , Tiziana Di Matteo , Nishikanta Khandai , Yu Feng

We aim to understand what drives the IRX-\beta dust attenuation relation at intermediate redshift (0.5 < z < 0.8) in star-forming galaxies. We investigate the role of various galaxy properties in shaping this observed relation. We use…

Astrophysics of Galaxies · Physics 2023-11-01 M. Hamed , F. Pistis , M. Figueira , K. Małek , A. Nanni , V. Buat , A. Pollo , D. Vergani , M. Bolzonella , Junais , J. Krywult , T. Takeuchi , G. Riccio , T. Moutard

A new Monte-Carlo radiative-transfer code, Sunrise, is used to study the effects of dust in N-body/hydrodynamic simulations of interacting galaxies. Dust has a profound effect on the appearance of the simulated galaxies. At peak…

Astrophysics · Physics 2009-08-05 Patrik Jonsson , T. J. Cox , Joel R. Primack

We provide a systematic measurement of the rest-frame UV continuum slope beta over a wide range in redshift (z~2-6) and rest-frame UV luminosity (0.1-2L*) to improve estimates of the SFR density at high redshift. We utilize the deep optical…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-20 R. J. Bouwens , G. D. Illingworth , M. Franx , R-R. Chary , G. R. Meurer , C. J. Conselice , H. Ford , M. Giavalisco , P. van Dokkum

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…

Recent studies have found a significant evolution and scatter in the IRX-$\beta$ relation at z > 4, suggesting different dust properties of these galaxies. The total far-infrared (FIR) luminosity is key for this analysis but poorly…

[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 discuss dust properties in the interstellar medium (ISM) of nearby normal galaxies, by comparing observations in the ultraviolet (UV) with simulations by a radiative transfer model. The observed UV colours of nearby galaxies show a…

Connecting the observed rest-ultraviolet (UV) luminosities of high-$z$ galaxies to their intrinsic luminosities (and thus star formation rates) requires correcting for the presence of dust. We bypass a common dust-correction approach that…

Astrophysics of Galaxies · Physics 2020-09-02 Jordan Mirocha , Charlotte Mason , Daniel P. Stark

Hubble Space Telescope observations with Wide Field Camera 3/IR reveal that galaxies at z~7 have very blue ultraviolet (UV) colors, consistent with these systems being dominated by young stellar populations with moderate or little…

Astrophysics of Galaxies · Physics 2015-06-16 Taysun Kimm , Renyue Cen

We combine data from SDSS and the GALEX and Spitzer observatories to create a sample of galaxies observed homogeneously from the UV to the Far-IR. This sample, consisting of ~460 galaxies observed spectroscopically by SDSS provides a…

Dust emission from high-redshift galaxies gives us a clue to the origin and evolution of dust in the early Universe. Previous studies have shown that different sources of dust (stellar dust production and dust growth in dense clouds)…

Astrophysics of Galaxies · Physics 2022-12-28 Yuan-Ming Hsu , Hiroyuki Hirashita , Yen-Hsing Lin , Peter Camps , Maarten Baes

Using a phenomenological approach, we self-consistently model the redshift evolution of the ultraviolet (UV) and infrared (IR) luminosity functions across cosmic time, as well as a range of observed IR properties of UV-selected galaxy…

Astrophysics of Galaxies · Physics 2015-06-19 E. Bernhard , M. Béthermin , M. Sargent , V. Buat , J. R. Mullaney , M. Pannella , S. Heinis , E. Daddi

We investigate dust obscuration as parameterised by the infrared excess IRX$\equiv$$L_{\rm IR}/L_{\rm UV}$ in relation to global galaxy properties, using a sample of $\sim$32$\,$000 local star-forming galaxies (SFGs) selected from SDSS,…

Astrophysics of Galaxies · Physics 2019-03-20 Jianbo Qin , X. Z. Zheng , Stijn Wuyts , Zhizheng Pan , Jian Ren

We present an analysis of the ultraviolet (UV) continuum slopes ($\beta$) for a sample of $172$ galaxy candidates at $8 < z_{\mathrm{phot}} < 16$ selected from a combination of JWST NIRCam imaging and COSMOS/UltraVISTA ground-based…

Galaxies' rest-frame ultraviolet (UV) properties are often used to directly infer the degree to which dust obscuration affects the measurement of star formation rates. While much recent work has focused on calibrating dust attenuation in…

We compile a new sample of 115 nearby, non-Seyfert galaxies spanning a wide range of star formation activities, from starburst to nearly dormant, based on ultraviolet (UV) observations with various satellites. We combine these observations…

Astrophysics · Physics 2009-11-10 X. Kong , S. Charlot , J. Brinchmann , S. M. Fall

We present an analysis of the UV continuum slope, beta, using a sample of 733 galaxies selected from a mixture of JWST ERS/GTO/GO observational programs and with z > 4. We consider spectroscopic data obtained with the low resolution…

We attempt to interpret existing data on the evolution of the UV luminosity function and UV colours, $\beta$, of galaxies at $5 \leq z \leq 8$, to improve our understanding of their dust content and ISM properties. To this aim, we…

Astrophysics of Galaxies · Physics 2016-07-21 Mattia Mancini , Raffaella Schneider , Luca Graziani , Rosa Valiante , Pratika Dayal , Umberto Maio , Benedetta Ciardi