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The ability to robustly determine galaxy properties such as masses, ages and star-formation rates is critically limited by the ability to accurately measure dust attenuation. Dust reddening is often characterized by comparing observations…

Astrophysics of Galaxies · Physics 2023-11-29 Daniel Maschmann , Claus Leitherer , Andreas L. Faisst , Janice C. Lee , Rebecca Minsley

We use a sample of 149 spectroscopically confirmed UV-selected galaxies at $z\sim 2$ to investigate the relative dust attenuation of the stellar continuum and the nebular emission lines. For each galaxy in the sample, at least one…

Astrophysics of Galaxies · Physics 2017-03-22 S. de Barros , N. Reddy , I. Shivaei

Dust has long been identified as a barrier to measuring inherent galaxy properties. However, the link between dust and attenuation is not straightforward and depends on both the amount of dust and its distribution. Herschel imaging of…

The presence of dust in starburst galaxies complicates the study of their stellar populations as the dust's effects are similar to those associated with changes in the galaxies' stellar age and metallicity. This degeneracy can be overcome…

Astrophysics · Physics 2009-10-31 Karl D. Gordon , Geoffrey C. Clayton , Adolf N. Witt , K. A. Misselt

Dust attenuations observed by stars and ionized gas are not necessarily the same. The lack of observational constraints on the nebular dust attenuation curve leaves a large uncertainty when correcting nebular dust attenuation with stellar…

Astrophysics of Galaxies · Physics 2024-11-18 Zesen Lin , Renbin Yan

We investigate dust attenuation and its dependence on viewing angle for 308 star-forming galaxies at $1.3\leq z\leq2.6$ from the MOSFIRE Deep Evolution Field (MOSDEF) survey. We divide galaxies with a detected H$\alpha$ emission line and…

We investigate the dust attenuation in both stellar populations and ionized gas in kpc-scale regions in nearby galaxies, using integral field spectroscopy data from MaNGA MPL-9. We identify star-forming (HII) and diffuse ionized gas (DIG)…

Optical nebular emission lines are commonly used to estimate the star formation rate of galaxies and the black hole accretion rate of their central active nucleus. The accuracy of the conversion from line strengths to physical properties…

We use a sample of 532 star-forming galaxies at redshifts $z\sim 1.4-2.6$ with deep rest-frame optical spectra from the MOSFIRE Deep Evolution Field (MOSDEF) survey to place the first constraints on the nebular attenuation curve at high…

We use medium resolution JWST/NIRSpec observations from the Cosmic Evolution Early Release Science (CEERS) Survey to place the first constraints on dust attenuation and star formation based on the Paschen lines for a sizable sample of 63…

Astrophysics of Galaxies · Physics 2023-05-17 Naveen A. Reddy , Michael W. Topping , Ryan L. Sanders , Alice E. Shapley , Gabriel Brammer

The nature of dust in distant galaxies is not well understood, and until recently few direct dust measurements have been possible. We investigate dust in distant star-forming galaxies using near-infrared grism spectra of the 3D-HST survey…

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

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

We explore the possibility and practical limitations of using a three-line approach to measure both the slope and normalization of the dust attenuation law in individual galaxies. To do this, we focus on a sample of eleven galaxies with…

Astrophysics of Galaxies · Physics 2022-04-06 Moire K. M. Prescott , Kristian M. Finlator , Nikko J. Cleri , Jonathan R. Trump , Casey Papovich

We have used extensive libraries of model and empirical galaxy spectra (assembled respectively from the population synthesis code of Bruzual and Charlot and the fourth data release of the Sloan Digital Sky Survey) to interpret some puzzling…

Astrophysics · Physics 2009-10-08 Jarle Brinchmann , Max Pettini , Stephane Charlot

We use a sample of $78,340$ star-forming galaxies at $z\simeq 0.04-0.1$ from the SDSS DR8 survey to calculate the average nebular dust attenuation curve and its variation with the physical properties of galaxies. Using the first four…

Astrophysics of Galaxies · Physics 2021-07-30 Saeed Rezaee , Naveen Reddy , Irene Shivaei , Tara Fetherolf , Najmeh Emami , AliAhmad Khostovan

We present an analysis of the star-formation rates (SFRs) and dust attenuation properties of star-forming galaxies at $2.7\leq z<6.5$ drawn from the Cosmic Evolution Early Release Science (CEERS) Survey. Our analysis is based on {\it…

Astrophysics of Galaxies · Physics 2023-08-21 Alice E. Shapley , Ryan L. Sanders , Naveen A. Reddy , Michael W. Topping , Gabriel B. Brammer

We present empirical relations between the global dust reddening and other physical galaxy properties including the Halpha luminosity, Halpha surface brightness, metallicity and axial ratio for star-forming disc galaxies. The study is based…

Cosmology and Nongalactic Astrophysics · Physics 2012-03-12 Ting Xiao , Tinggui Wang , Huiyuan Wang , Hongyan Zhou , Honglin Lu , Xiaobo Dong

We present results from a dual narrow-band imaging survey targeting the CL1604 supercluster at z = 0.9 using the Subaru Telescope. By combining the NB921 filter on HSC and the NB1244 filter on SWIMS, we can detect redshifted H$\alpha$ and…

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