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Related papers: Dust Attenuation Curve for Local Subgalactic Star-…

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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)…

The EAGLE cosmological simulations reproduce the observed galaxy stellar mass function and many galaxy properties. In this work, we study the dust-related properties of present-day EAGLE galaxies through mock observations in the…

Astrophysics of Galaxies · Physics 2016-08-17 Peter Camps , James W. Trayford , Maarten Baes , Tom Theuns , Matthieu Schaller , Joop Schaye

We investigate the environmental dependence of galaxies with star formation from a volume-limited sample of 4782 nearby field galaxy spectra extracted from the 2dF Galaxy Redshift Survey final data release. The environment is characterized…

Astrophysics · Physics 2009-11-10 Abilio Mateus , Laerte Sodre

We present a spectroscopic study of low-mass galaxies (LMGs;$10^8\leq\rm M_*/M_\odot\leq10^9$) at $z\sim0.15$ in COSMOS field, and compare it to a control sample of intermediate-mass galaxies (IMGs;$10^9\leq\rm M_*/M_\odot\leq10^{10}$) at…

Astrophysics of Galaxies · Physics 2026-04-01 Zahra Sattari , Daniel D. Kelson , Bahram Mobasher , Nima Chartab , Vihang Mehta , Harry I. Teplitz , Shannon G. Patel

We present new constraints on dust attenuation and star-formation rates (SFRs) for 77 galaxies at redshifts $z=1.43-2.65$, using Paschen emission line detections from the JWST FRESCO survey and ground-based Balmer line measurements from the…

A fundamental assumption adopted in nearly every extragalactic emission-line study is that the attenuation of different emission lines can be described by a single attenuation curve. Here we show this assumption fails in many cases with…

We analyze the distribution of rest-frame U-V and V-J colors for star-forming galaxies at 0.5 < z < 2.5. Using stellar population synthesis, stochastic star formation histories, and a simple prescription for the dust attenuation that…

Astrophysics of Galaxies · Physics 2021-12-08 Leah Zuckerman , Sirio Belli , Joel Leja , Sandro Tacchella

Dust attenuation varies substantially from galaxy to galaxy and as of yet cannot be reproduced from first principles in theoretical models. In Nagaraj et al. (2022), we developed the first Bayesian population model of dust attenuation as a…

Astrophysics of Galaxies · Physics 2022-11-09 Gautam Nagaraj , John C. Forbes , Joel Leja , Dan Foreman-Mackey , Christopher C. Hayward

The nearby universe remains the best laboratory to understand physical properties of galaxies and is a reference for any comparison with high redshift observations. The all sky (or very large) surveys performed from the ultraviolet (UV) to…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 V. Buat , E. Giovannoli , T. T. Takeuchi , S. Heinis , F. T. Yuan , D. Burgarella , S. Noll , J. Iglesias-Paramo

We present dust attenuation properties of spectroscopically confirmed star forming galaxies on the main sequence at a redshift of ~4.4-5.8. Our analyses are based on the far infrared continuum observations of 118 galaxies at rest-frame…

We compare the dust attenuation properties of two samples of galaxies purely selected in the near-ultraviolet (NUV) band (1750-2750 A, lambda_m = 2310 A) and in the far-infrared (FIR) at 60micron. These samples are built using the GALEX and…

We derive average radial gradients in the dust attenuation towards HII regions in 609 galaxies at z~1.4, using measurements of the Balmer decrement out to r~3kpc. The Balmer decrements are derived from spatially resolved maps of Halpha and…

Many investigations of star formation rates (SFRs) in galaxies have explored details of dust obscuration, with a number of recent analyses suggesting that obscuration appears to increase in systems with high rates of star formation. To date…

Astrophysics · Physics 2008-12-18 J. Afonso , A. Hopkins , B. Mobasher , C. Almeida

We present infrared views of the environmental effects on the dust properties in star-forming (SF) galaxies at z ~ 0, using the AKARI Far-Infrared Surveyor (FIS) all-sky map and the large spectroscopic galaxy sample from Sloan Digital Sky…

Astrophysics of Galaxies · Physics 2017-01-25 Yasuhiro Matsuki , Yusei Koyama , Takao Nakagawa , Satoshi Takita

We present our analysis of UV attenuation by internal dust of a large sample (N=906 galaxies) of Lyman Break Galaxies (LBGs). Using spectral energy distributions (SEDs) from the P\'EGASE galaxy spectral evolution model we apply dust…

Astrophysics · Physics 2009-11-07 Uma P. Vijh , Adolf N. Witt , Karl D. Gordon

The dust attenuation of galaxies is highly diverse and closely linked to stellar population properties and the star dust geometry, yet its relationship to galaxy morphology remains poorly understood. We present a study of 141 galaxies…

[abridged] While observations of Local Group galaxies show a very simple, local star formation law in which the star formation rate per unit area in each patch of a galaxy scales linearly with the molecular gas surface density, recent…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Mark R. Krumholz , Avishai Dekel , Christopher F. McKee

We present the star formation and dust attenuation properties for a sample of 602 galaxies at redshifts $\rm{3<z<7}$, as part of the JADES survey. Our analysis is based on measurements of the $\rm{H}\alpha/\rm{H}\beta$ Balmer Decrement…

We use a large data-set of realistic synthetic observations (PaperI) to assess how observational techniques affect the measurement of physical properties of star-forming regions. In this paper (PaperII), we explore the reliability of the…

Solar and Stellar Astrophysics · Physics 2017-11-01 Christine M. Koepferl , Thomas P. Robitaille , James E. Dale