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Dust attenuation curves in external galaxies are useful to study their dust properties as well as to interpret their intrinsic spectral energy distributions. In particular the presence or absence of a UV bump at 2175 A remains an open issue…

Observations of quasars (QSOs) shining through or close to galaxies offer a way to probe the properties of the foreground matter through dust extinction and gravitational lensing. In this paper the feasibility of measuring the dust…

Astrophysics · Physics 2015-06-24 L. Ostman , A. Goobar , E. Mortsell

This paper is the third one in a series, intended to investigate how the observed kinematics of elliptical galaxies are affected by dust attenuation. In Paper I and Paper II, we investigated the effects of dust absorption; here we extend…

Astrophysics · Physics 2009-11-07 Maarten Baes , Herwig Dejonghe

In this paper we explore the relation between dust extinction and stellar light distribution in disks of spiral galaxies. Extinction influences our dynamical and photometric perception of disks, since it can distort our measurement of the…

Astrophysics · Physics 2009-11-11 B. W. Holwerda , R. A. González , P. C. van der Kruit , Ronald J. Allen

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

We derive the UV-optical stellar dust attenuation curve of galaxies at z=1.4-2.6 as a function of gas-phase metallicity. We use a sample of 218 star-forming galaxies, excluding those with very young or heavily obscured star formation, from…

The H$\alpha$ and H$\beta$ emission line luminosities measured in a single integrated spectrum are affected in non-trivial ways by point-to-point variations in dust attenuation in a galaxy. This work investigates the impact of this…

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

We present Swift/Ultraviolet Optical Telescope (UVOT) integrated light photometry of the Spitzer Infrared Nearby Galaxies Survey (SINGS) and the Key Insights on Nearby Galaxies: A Far-Infrared Survey with Herschel (KINGFISH) samples of…

Astrophysics of Galaxies · Physics 2023-08-09 Alexander Belles , Marjorie Decleir , William P. Bowman , Lea M. Z. Hagen , Caryl Gronwall , Michael H. Siegel

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

Observations show that the slope of the inner part of the H$\alpha$/[NII] rotation curves of disk galaxies is depressed by extinction: at fixed luminosity, the observed slope is in fact seen to depend on the disk inclination to the line of…

Astrophysics · Physics 2009-11-10 Carlos Valotto , Riccardo Giovanelli

As a science verification study of the newly released AKARI/FIS Faint Source Catalog ver.1, this paper discusses the different levels of dust attenuation toward stellar light and nebular emission lines within local star-forming galaxies at…

Astrophysics of Galaxies · Physics 2018-10-17 Yusei Koyama , Rhythm Shimakawa , Issei Yamamura , Tadayuki Kodama , Masao Hayashi

The composition and amount of interstellar dust within gamma-ray burst (GRB) host galaxies is of key importance when addressing selection effects in the GRB redshift distribution, and when studying the properties of their host galaxies. As…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 P. Schady , T. Dwelly , M. J. Page , T. Krühler , J. Greiner , S. R. Oates , M. De Pasquale , M. Nardini , P. W. A. Roming , A. Rossi , M. Still

To investigate the evolution of dust in a cosmological volume, we perform hydrodynamic simulations, in which the enrichment of metals and dust is treated self-consistently with star formation and stellar feedback. We consider dust evolution…

Astrophysics of Galaxies · Physics 2018-07-24 Shohei Aoyama , Kuan-Chou Hou , Hiroyuki Hirashita , Kentaro Nagamine , Ikkoh Shimizu

We use near ultraviolet and optical photometry to investigate the dust properties in the nearby starburst galaxy M82. By combining imaging from the Swift/UVOT instrument and optical data from the Sloan Digital Sky Survey, we derive the…

Astrophysics of Galaxies · Physics 2015-08-06 S. Hutton , I. Ferreras , V. Yershov

The evolution of the dust grain size distribution has been studied in recent years with great detail in cosmological hydrodynamical simulations taking into account all the channels under which dust evolves in the interstellar medium. We…

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 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…

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

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…