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We present a nonparametric morphology analysis of the stellar continuum and nebular emission lines for a sample of local galaxies. We explore the dependence of the various morphological parameters on wavelength and morphological type. Our…

Astrophysics of Galaxies · Physics 2023-05-10 Angelos Nersesian , Stefano Zibetti , Francesco D'Eugenio , Maarten Baes

Context: Galaxy morphology is a fundamental property to describe galaxy evolution. However, the observed morphology of a particular galaxy may depend on the observed wavelength. Aims: Our aim is to investigate the wavelength dependence and…

We examine ultraviolet halos around a sample of highly inclined galaxies within 25 Mpc to measure their morphology and luminosity. Despite contamination from galactic light scattered into the wings of the point-spread function, we find that…

Astrophysics of Galaxies · Physics 2016-12-14 Edmund Hodges-Kluck , Julian Cafmeyer , Joel Bregman

Motivated by the irregular and little-understood morphologies of z ~ 2 - 3 galaxies, we use non-parametric coefficents to quantify the morphologies of 216 galaxies which have been spectroscopically confirmed to lie at redshifts z = 1.8 -…

We have undertaken an imaging survey of 34 nearby galaxies in far-ultraviolet (FUV, ~1500A) and optical (UBVRI) passbands to characterize galaxy morphology as a function of wavelength. This sample, which includes a range of classical Hubble…

We used ultraviolet (200 nm) images of the local spiral galaxies M33, M51, M81, M100, M101 to compute morphological parameters of galactic disks at this wavelength : half-light radius $r_{hl}$, surface brightness distributions, asymmetries…

Astrophysics · Physics 2009-11-06 Denis Burgarella , Veronique Buat , Jose Donas , Bruno Milliard , Sandra Chapelon

We give an overview of the factors shaping the ultraviolet (UV)/optical - far-infrared (FIR)/submillimeter (submm) spectral energy distributions (SEDs) of normal (non-starburst) galaxies. Particular emphasis is placed on the influen ce of…

Astrophysics · Physics 2009-11-10 Cristina C. Popescu , Richard J. Tuffs

Morphological classification conveys abundant information on the formation, evolution, and environment of galaxies. In this work, we refine the two-step galaxy morphological classification framework ({\tt\string USmorph}), which employs a…

Astrophysics of Galaxies · Physics 2024-04-25 Jie Song , GuanWen Fang , Shuo Ba , Zesen Lin , Yizhou Gu , Chichun Zhou , Tao Wang , Cai-Na Hao , Guilin Liu , Hongxin Zhang , Yao Yao , Xu Kong

To study the distribution of star formation and dust emission within nearby galaxies, we measured five morphological parameters in the 3.6 and 24 micron wave bands for 65 galaxies in the Spitzer Infrared Nearby Galaxies Survey (SINGS) and 8…

We present deep high resolution (0.03", 200pc) ALMA Band 7 observations covering the dust continuum and [CII] $\lambda157.7\mu$m emission in four $z\sim4.4-4.8$ sub-millimeter galaxies (SMGs) selected from the ALESS and AS2UDS surveys. The…

We study the morphological properties of mid-infrared selected galaxies at $1.0<z<1.7$ in the SMACS J0723.3-7327 cluster field, to investigate the mechanisms of galaxy mass assembly and structural formation at cosmic noon. We develop a new…

Astrophysics of Galaxies · Physics 2023-08-14 Zhaoran Liu , Takahiro Morishita , Tadayuki Kodama

In this paper, we present spectrophotometric models for galaxies of different morphological type whose spectral energy distributions (SEDs) take into account the effect of dust in absorbing UV-optical light and re-emitting it in the…

Astrophysics · Physics 2009-11-11 Lorenzo Piovan , Rosaria Tantalo , Cesare Chiosi

The detailed distribution of dust in the disks of spiral galaxies is important to understanding the radiative transfer within disks, and to measuring overall dust masses if significant quantities of dust are either very opaque or very cold.…

Astrophysics · Physics 2009-10-31 Donovan L. Domingue , William C. Keel , Stuart D. Ryder , Raymond E. White

We study the optical morphology of galaxies in a large-scale hydrodynamic cosmological simulation, the EAGLE simulation. Galaxy morphologies were characterized using non-parametric statistics (Gini, $M_{20}$, Concentration and Asymmetry)…

Astrophysics of Galaxies · Physics 2020-01-08 Lucas A. Bignone , Susana E. Pedrosa , James W. Trayford , Patricia B. Tissera , Leonardo J. Pellizza

The purpose of this work is the characterization of the radial distribution of dust, stars, gas, and star-formation rate (SFR) in a sub-sample of 18 face-on spiral galaxies extracted from the DustPedia sample. This study is performed by…

The ultraviolet (UV) to sub-millimetre (submm) spectral energy distribution of galaxies can be roughly divided into two sections: the stellar emission (attenuated by dust) at UV to near-infrared wavelengths and dust emission at longer…

Astrophysics of Galaxies · Physics 2021-11-10 Wouter Dobbels , Maarten Baes

We present results from the first robust investigation of galaxy morphology as a function of environment at z>1.5. Our study is motivated by the fact that star-forming galaxies contained within a protocluster at z=2.3 in the HS1700+64 field…

Extended UltraViolet (xuv) disks have been found in a substantial fraction of late-type --S0, spiral and irregular-- galaxies. Similarly, most late-type spirals have an extended gas disk, observable in the 21cm radio line (HI). The…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 B. W. Holwerda , N. Pirzkal , J. S. Heiner

High-angular resolution observations at sub-millimeter/millimeter wavelengths of disks surrounding young stars have shown that their morphology is made of azimuthally-symmetric or point-symmetric substructures, in some cases with spiral…

Earth and Planetary Astrophysics · Physics 2021-10-27 Diana Blanco , Luca Ricci , Mario Flock , Neal Turner

Circumgalactic dust grains trace the circulation of mass and metals between star-forming regions and gaseous galactic halos, giving insight into feedback and tidal stripping processes. We perform a search for ultraviolet (UV) reflection…

Astrophysics of Galaxies · Physics 2024-08-23 Erin Boettcher , Edmund Hodges-Kluck
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