The Quest for the Nature of the Dark Matter: The Need of a New Paradigm
Astronomy, 2023 The phenomenon of the Dark matter baffles the researchers: the underlying dark particle has escaped so far the detection and its astrophysical role appears complex and entangled with that of the standard luminous particles.
Fabrizio Nesti +2 more
doaj +1 more source
Properties of galaxies with ring structures [PDF]
Astronomy & Astrophysics, 2021 Aims. We present a statistical analysis of different characteristics of ringed spiral galaxies with the aim of assessing the effects of rings on disk galaxy properties. Methods. We built a catalog of ringed galaxies from the Sloan Digital Sky Survey Data Release 14 (SDSS-DR14).
Georgina Coldwell +5 more
openaire +5 more sources
The Principle of Maximum Entropy and the Distribution of Mass in Galaxies
Universe, 2022 We do not have a final answer to the question of why galaxies choose a particular internal mass distribution. Here we examine whether the distribution is set by thermodynamic equilibrium (TE).
Jorge Sánchez Almeida
doaj +1 more source
Structures in Galaxy Clusters [PDF]
The Astrophysical Journal, 1994 (16 pages in LATEX, 4 tables in LATEX are at the end of the file, the figures not included are available upon request), REF SISSA 158/93 ...
Marisa Girardi +6 more
openaire +5 more sources
Quantitative Morphology of High-Redshift Galaxies Using GALEX Ultraviolet Images of Nearby Galaxies [PDF]
Journal of Astronomy and Space Sciences, 2017 We present simulations of the optical-band images of high-redshift galaxies utilizing 845 near-ultraviolet (NUV) images of nearby galaxies obtained through the Galaxy Evolution Explorer (GALEX). We compute the concentration (C), asymmetry (A), Gini (G),
Bum-Suk Yeom +6 more
doaj +1 more source
Orientation of galaxies in structures [PDF]
Astrophysics, 2013 Preliminary version of the paper from Astrophysics 56, p.322 send to Astrofizika ...
Piotr Flin +4 more
openaire +3 more sources
Galaxy Structure in the Ultraviolet: The Dependence of Morphological Parameters on Rest-frame Wavelength [PDF]
Astrophysical Journal, 2018 Evolutionary studies that compare galaxy structure as a function of redshift are complicated by the fact that any particular galaxy’s appearance depends in part on the rest-frame wavelength of the observation.
V. Mager +7 more
semanticscholar +1 more source
Galaxy structure with strong gravitational lensing: decomposing the internal mass distribution of massive elliptical galaxies [PDF]
Monthly notices of the Royal Astronomical Society, 2019 We investigate how strong gravitational lensing can test contemporary models of massive elliptical (ME) galaxy formation, by combining a traditional decomposition of their visible stellar distribution with a lensing analysis of their mass distribution.
J. Nightingale +6 more
semanticscholar +1 more source
JWST Reveals a Population of Ultrared, Flattened Galaxies at 2 ≲ z ≲ 6 Previously Missed by HST
The Astrophysical Journal Letters, 2023 With just a month of data, JWST is already transforming our view of the universe, revealing and resolving starlight in unprecedented populations of galaxies.
Erica J. Nelson +25 more
doaj +1 more source
STRUCTURAL PARAMETERS OF GALAXIES IN CANDELS [PDF]
The Astrophysical Journal Supplement Series, 2012 public data release of structural parameters from CANDELS WFC3 data: http://www.mpia-hd.mpg.de/homes/vdwel/candels ...
van der Wel, Arjen +21 more
openaire +6 more sources