Results 31 to 40 of about 12,590,287 (391)
VIS3COS: II. Nature and nurture in galaxy structure and morphology [PDF]
, 2019 We study the impact of local density and stellar mass on the structure and morphology of approximately 500 quiescent and star-forming galaxies from the VIMOS Spectroscopic Survey of a Superstructure in COSMOS ((VISCOS)-C-3).
A. Paulino-Afonso +9 more
semanticscholar +1 more source
VEGAS: A VST Early-type Galaxy Survey. III. Mapping the Galaxy Structure, Interactions, and Intragroup Light in the NGC 5018 Group [PDF]
Astrophysical Journal, 2018 Most of the galaxies in the universe today are in groups, which are key to understanding their evolution. In this work we present a new deep mosaic of 1.2 × 1.0 square degrees of the group of galaxies centered on NGC 5018, acquired at the ESO VLT Survey ...
M. Spavone +10 more
semanticscholar +1 more source
The Astrophysical Journal, 2023 A key question in galaxy evolution has been the importance of the apparent “clumpiness” of high-redshift galaxies. Until now, this property has been primarily investigated in rest-frame UV, limiting our understanding of their relevance.
Boris S. Kalita +6 more
doaj +1 more source
The Astrophysical Journal, 2023 We examine the wavelength dependence of radial light profiles based on Sérsic index n measurements of 1067 galaxies with M _* ≥ 10 ^9.5 M _⊙ and in the redshift range 0.5 < z < 3. The sample and rest-frame optical light profiles are drawn from the Cosmic
Marco Martorano +12 more
doaj +1 more source
The photometric structure of the inner Galaxy [PDF]
Monthly Notices of the Royal Astronomical Society, 1997 The light distribution in the inner few kiloparsecs of the Milky Way is recovered non-parametrically from a dust-corrected near-infrared COBE/DIRBE surface brightness map of the inner Galaxy. The best fits to the photometry are obtained when the Sun is assumed to lie $\sim14\pm4\pc$ below the plane.
Binney, James +2 more
openaire +6 more sources
Galaxy and Mass Assembly (GAMA): variation in galaxy structure across the green valley [PDF]
, 2018 Using a sample of 472 local Universe ...
L. Kelvin +28 more
semanticscholar +1 more source
Warm Dark Matter Galaxies with Central Supermassive Black Holes
Universe, 2022 We generalize the Thomas–Fermi approach to galaxy structure to include central supermassive black holes and find, self-consistently and non-linearly, the gravitational potential of the galaxy plus the central black hole (BH) system.
Hector J. de Vega, Norma G. Sanchez
doaj +1 more source
Galaxy structure from multiple tracers - II. M87 from parsec to megaparsec scales [PDF]
, 2016 Following a number of discrepant studies of M87’s mass prole, we carry out an extensive dynamical analysis of multiple tracer populations in this giant elliptical galaxy in order to constrain its mass over a large radius range.
L. Oldham, M. Auger
semanticscholar +1 more source
Galaxy Phase-Space Density Data Preclude That Bose–Einstein Condensate Be the Total Dark Matter
Universe, 2022 Ultralight scalars with a typical mass of the order m∼10−22 eV and light scalars forming a Bose–Einstein condensate (BEC) exhibit a Jeans length in the kpc scale and were therefore proposed as dark matter (DM) candidates.
Héctor J. de Vega, Norma G. Sanchez
doaj +1 more source
Spirality: A Novel Way to Measure Spiral Arm Pitch Angle
Galaxies, 2022 We present the MATLAB code Spirality, a novel method for measuring spiral arm pitch angles by fitting galaxy images to spiral templates of known pitch. Computation time is typically on the order of 2 min per galaxy, assuming 8 GB of working memory.
Deanna Shields +9 more
doaj +1 more source