Results 71 to 80 of about 172,368 (310)
The Astrophysical JournalWe homogeneously investigate the morphological properties of 169 galaxies at z ∼ 10–16 with deep JWST NIRCam images employing our established techniques of GALFIT modeling and uncertainty evaluation (systematics+statistics).
Yoshiaki Ono +7 more
doaj +1 more source
The time-evolution of bias [PDF]
, 1998 We study the evolution of the bias factor b and the mass-galaxy correlation coefficient r in a simple analytic model for galaxy formation and the gravitational growth of clustering. The model shows that b and r can be strongly time-dependent, but tend to
Babul A. +5 more
core +2 more sources
Solid Harmonic Wavelet Bispectrum for Image Analysis
Advanced Science, EarlyView.The Solid Harmonic Wavelet Bispectrum (SHWB), a rotation‐ and translation‐invariant descriptor that captures higher‐order (phase) correlations in signals, is introduced. Combining wavelet scattering, bispectral analysis, and group theory, SHWB achieves interpretable, data‐efficient representations and demonstrates competitive performance across texture,
Alex Brown +3 more
wiley +1 more source
Stochastic 2-D Models of Galaxy Disk Evolution. The Galaxy M33
Open Astronomy, 2014 We have developed a fast numerical 2-D model of galaxy disk evolution (resolved along the galaxy radius and azimuth) by adopting a scheme of parameterized stochastic self-propagating star formation.
Mineikis T., Vansevičius V.
doaj +1 more source
Advanced Science, EarlyView.The 3K‐AP system forms infinite supramolecular fibrils that undergo controlled degradation into shorter fragments upon enzymatic hydrolysis. Multitechnique imaging reveals a stepwise bacteriolytic mechanism involving bacterial entrapment, disassembly into lethal constructs, and associated extracellular vesicle release, highlighting the dynamic ...
Sohini Chakraborty +21 more
wiley +1 more source
The Astronomical JournalGalaxy pairs, as key probes for studying galaxy formation and evolution, provide a unique window for observing galaxy interactions, including the associated exchange of material and related galaxy formation activities.
Yating Li +4 more
doaj +1 more source
The History of Galaxy Mergers in IllustrisTNG
UniverseThe process of galaxy evolution over cosmic time is not yet fully understood, since there is a debate on the impact of galaxy collisions on the star formation and metallicity.
Bendeguz Koncz +4 more
doaj +1 more source
The formation and cosmic evolution of dust in the early Universe: I. Dust sources
The Astronomy and Astrophysics ReviewDust-obscured star formation has dominated the cosmic history of star formation, since z≃4\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs ...
R. Schneider, R. Maiolino
semanticscholar +1 more source
A Simple Technique for Predicting High-Redshift Galaxy Evolution
, 2015 We show that the ratio of galaxies' specific star formation rates (SSFRs) to their host halos' specific mass accretion rates (SMARs) strongly constrains how the galaxies' stellar masses, specific star formation rates, and host halo masses evolve over ...
Behroozi, Peter S., Silk, Joseph
core +2 more sources
The Romulus Cosmological Simulations: A Physical Approach to the Formation, Dynamics and Accretion Models of SMBHs [PDF]
, 2017 We present a novel implementation of supermassive black hole (SMBH) formation, dynamics, and accretion in the massively parallel tree+SPH code, ChaNGa. This approach improves the modeling of SMBHs in fully cosmological simulations, allowing for a more de-
Anderson, Lauren +7 more
core +3 more sources