Results 81 to 90 of about 486,911 (258)
Dating the Middle Palaeolithic of Fumane Cave by the combined ESR/U‐series method
Journal of Quaternary Science, EarlyView.ABSTRACT Fumane Cave, located in Northern Italy, is a major prehistoric site for understanding late Neandertal and early modern human behaviours. The cave contains a 12‐m‐thick stratigraphic sequence of Middle and Upper Palaeolithic layers, which have yielded a number of flint artefacts and faunal remains.
Christophe Falguères +4 more
wiley +1 more source
Electromagnetic scattering by a polydispersion of small charged cosmic dust particles
Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2011 Some recent studies on extended red emissions suggest the presence of very small dust particles in the Universe. The sizes of these particles vary from 1 nm to some tens of nanometers, thus situating them deeply in the Rayleigh region if computations are
M. Kocifaj, J. Klavcka, G. Videen
doaj +1 more source
The Astrophysical Journal, 2023 About 12 billion years ago, the Universe was first experiencing light again after the dark ages, and galaxies filled the environment with stars, metals, and dust. How efficient was this process? How fast did these primordial galaxies form stars and dust?
Meriem Behiri +14 more
doaj +1 more source
The cosmic evolution of dust-corrected metallicity in the neutral gas [PDF]
, 2017 Interpreting abundances of Damped Ly-$\alpha$ Absorbers (DLAs) from absorption-line spectroscopy has typically been a challenge because of the presence of dust.
A. D. Cia +3 more
semanticscholar +1 more source
Journal of Quaternary Science, EarlyView.ABSTRACT Chronologic and geomorphic evidence of past glaciations is largely recorded in areas at relatively low elevation and/or landscapes defined by high glacial erosion. As a result, data from areas that did not experience significant glacial erosion and the highest elevation locations are lacking from reconstructions of past ice masses.
Samuel E. Kelley +5 more
wiley +1 more source
Cosmic Sands: The Origin of Dusty, Star-forming Galaxies in the Epoch of Reionization
The Astrophysical Journal, 2023 We present the Cosmic Sands suite of cosmological zoom-in simulations based on the simba galaxy formation model in order to study the buildup of the first massive and dusty galaxies in the early universe.
Sidney Lower +3 more
doaj +1 more source
Cosmic dust in the earth's atmosphere
Chemical Society Reviews, 2012 AbstractReview: 100 refs.
openaire +5 more sources
A Model Connecting Galaxy Masses, Star Formation Rates, and Dust Temperatures across Cosmic Time [PDF]
, 2018 We investigate the evolution of dust content in galaxies from redshifts z = 0 to z = 9.5. Using empirically motivated prescriptions, we model galactic-scale properties—including halo mass, stellar mass, star formation rate, gas mass, and metallicity—to ...
N. Imara +4 more
semanticscholar +1 more source
Risk, Hazards &Crisis in Public Policy, EarlyView.Abstract Near‐earth orbits are becoming congested because of a rapid growth in the number of satellites and space debris, which presents a real threat to the sustainable use of space and the safety of the Earth. Despite space scientists and public policymakers having been actively seeking solutions for decades, solving the problem has been put off ...
Anna Ya Ni +2 more
wiley +1 more source
Electrostatic Dust Analyzer for Dust Transport Measurements on the Lunar Surface
The Planetary Science JournalLunar dust charging and transport is a more than five-decade-old problem. A high-fidelity and flight-qualified Electrostatic Dust Analyzer (EDA) has been developed to measure the charge, velocity, mass (size), and flux of electrostatically lofted dust ...
X. Wang +14 more
doaj +1 more source