Results 101 to 110 of about 657,244 (303)
Obscuration by Diffuse Cosmic Dust [PDF]
Publications of the Astronomical Society of Australia, 1998 AbstractIf the background universe is observed through a significant amount of diffusely distributed foreground dust, then studies at optical wavelengths may be severely biased. Previous studies investigating the effects of foreground dust on background sources assumed dust to be ‘compactly’ distributed, i.e.
openaire +4 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
Journal of Quaternary Science, EarlyView.Abstract The high mountains of Taiwan provide a unique location for Quaternary palaeoclimate research in East Asia and the north‐western Pacific. This study applies geomorphological field mapping and rock surface exposure dating with paired (10Be/26Al) in situ‐produced terrestrial cosmogenic nuclides to identify and date glacial landforms and boulders ...
Robert Hebenstreit +2 more
wiley +1 more source
Corrected SFD: A More Accurate Galactic Dust Map with Minimal Extragalactic Contamination
The Astrophysical Journal, 2023 The widely used Milky Way dust-reddening map, the Schlegel–Finkbeiner–Davis (SFD) map, was found to contain extragalactic large-scale structure (LSS) imprints.
Yi-Kuan Chiang
doaj +1 more source
The dust content of galaxies from z = 0 to z = 9 [PDF]
, 2016 We study the dust content of galaxies from $z=0$ to $z=9$ in semi-analytic models of galaxy formation that include new recipes to track the production and destruction of dust. We include condensation of dust in stellar ejecta, the growth of dust in the interstellar medium (ISM), the destruction of dust by supernovae and in the hot halo, and dusty winds
arxiv +1 more source
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
Cool Dark Cosmic Dust as a Reservoir of Absorbed Energy [PDF]
arXiv, 2005 The conception of cool dark cosmic dust has been proposed. The process of accumulation of absorbed energy by dust of such kind is considered. The conception of accumulation horizon is introduced. The possible role of cool dark cosmic dust is discussed for solution of the problem of dark matter. The other aspects of the problem are also considered.
arxiv
Evolution in the Dust Lane Fraction of Edge-on L* Spiral Galaxies since z=0.8 [PDF]
, 2012 The presence of a well-defined and narrow dust lane in an edge-on spiral galaxy is the observational signature of a thin and dense molecular disk, in which gravitational collapse has overcome turbulence.
Allen, R. J. +7 more
core +3 more sources
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