Results 121 to 130 of about 657,244 (303)

GAMA/H-ATLAS: the local dust mass function and cosmic density as a function of galaxy type – a benchmark for models of galaxy evolution [PDF]

Monthly notices of the Royal Astronomical Society, 2017
We present the dust mass function (DMF) of 15 750 galaxies with redshift $z$ < 0.1, drawn from the overlapping area of the GAMA and H-ATLAS surveys.
R. Beeston, A. Wright, A. Wright, S. Maddox, S. Maddox, H. Gomez, L. Dunne, L. Dunne, S. Driver, A. Robotham, C. Clark, K. Vinsen, T. Takeuchi, G. Popping, G. Popping, N. Bourne, M. Bremer, S. Phillipps, A. Moffett, M. Baes, J. Bland-Hawthorn, S. Brough, P. D. Vis, S. Eales, B. Holwerda, J. Loveday, J. Liske, Matthew W. L. Smith, Daniel J B Smith, E. Valiante, C. Vlahakis, Lingyu Wang, Lingyu Wang   +32 more
semanticscholar   +1 more source

Compression‐Expansion: Miniaturization, Modularity, and Logistics Beyond Earth

American Anthropologist, EarlyView.
ABSTRACT If the Cold War space race culminated in a return to Earth, at present we are experiencing a renewed interest in space. Drawing on fieldwork among people working in the space sector in Sweden, this article focuses on some of the imaginaries underpinning this resurgence and the contemporary commercialization of space. Specifically, I hone in on
Chakad Ojani
wiley   +1 more source

“Super-deblended” Dust Emission in Galaxies. I. The GOODS-North Catalog and the Cosmic Star Formation Rate Density out to Redshift 6 [PDF]

, 2017
We present a new technique to measure multi-wavelength “super-deblended” photometry from highly confused images, which we apply to Herschel and ground-based far-infrared (FIR) and (sub-)millimeter (mm) data in the northern field of the Great ...
Daizhong Liu, E. Daddi, M. Dickinson, F. Owen, M. Pannella, M. Sargent, M. Béthermin, G. Magdis, Yu Gao, X. Shu, Tao Wang, S. Jin, H. Inami   +12 more
semanticscholar   +1 more source

Weichselian–Holocene glacial history of the Sjuøyane archipelago, northern Svalbard

Boreas, EarlyView.
To reconstruct the glacial history of Sjuøyane, we describe coastal sedimentary sections in Quaternary sediments and constrain their chronology by radiocarbon and optically stimulated luminescence ages. The sedimentary sections largely consist of shallow (glacio‐)marine and/or littoral sediments deposited during high relative sea levels.
Anders Schomacker, Helena Alexanderson, Wesley R. Farnsworth, Mark F. A. Furze, Sofia E. Kjellman, Nina Kirchner, Elias Strandell Erstorp, Riko Noormets, Vincent Jomelli, Ólafur Ingólfsson   +9 more
wiley   +1 more source

Global amount of dust in the universe [PDF]

arXiv, 2011
It is pointed out that the total amount of dust in the Universe that is produced in stellar evolution in the entire cosmic time is consistent with the observed amount, if we add to the dust amount inferred for galactic discs the amount recently uncovered in galactic haloes and the surrounding of galaxies in reddening of the quasar light passing through
arxiv  

Dust evolution with active galactic nucleus feedback in elliptical galaxies [PDF]

, 2017
We have recently suggested that dust growth in the cold gas phase dominates the dust abundance in elliptical galaxies while dust is efficiently destroyed in the hot X-ray emitting plasma (hot gas). In order to understand the dust evolution in elliptical galaxies, we construct a simple model that includes dust growth in the cold gas and dust destruction
arxiv   +1 more source

Cosmic dust [PDF]

Dust is a ubiquitous component of our galaxy and the solar system. The collection and analysis of extraterrestrial dust particles is important to exobiology because it provides information about the sources of biogenically significant elements and ...
Brownlee, Donald E., Sandford, Scott A.
core   +1 more source

A Parameter Study of the Dust and Gas Temperature in a Field of Young Stars

, 2007
We model the thermal effect of young stars on their surrounding environment in order to understand clustered star formation. We take radiative heating of dust, dust-gas collisional heating, cosmic-ray heating, and molecular cooling into account.
Andrea Urban, Doty, Flower, Goldsmith, Hildebrand, Klessen, Krumholz, Lee, Martel, Mueller, Neal J. Evans, Nenkova, Ossenkopf, Press, Shirley, Steven D. Doty, van der Tak, van der Tak, Young, Young, Young   +20 more
core   +1 more source

COSMIC DUST AND COSMOLOGY

Publications of The Korean Astronomical Society, 2015
Cosmology considers the Hubble redshift of galaxy light by the Doppler effect as proof the Universe has been expanding since the Big Bang. However, cosmic dust that permeates the Universe also redshifts galaxy light that if not corrected over-predicts the velocities of all astronomical measurements inferred by the Doppler effect.
openaire   +3 more sources

Palaeoenvironmental changes recorded at the Velika Vrbica loess‐palaeosol sequence, Wallachian Basin, during MIS 3–MIS 1

Boreas, EarlyView.
This study presents a detailed investigation of the Velika Vrbica loess‐palaeosol sequence, situated in the Wallachian Basin of northeastern Serbia, with the aim to reconstruct palaeoenvironmental changes spanning Marine Isotope Stages (MIS) 3 to 1. Using optically stimulated luminescence (OSL) dating, low field magnetic susceptibility (χlf), and mass ...
Zoran M. Perić, Cathal S. Ryan, Warren Thompson, Milica G. Radaković, Petar Krsmanović, Helena Alexanderson, Slobodan B. Marković   +6 more
wiley   +1 more source