Results 151 to 160 of about 10,786,884 (386)

Comparison of physical characteristics of mass and luminosity function of disk systems in barred and unbarred spiral galaxies

open access: yesمجلة بغداد للعلوم
Among the most important ways to investigate galaxies' distribution over cosmic time is the luminosity function LF in terms of baryonic disc mass ψS(Mb), magnitude  .
Al Najm M.N.   +2 more
doaj   +1 more source

Luminosity function of GRBs

open access: yes, 2013
7 pages, 6 figures, 1 ...
Lemos, L. J. Rangel   +3 more
openaire   +2 more sources

THE LUMINOSITY FUNCTION AT z ∼ 8 FROM 97 Y-BAND DROPOUTS: INFERENCES ABOUT REIONIZATION [PDF]

open access: yes, 2014
We present the largest search to date for Y-band dropout galaxies (z ∼ 8 Lyman break galaxies, LBGs) based on 350 arcmin2 of Hubble Space Telescope observations in the V, Y, J, and H bands from the Brightest of Reionizing Galaxies (BoRG) survey.
K. Schmidt   +8 more
semanticscholar   +1 more source

Exploring Microstructure–Physical Property–Corrosion Response Relationship in Intermetallic Compounds of Al‐Cu Bimetallic Interfaces

open access: yesAdvanced Engineering Materials, EarlyView.
Al‐Cu intermetallic compounds (IMCs) have a significant influence on the properties of Al‐Cu bimetallic interfaces formed in compound casting. This article provides a deeper understanding of microstructure, crystallography, thermal properties, hardness, and corrosion response of Al‐Cu IMCs with the goal of facilitating the optimization of the ...
Alireza Nazarahari   +7 more
wiley   +1 more source

White dwarf cooling sequences and cosmochronology

open access: yesEPJ Web of Conferences, 2013
The evolution of white dwarfs is a simple gravothermal process. This means that their luminosity function, i.e. the number of white dwarfs per unit bolometric magnitude and unit volume as a function of bolometric magnitude, is a monotonically increasing ...
García-Berro E., Artigas A., Isern J.
doaj   +1 more source

Radio Luminosity Functions [PDF]

open access: yesSymposium - International Astronomical Union, 1996
Luminosity functions give the space densities of source populations as functions of spectral luminosity. They constrain source physics, clustering, cosmological evolution, and contributions to the radiation background. Extragalactic radio sources span eight decades of luminosity, so dividing them into luminosity ranges effectively separates them by ...
openaire   +1 more source

Development and Preliminary In Vivo Study of 3D‐Printed Bioactive Glass Scaffolds with Trabecular Architecture

open access: yesAdvanced Engineering Materials, EarlyView.
This study reports the fabrication of trabecular bioactive glass scaffolds (composition “1d”: 46.1SiO2‐28.7CaO‐8.8MgO‐6.2P2O5‐5.7CaF2‐4.5Na2O wt%) through vat photopolymerization and the relevant results from mechanical testing and in vivo implantation procedures in rabbit femora, showing great promise for bone tissue engineering applications.
Dilshat Tulyaganov   +8 more
wiley   +1 more source

Impacts of Luminosity in the Cab at Night on the Dynamic Distance of Visual Cognition

open access: yesAdvances in Mechanical Engineering, 2014
Suddenly encountering light sources at night will reduce drivers' dynamic distance of visual cognition. In order to investigate the law of quantitative changes of the visual recognition distance under the conditions of different speeds and different ...
Weihua Zhao   +4 more
doaj   +1 more source

Luminosity Function of Faint Globular Clusters in M87

open access: yes, 2006
We present the luminosity function to very faint magnitudes for the globular clusters in M87, based on a 30 orbit \textit{Hubble Space Telescope (HST)} WFPC2 imaging program. The very deep images and corresponding improved false source rejection allow us
Baltz, Edward A.   +4 more
core   +3 more sources

Is Young's Modulus a Critical Coating Property Determining Fouling‐Release Performance of Marine Coatings?

open access: yesAdvanced Engineering Materials, EarlyView.
The release of foulers from protective marine coatings is determined by several interrelated material properties, including the strength of Young's modulus, the flexibility of chain segments, the surface free energy, and the magnitude of hydrodynamic stress.
Johann C. Schaal   +2 more
wiley   +1 more source

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