Results 31 to 40 of about 4,977,656 (389)

CIGALE: a python Code Investigating GALaxy Emission [PDF]

open access: yesAstronomy & Astrophysics, 2018
Context. Measuring how the physical properties of galaxies change across cosmic times is essential to understand galaxy formation and evolution. With the advent of numerous ground-based and space-borne instruments launched over the past few decades we ...
M. Boquien   +7 more
semanticscholar   +1 more source

Spectrum of Singly Charged Uranium (U II) : Theoretical Interpretation of Energy Levels, Partition Function and Classified Ultraviolet Lines

open access: yesAtoms, 2017
In an attempt to improve U II analysis, the lowest configurations of both parities have been interpreted by means of the Racah-Slater parametric method, using Cowan codes.
Ali Meftah   +3 more
doaj   +1 more source

EGRET Observations of the Extragalactic Gamma Ray Emission [PDF]

open access: yes, 1997
The all-sky survey in high-energy gamma rays (E$>$30 MeV) carried out by the Energetic Gamma Ray Experiment Telescope (EGRET) aboard the Compton Gamma-Ray Observatory provides a unique opportunity to examine in detail the diffuse gamma-ray emission.
A. Mucke   +40 more
core   +3 more sources

THE SPECTRUM OF ISOTROPIC DIFFUSE GAMMA-RAY EMISSION BETWEEN 100 MeV AND 820 GeV [PDF]

open access: yesAstrophysical Journal, 2014
The γ-ray sky can be decomposed into individually detected sources, diffuse emission attributed to the interactions of Galactic cosmic rays with gas and radiation fields, and a residual all-sky emission component commonly called the isotropic diffuse γ ...
T. A. C. M. Ackermann   +143 more
semanticscholar   +1 more source

THE EMISSION SPECTRUM OF CURIUM [PDF]

open access: yesAtomic Data and Nuclear Data Tables, 1976
Abstract The curium emission spectrum was observed from 2400 to 11 200 A using electrodeless lamps as sources. Accurately measured wavelengths of 2034 of the strongest 244 Cm lines are reported. The wavelengths, wavenumbers, and relative intensities are given.
Earl F. Worden   +3 more
openaire   +3 more sources

Nitride superluminescent diodes with broadened emission spectrum fabricated using laterally patterned substrate.

open access: yesOptics Express, 2016
We demonstrate InGaN/GaN superluminescent diodes with broadened emission spectra fabricated on surface-shaped bulk GaN (0001) substrates. The patterning changes the local vicinal angle linearly along the device waveguide, which results in an indium ...
A. Kafar   +8 more
semanticscholar   +1 more source

InPBi Quantum Dots for Super-Luminescence Diodes

open access: yesNanomaterials, 2018
InPBi thin film has shown ultra-broad room temperature photoluminescence, which is promising for applications in super-luminescent diodes (SLDs) but met problems with low light emission efficiency.
Liyao Zhang   +4 more
doaj   +1 more source

First evidence of diffuse ultra-steep-spectrum radio emission surrounding the cool core of a cluster [PDF]

open access: yes, 2018
Diffuse synchrotron radio emission from cosmic-ray electrons is observed at the center of a number of galaxy clusters. These sources can be classified either as giant radio halos, which occur in merging clusters, or as mini halos, which are found only in
A Bonafede   +60 more
core   +6 more sources

An Empirical Ultraviolet Template for Iron Emission in Quasars as Derived from I Zw 1 [PDF]

open access: yes, 2001
We present an empirical template spectrum suitable for fitting/subtracting and studying the FeII and FeIII line emission in the restframe UV spectra of active galatic nuclei (AGNs), the first empirical UV iron template to cover the full 1250 - 3090 A ...
B. J. Wilkes   +30 more
core   +2 more sources

Conditions for Pulse Gas-Discharge Synthesis of Thin Films with High Ion Conductivity

open access: yesЖурнал нано- та електронної фізики
The results of experimental study of the characteristics of high-voltage nanosecond discharge between electrodes of polycrystalline argyrodite (Ag8GeS6) in air at different pressures (p = 7-101 kPa) and different frequencies of voltage pulses are ...
O.K. Shuaibov   +6 more
doaj   +1 more source

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