Results 1 to 10 of about 1,313,328 (252)

Unitary correlation in nuclear reaction theory [PDF]

open access: yesPhys.Rev.C82:051601,2010, 2010
We prove that the amplitudes for the (d,p), (d,pn) and (e,e'p) reactions determining the asymptotic behavior of the exact scattering wave functions in the corresponding channels are invariant under unitary correlation operators while the spectroscopic factors are not.
Kadyrov, A. S., Mukhamedzhanov, A. M.
arxiv   +3 more sources

Velocity Curve Analysis of the Spectroscopic Binary Stars V373 Cas, V2388 Oph, V401 Cyg, GM Dra, V523 Cas, AB And, and HD 141929 by Artificial Neural Networks [PDF]

open access: yesPASA, Volume 26, Issue 2, pp. 121-127 (2009), 2009
We used an Artificial Neural Network (ANN) to derive the orbital parameters of spectroscopic binary stars. Using measured radial velocity data of seven double-lined spectroscopic binary systems V373 Cas, V2388 Oph, V401 Cyg, GM Dra, V523 Cas, AB And, and HD 141929, we found corresponding orbital and spectroscopic elements.
Bazarghan   +15 more
arxiv   +3 more sources

A Spectroscopic Census of X-ray Systems in the COSMOS Field [PDF]

open access: yes, 2019
We investigate spectroscopic properties of galaxy systems identified based on deep X-ray observations in the COSMOS field. The COSMOS X-ray system catalog we use George et al. (2011) includes 180 X-ray systems to a limiting flux of $1.0 \times 10^{-15}$ erg cm$^{-2}$ s$^{-1}$, an order of magnitude deeper than future e-ROSITA survey.
Geller, Margaret J.   +2 more
arxiv   +3 more sources

Spectroscopic factors for bound s-wave states derived from neutron scattering lengths [PDF]

open access: yesPhys.Rev.C55:1591-1593,1997, 1996
A simple and model-independent method is described to derive neutron single-particle spectroscopic factors of bound s-wave states in $^{A+1}Z = ^{A}Z \otimes n$ nuclei from neutron scattering lengths. Spectroscopic factors for the nuclei ^{13}C, ^{14}C, ^{16}N, ^{17}O, ^{19}O, ^{23}Ne, ^{37}Ar, and ^{41}Ar are compared to results derived from transfer ...
A. J. Howard   +41 more
arxiv   +3 more sources

Overview of the Instrumentation for the Dark Energy Spectroscopic Instrument [PDF]

open access: yesAstronomical Journal, 2022
The Dark Energy Spectroscopic Instrument (DESI) embarked on an ambitious 5 yr survey in 2021 May to explore the nature of dark energy with spectroscopic measurements of 40 million galaxies and quasars. DESI will determine precise redshifts and employ the
B. Abareshi   +266 more
semanticscholar   +1 more source

High-contrast spectroscopic photoacoustic characterization of thermal tissue ablation in the visible spectrum [PDF]

open access: yesUltrasonography, 2023
Purpose High-contrast tissue characterization of thermal ablation has been desired to evaluate therapeutic outcomes accurately. This paper presents a photoacoustic (PA) characterization of thermal tissue ablation in the visible spectrum, in which higher ...
Hyunjae Song, Tai-Kyong Song, Jeeun Kang
doaj   +1 more source

Spectroscopic confirmation of four metal-poor galaxies at z = 10.3–13.2 [PDF]

open access: yesNature Astronomy, 2022
As part of the JWST Advanced Deep Extragalactic Survey (JADES), NIRSpec has spectroscopically confirmed four young and metal-poor galaxies at redshift 10.3–13.2, from an early epoch of galaxy formation.
E. Curtis-Lake   +58 more
semanticscholar   +1 more source

The Spectroscopic Data Processing Pipeline for the Dark Energy Spectroscopic Instrument [PDF]

open access: yesAstronomical Journal, 2022
We describe the spectroscopic data processing pipeline of the Dark Energy Spectroscopic Instrument (DESI), which is conducting a redshift survey of about 40 million galaxies and quasars using a purpose-built instrument on the 4 m Mayall Telescope at Kitt
J. Guy   +56 more
semanticscholar   +1 more source

Dielectric relaxation and conduction mechanism of NaMgPO4 compound

open access: yesJournal of Advanced Dielectrics, 2022
The polycrystalline NaMgPO4 ceramic, synthesized via a high-temperature solid-state reaction route, has been characterized by using different experimental procedures.
L. Miladi   +3 more
doaj   +1 more source

The detection of Escherichia coli biofilm in green oak with spectroscopic imaging techniques based on confocal laser scanning microscope [PDF]

open access: yesE3S Web of Conferences, 2020
Microbial recontamination in post- harvest products, specifically for fresh cut fruits and vegetables, often raises concern of consumer health safety since pathogen bacteria readily forms sticky biofilm for their protection that often render ineffective ...
Klinsuk Jintaphorn   +5 more
doaj   +1 more source

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