Results 31 to 40 of about 23,949,715 (384)
The impact of atomic data selection on nebular abundance determinations [PDF]
, 2017 Atomic data are an important source of systematic uncertainty in our determinations of nebular chemical abundances. However, we do not have good estimates of these uncertainties since it is very difficult to assess the accuracy of the atomic data ...
Leticia Juan de Dios, M'onica Rodr'iguez
semanticscholar +1 more source
Atomic Data - A Bibliography [PDF]
Symposium - International Astronomical Union, 1993 Space does not allow for a discussion of methods here. The reader is referred to the reviews or critical evaluations in the relevant sections. The current bibliography is an attempt to update the evaluations/reviews through to June 1992. Note that the Opacity Project provides an enormous amount of LS-coupling radiative data (see the Opacity Workshop ...
openaire +1 more source
Recent progress of a code system DEURACS toward deuteron nuclear data evaluation [PDF]
EPJ Web of Conferences, 2020 Toward deuteron nuclear data evaluation, we have been developing a code system dedicated for deuteron-induced reactions, called DEURACS. In this paper, we review the recent progress in the development of DEURACS.
Nakayama Shinsuke +2 more
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The AME 2020 atomic mass evaluation (II). Tables, graphs and references
Chinese Physics C, High Energy Physics & Nuclear Physics, 2021 This is the second part of the new evaluation of atomic masses, AME2020. Using least-squares adjustments to all evaluated and accepted experimental data, described in Part I, we derived tables with numerical values and graphs which supersede those given ...
M. Wang 王 +4 more
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Measurement of Gamma-Ray from Inelastic Neutron Scattering on 56Fe [PDF]
EPJ Web of Conferences, 2020 In nuclear reactors, inelastic neutron scattering is a significant energy-loss mechanism which has deep impacts on designments of nuclear reactor and radiation shielding. Iron is an important material in reactor.
Zhaohui WANG +90 more
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Symposium - International Astronomical Union, 1988 We discuss the three questions: Why do we need accurate atomic data for stellar spectroscopy? What accuracy is needed? And: How can the accuracy of oscillator strengths be assessed? In conclusion we comment on the state of the art, stress the importance of uncertainty estimates and also discern between precision and accuracy.
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Atomic and Molecular Data for Optical Stellar Spectroscopy [PDF]
, 2015 High-precision spectroscopy of large stellar samples plays a crucial role for several topical issues in astrophysics. Examples include studying the chemical structure and evolution of the Milky Way galaxy, tracing the origin of chemical elements, and ...
Asplund, M. +9 more
core +2 more sources
Uncertainty Estimates for Theoretical Atomic and Molecular Data [PDF]
, 2016 Sources of uncertainty are reviewed for calculated atomic and molecular data that are important for plasma modeling: atomic and molecular structure and cross sections for electron-atom, electron-molecule, and heavy particle collisions.
Bartschat, K. +7 more
core +2 more sources
Atomic data for astrophysics: Fe IX [PDF]
Astronomy & Astrophysics, 2014 We present the results of a new large-scale intermediate-coupling frame transformation R-matrix scattering calculation for electron collisional excitation of Fe ix. The target includes all the main configurations up to n = 5, to improve our earlier R-matrix and distorted-wave (DW) calculations for the n = 3,4 levels.
G. Zanna +3 more
semanticscholar +4 more sources
Progress on China nuclear data processing code system
EPJ Web of Conferences, 2017 China is developing the nuclear data processing code Ruler, which can be used for producing multi-group cross sections and related quantities from evaluated nuclear data in the ENDF format [1]. The Ruler includes modules for reconstructing cross sections
Liu Ping +7 more
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