Results 51 to 60 of about 307 (107)
New nuclear structure calculations and the astrophysical r-process [PDF]
, 1987 Recent developments in nuclear-structure calculations used to calculate the nuclear properties of neutron-rich heavy elements can have a dramatic effect on astrophysical r-process calculations. In particular, in the context of the macroscopic-microscopic
Moeller, P. +3 more
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Low energy nuclear isomers [PDF]
, 2017 This paper aims to compile and to structure information about the low energy nuclear isomerism and its use in different areas of convergent sciences. A phenomenon of isomerism investigated in nuclear physics is of a great interest for different areas ...
Novikov, Yu. N. +3 more
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THE HELIUM CONTENT OF THE GALAXY
, 1965 It is usually assumed in modern theories of nucleosynthesis that the initial composition of the galaxy was pure hydrogen. The large solar and stellar content of helium has appeared to present a difficulty for such an assumption.
J. W. Truran +2 more
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Progress in the Early Solar System Chronology: A Sketch of an Ever-Changing Landscape [PDF]
, 2011 The years since the Workshop on the Chronology of Meteorites and the Early Solar System, are marked with ongoing progress in cosmochronology. Rapid improvements in techniques, discovery of new meteorites unlike any previously known, and findings that ...
Wadhwa, M. +6 more
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New Isotopic Clues to Solar System Formation
, 2011 [[abstract]]The presence of two new extinct nuclides 26Al and 107Pd with half-lives ∼106 years in the early solar system implies that there were nucleosynthetic activities involving a great many elements almost at the instant of solar system formation ...
LEE T
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185W (n,y) cross-sections constrained with statistical nuclear properties of 186W nucleus [PDF]
, 2019 M.Sc. (Physics)Abstract: At some locations along the s-process reaction path, there exists nuclei with _-decay rates that competes with the neutron capture rates.
Mbabane, Mvuyisi
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Understanding the cool DA white dwarf pulsator G29-38 [PDF]
, 1998 The white dwarfs are promising laboratories for the study of cosmochronology and stellar evolution. Through observations of the pulsating white dwarfs, we can measure their internal structures and compositions, critical to understanding post-main ...
Liebert, James +41 more
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Pa-239 may influence astrophysics study
The estimation method of the universe age using the nuclear cosmochronology by the heavy chronometers is essentialized.
Ding, HJ (Ding Hua-Jie) +3 more
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238U/235U Systematics in Terrestrial Uranium-Bearing Minerals
, 2017 The present-day 238U/235U ratio has fundamental implications for uranium-lead geochronology and cosmochronology. A value of 137.88 has previously been considered invariant and has been used without uncertainty to calculate terrestrial mineral ages.
Stephen R Noble +3 more
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