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Clayton, Donald D.

Works: 29 works in 108 publications in 3 languages and 2,302 library holdings
Genres: Biography  History  Maps 
Roles: Author
Classifications: QB464, 523.8
Publication Timeline
Publications about Donald D Clayton
Publications by Donald D Clayton
Most widely held works about Donald D Clayton
Most widely held works by Donald D Clayton
Principles of stellar evolution and nucleosynthesis by Donald D Clayton( Book )
49 editions published between 1968 and 2007 in English and Italian and held by 895 libraries worldwide
The fields of stellar evolution and nucleosynthesis comprise one of the most vital and intriguing areas of modern sceintific research. The recent build-up in the space exploration program has been accompanied by a new surge of interest in the physics of natural phenomena. Since stars are the most common element in the universe, much of our knowledge is moderated by our concepts of their structure and evolution, and the synthesis of elements from which they are formed. This is the first text to present the basic physical principles of stellar evolution and nucleosynthesis. The book provides a clear statement of the ideas which dominate modern research in the hope that it will attract more students into this exciting field. By concentrating on the physical principles, the author has attempted to clarify the theoretical ideas which will prove valuable in a wide variety of future problems. (Author)
The dark night sky : a personal adventure in cosmology by Donald D Clayton( Book )
6 editions published in 1975 in English and Undetermined and held by 601 libraries worldwide
Essays in nuclear astrophysics : presented to William A. Fowler, on the occasion of his seventieth birthday ( Book )
8 editions published between 1981 and 1982 in English and Undetermined and held by 294 libraries worldwide
Handbook of isotopes in the cosmos : hydrogen to gallium by Donald D Clayton( Book )
8 editions published in 2003 in English and held by 255 libraries worldwide
Each naturally occurring isotope has a tale to tell about the history of matter, and each has its own special place in cosmic evolution. This volume aims to grasp the origins of our material world by looking at the abundance of the elements and their isotopes, and how this is interpreted within the theory of nucleosynthesis. Each isotope of elements from Hydrogen to Gallium is covered in detail. For each, there is an historical and chemical introduction, and a table of those isotopes that are abundant in the natural world. Information given on each isotope includes its nuclear properties, solar system abundance, nucleosynthesis in stars, astronomical observations, and isotopic anomalies in premolar grains and solar-system solids. The book is suitable for astronomers, physicists, chemists, geologists and planetary scientists, and contains a glossary of essential technical terms
The Joshua factor : a novel by Donald D Clayton( Book )
5 editions published between 1986 and 1988 in English and held by 161 libraries worldwide
The explosive burning of oxygen and silicon by Stanford E Woosley( Book )
2 editions published in 1973 in English and held by 23 libraries worldwide
26Al in the interstellar medium by Donald D Clayton( Book )
4 editions published in 1987 in English and held by 9 libraries worldwide
Nucleosynthesis of heavy elements by neutron capture by Philip A Seeger( Book )
4 editions published between 1964 and 1965 in English and held by 6 libraries worldwide
Nucleosynthesis of elements heavier than the iron group by neutron capture on both slow and fast time scales is evaluated. The s-process calculations of Clayton, Fowler, Hull, and Zimmerman (Ann. Phys. 12:331, 1961) were revised to include more recent experimental results on abundances and neutron capture cross-sections. The solar-system s-process abundances indicate a history of neutron exposure distributions characterized by decreasing probability of high integrated flux; an exponential exposure distribution is extracted. Estimates are made of the s-process contribution to each isotopic abundance; a table gives the amounts of elements produced by each process in the solar-system material. The r-process calculations are carried out using a semi-empirical atomic-mass law to determine neutron-binding energies and beta-decay probabilities. The solar-system r-process material has probably been synthesized in two distinct types of environments. (Author)
Nuclear quasi-equilibrium during silicon burning by David Bodansky( Book )
2 editions published in 1968 in Undetermined and English and held by 4 libraries worldwide
Prospects for nuclear gamma-ray astronomy by Donald D Clayton( Book )
1 edition published in 1973 in English and held by 2 libraries worldwide
A walking tour of residential Seneca by Donald D Clayton( Book )
1 edition published in 2001 in English and held by 2 libraries worldwide
Studies of certain nuclear processes in stars. I. Neutron capture chains in heavy element synthesis. II. A search for excited states in N^(14) pertaining to the synthesis of C^(13) by Donald D Clayton( file )
1 edition published in 1962 in Undetermined and held by 1 library worldwide
Part I. A. An analysis of the abundance distributions resulting from a chain of successive neutron captures is presented in considerable generality. The solutions are applied to the stellar problem of neutron capture at a rate slow compared to beta-decay, the so-called s-process. Theoretically al abundance distributions are correlated with present knowledge of element and isotope abundances in order to draw inferences about the "history” of stellar neutron capture. A semiempirical analysis of isotopic neutron capture cross sections is appended. This work was carried out in conjunction with W. A. Fowler, T. E. Hull, and B. A. Zimmerman. The presentation is in the form of a reprint of an article from the Annals of Physics by the same authors. B. The studies described in Section A have been independently extended in this thesis. A theoretical table of solar abundances is presented for the stable heavy nuclei whose formation is attributable to the operation of the r- and s-processes. The importance of the normalization of these two theories to certain key abundance determinations is emphasized. The table facilitates a comparison of these theories of nucleosynthesis with current observations on the abundances of the elements and their isotopes. Part II. Experimental nuclear studies relevant to astrophysical situations constitute the second part of this thesis research. Alpha particle groups from the reactions N^(15) (He^3, α) N^(14) and N^(14) (He^3, α) N^(13) leading to states in the 7-8 Mev excitation range of the two nitrogen isotopes are reported. States were observed in N^(14) at excitations of 8.06, 7.97, and 7.034 ± .008 Mev and in N^(13) at excitations of 7.388 ± .008 and 7.166 ± .008 Mev. Differential cross sections are evaluated for these reactions at laboratory angles of 90° and 150° and a bombarding energy of 2.76 Mev. No other states in this range of excitation were observed. In particular, a state does not appear near 7.6 Mev excitation in N^(14), indicatin
Energy levels of N14 from N15(He3,α)N14 by Donald D Clayton( file )
1 edition published in 1962 in Undetermined and held by 1 library worldwide
The energy level scheme of N14 in the 4-8 MeV range of excitation has been examined by measuring the alpha-particle spectrum from the reaction N15(He3, α)N14*. States are observed at N14 excitations of 3.95, 4.91, 5.113±0.008, 5.691±0.008, 5.832±0.008, 6.048±0.012, 6.224±0.012, 6.436±0.012, 7.032±0.010, 7.97, and 8.06 MeV. Unobserved are the now doubtful states reported near 6.70, 7.40, and 7.60 MeV in N14. The implications of a possible state near 7.60 on the C12/C13 abundance ratio are discussed and it is concluded that observed isotope abundance ratios are consistent with the finding of this experiment; that is, that such a level does not exist. Angular distributions are presented which show the evidence of different reaction mechanisms to different final states. The reaction N14(He3, α)N13* also produced resolvable alpha-particle groups to states in N13 with excitations of 6.38, 6.91, 7.1 6±0.008, and 7.388±0.008 MeV
26Al in the interstellar region by Donald D Clayton( Article )
1 edition published in 1987 in English and held by 1 library worldwide
Fred Hoyle, 1915-2001 by Donald D Clayton( Book )
1 edition published in 2001 in English and held by 1 library worldwide
Theoretical Nuclear Astrophysics ( Book )
1 edition published in 1970 in English and held by 1 library worldwide
The great preponderance of this research has been directed toward the many ramifications of a single problem -- to evaluate the nuclear data for and against the proposition that the chemical elements have been created by nuclear reactions in stars. Results are discussed
Âdernaâ astrofizika ( Book )
1 edition published in 1986 in Russian and held by 1 library worldwide
OSSE Observations of 57Co In SN1987A ( file )
1 edition published in 1992 in English and held by 0 libraries worldwide
The Oriented Scintillation Spectrometer Experiment (OSSE) on the COMPTON Gamma Ray Observatory has observed SN1987A for two 2-week periods during the first nine months of the mission. Evidence for gamma-ray line and continuum emission from 57Co is observed with an intensity of about 10(exp-4) gamma-/sq cm s(exp -1). This photon flux between 50 and 136 keV is demonstrated by Monte Carlo calculations to be independent of the radial distribution of the 57Co for models of low optical depth; viz., models having photoelectric absorption losses of 122 keV photons no greater than several percent. For such models the observed 57Co flux indicates that the ratio of 57Ni/56Ni produced in the explosion was about 1.5 times the solar system ratio of 57Fe/56Fe. When compared with nearly contemporaneous bolometric estimates of the luminosity for SN1987A, our observations imply that 57Co radioactivity does not account for most of the current luminosity of the supernova remnant in low-optical-depth models. We suggest alternatives including a large-optical-depth model that is able to provide the SN1987A luminosity and is consistent with the OSSE flux. It requires a 57/56 production ratio of about twice solar
Compton Observatory OSSE Studies of Supernovae and Novae ( file )
1 edition published in 1995 in English and held by 0 libraries worldwide
A primary objective of the Compton Observatory is the direct study of explosive nucleosynthesis in supernovae and classical novae. We have been fortunate in that three rare events have coincided, relatively speaking, with the Compton Observatory launch. Supernova 1987A, roughly a once per century event, was only 4 years old at launch and so the gamma-ray flux from 57Co decay was not much past its peak value. Supernova 1991T, a SN Ia which exploded within a few days of launch, is a once in a decade event. It offers as good a chance as we could reasonably expect to detect the 56Ni and 56Co decays which are supposed to be responsible for the impressive SN Ia display. Nova Cygni 1992, also a once in a decade event, might be our best chance to detect gamma-rays from 22Na, a unique nucleosynthesis byproduct of the explosive hydrogen burning thought to power classical novae
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Alternative Names
Clayton, D. D.
Clayton, D. D. (Donald D.)
Klejton, D.
Klejton, D. 1935-
English (97)
Russian (1)
Italian (1)
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