R
R. D. Hoffman
Researcher at Lawrence Livermore National Laboratory
Publications - 19
Citations - 1905
R. D. Hoffman is an academic researcher from Lawrence Livermore National Laboratory. The author has contributed to research in topics: Nucleosynthesis & Supernova. The author has an hindex of 9, co-authored 19 publications receiving 1678 citations. Previous affiliations of R. D. Hoffman include University of California, Santa Cruz.
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Journal ArticleDOI
The jina reaclib database: its recent updates and impact on type-i x-ray bursts
Richard H. Cyburt,Richard H. Cyburt,A. Matthew Amthor,Ryan Ferguson,Zach Meisel,Karl Smith,Scott Warren,Alexander Heger,Alexander Heger,R. D. Hoffman,Thomas Rauscher,Alexander Sakharuk,Hendrik Schatz,Hendrik Schatz,Friedrich-Karl Thielemann,Michael Wiescher,Michael Wiescher +16 more
TL;DR: The JINA REACLIB project as mentioned in this paper maintains a library of thermonuclear reaction rates for astrophysical applications, which are transparently documented and version tracked, and any set of rates is publicly available and can be downloaded via a web interface at http://groups.nscl.msu.edu/jina/reaclib/db/.
Journal ArticleDOI
Models for type I X-ray bursts with improved nuclear physics
Stanford E Woosley,Alexander Heger,Andrew Cumming,R. D. Hoffman,J. Pruet,Thomas Rauscher,J. L. Fisker,Hendrik Schatz,B. A. Brown,Michael Wiescher +9 more
TL;DR: In this paper, the authors present multizone models of Type I X-ray bursts that use an adaptive nuclear reaction network of unprecedented size, up to 1300 isotopes, for energy generation and include the most recent measurements and estimates of critical nuclear physics.
Journal ArticleDOI
Models for Type I X-Ray Bursts with Improved Nuclear Physics
Stanford E Woosley,Alexander Heger,Andrew Cumming,R. D. Hoffman,J. Pruet,Thomas Rauscher,Hendrik Schatz,B. A. Brown,Michael Wiescher +8 more
TL;DR: In this paper, multi-zone models of Type I X-ray bursts are presented that use an adaptive nuclear reaction network of unprecedented size, up to 1300 isotopes, and sequences of up to 15 bursts are followed for two choices of accretion rate and metallicity.
Journal ArticleDOI
The Production of 44Ti and 60Co in Supernovae
TL;DR: In this article, the production of the radioactive isotopes {sup 44}Ti and {sup 60}Co in all types of supernovae is examined and compared to observational constraints including Galactic {gamma}-ray surveys, measurements of the diffuse 511 keV radiation, the late-time light curve of SN 1987A, and isotopic anomalies found in silicon carbide grains in meteorites.
Journal ArticleDOI
26Al and 60Fe from Supernova Explosions
Francis Timmes,Stanford E Woosley,Stanford E Woosley,Dieter H. Hartmann,R. D. Hoffman,Thomas A. Weaver,Francesca Matteucci +6 more
TL;DR: In this paper, the current abundances and spatial distributions of two key gamma-ray radioactivities, {sup 26}Al and {sup 60}Fe, are determined using recently calculated yields for Type II supernovae, along with models for chemical evolution and distribution of mass in the interstellar medium.