208 citations · 741 across the 12 of their papers we have counts for
12 papers
Effects of Beta-Decays of Excited-State Nuclei on the Astrophysical r-Process
M. A. Famiano, R. N. Boyd, T. Kajino +3
A rudimentary calculation is employed to evaluate the possible effects of beta- decays of excited-state nuclei on the astrophysical r-process. Single-particle levels calculated wit…
Nucleosynthesis in neutron-rich ejecta from quark-novae
Prashanth Jaikumar, Bradley S. Meyer, Kaori Otsuki +1
We explore heavy-element nucleosynthesis by rapid neutron capture (r-process) in the decompressing ejecta from the surface of a neutron star. The decompression is triggered by a vi…
Analysis of White Dwarfs with Strange-Matter Cores
G. J. Mathews, I. -S. Suh, B. O'Gorman +4
We summarize masses and radii for a number of white dwarfs as deduced from a combination of proper motion studies, Hipparcos parallax distances, effective temperatures, and binary…
Neutron-capture elements in the metal-poor globular cluster M15
Kaori Otsuki, Satoshi Honda, Wako Aoki +2
We report on observations of six giants in the globular cluster M15 (NGC 7078) using the Subaru Telescope to measure neutron-capture elemental abundances. Our abundance analyses ba…
Sensitivity of r-Process Nucleosynthesis to Light-Element Nuclear Reactions
T. Sasaqui, T. Kajino, G. J. Mathews +2
We study the efficiency and sensitivity of r-process nucleosynthesis to 18 light-element nuclear reaction rates. We adopt empirical power-law relations to parameterize the reaction…
r-Process Abundance Universality and Actinide Cosmochronology
Kaori Otsuki, Grant J. Mathews, Toshitaka Kajino
We review recent observational and theoretical results concerning the presence of actinide nuclei on the surfaces of old halo stars and their use as an age determinant. We present…