549 citations · 2.8k across the 27 of their papers we have counts for
14 papers · 1 filter
Nucleosynthesis in the Early Galaxy
F. Montes, T. C. Beers, J. Cowan +8
Recent observations of r-process-enriched metal-poor star abundances reveal a non-uniform abundance pattern for elements . Based on non-correlation trends between elementa…
Explorations of the r-Processes: Comparisons between Calculations and Observations of Low-Metallicity Stars
Karl-Ludwig Kratz, Khalil Farouqi, Bernd Pfeiffer +3
Abundances of heavier elements (barium and beyond) in many neutron-capture-element-rich halo stars accurately replicate the solar system r-process pattern. However, abundances of l…
Nucleosynthesis in neutrino heated matter: The vp-process and the r-process
G. Martínez-Pinedo, A. Kelic, K. Langanke +11
This manuscript reviews recent progress in our understanding of the nucleosynthesis of medium and heavy elements in supernovae. Recent hydrodynamical models of core-collapse supern…
The Extremely Metal-Poor, Neutron-Capture-Rich Star CS 22892-052: A Comprehensive Abundance Analysis
C. Sneden, J. J. Cowan, J. E. Lawler +9
High-resolution spectra obtained with three ground-based facilities and the Hubble Space Telescope (HST) have been combined to produce a new abundance analysis of CS 22892-052, an…
Stellar Sources of the Interstellar Medium
F. -K. Thielemann, D. Argast, F. Brachwitz +14
With the exception of the Big Bang, responsible for 1,2H, 3,4He, and 7Li, stars act as sources for the composition of the interstellar medium. Cosmic rays are related to the latter…
The Chemical Composition and Age of the Metal-Poor Halo Star BD +17^\circ 3248
John J. Cowan, Christopher Sneden, Scott Burles +8
We have combined new high-resolution spectra obtained with the Hubble Space Telescope (HST) and ground-based facilities to make a comprehensive new abundance analysis of the metal-…
Tuning the Clock: Uranium and Thorium Chronometers Applied to CS 31082-001
R. Toenjes, H. Schatz, K. -L. Kratz +4
We obtain age estimates for the progenitor(s) of the extremely metal-poor ([Fe/H = -2.9) halo star CS 31082-001, based on the recently reported first observation of a Uranium abund…
Element Synthesis in Stars
F. -K. Thielemann, F. Brachwitz, C. Freiburghaus +14
Except for 1H, 2H, 3He, 4He, and 7Li, originating from the Big Bang, all heavier elements are made in stellar evolution and stellar explosions. Nuclear physics, and in many cases n…
Stellar and nuclear-physics constraints on two r-process components in the early Galaxy
B. Pfeiffer, U. Ott, K. -L. Kratz
Proceedings of "Nuclei in the Cosmos 2000", Aarhus, Danmark
On the origin of the Ca-Ti-Cr isotopic anomalies in the inclusion EK-1-4-1 of the Allende Meteorite
K. -L. Kratz, W. Boehmer, C. Freiburghaus +4
In the framework of our investigation to explain the nucleosynthesis origin of the correlated Ca-Ti-Cr isotopic anomalies in the Ca-Al-rich ''FUN'' inclusion EK-1-4-1 of the Allend…
Nuclear Structure Studies at ISOLDE and their Impact on the Astrophysical r-Process
K. -L. Kratz, B. Pfeiffer, F. -K. Thielemann +1
The focus of the present review is the production of the heaviest elements in nature via the r-process. A correct understanding and modeling requires the knowledge of nuclear prope…
R-process abundances and cosmochronometers in old metal-poor halo stars
B. Pfeiffer, K. -L. Kratz, F. -K. Thielemann +5
Proc. IX. Workshop on Nuclear Astrophysics, Ringberg Castle, Tegernsee, Bavaria; March 1998
R-Process Abundances and Chronometers in Metal-Poor Stars
John J. Cowan, B. Pfeiffer, K. -L. Kratz +5
Rapid neutron-capture (i.e., r-process) nucleosynthesis calculations, employing internally consistent and physically realistic nuclear physics input (QRPA beta-decay rates and the…
Nucleosynthesis Basics and Applications to Supernovae
F. -K. Thielemann, T. Rauscher, C. Freiburghaus +4
This review concentrates on nucleosynthesis processes in general and their applications to massive stars and supernovae. A brief initial introduction is given to the physics in ast…