English
Related papers

Related papers: $p$-Process simulations with a modified reaction l…

200 papers

Since April 2005 a regularly updated stellar neutron cross section compilation is available online at http://nuclear-astrophysics.fzk.de/kadonis. This online-database is called the "Karlsruhe Astrophysical Database of Nucleosynthesis in…

Astrophysics · Physics 2008-06-13 I. Dillmann , R. Plag , C. Domingo-Pardo , M. Heil , F. Käppeler , T. Rauscher , F. -K. Thielemann

The astrophysical p process, which is responsible for the origin of the proton rich stable nuclei heavier than iron, was investigated using a full nuclear reaction network for a type II supernova explosion when the shock front passes…

Astrophysics · Physics 2008-11-26 W. Rapp , J. Goerres , M. Wiescher , H. Schatz , F. Kaeppeler

The most detailed calculations of the p-process call for its development in the O/Ne layers of Type II supernovae. In spite of their overall success in reproducing the solar system content of p-nuclides, they suggest a significant…

Astrophysics · Physics 2009-10-31 M. Rayet , V. Costa , M. Arnould

We provide the first experimental cross section of the $^{73}\text{As}(p,\gamma)^{74}\text{Se}$ reaction to constrain one of the main destruction mechanisms of the p nucleus $^{74}\text{Se}$ in explosive stellar environments. The…

The nucleosynthesis of elements beyond iron is dominated by the s and r processes. However, a small amount of stable isotopes on the proton-rich side cannot be made by neutron capture and are thought to be produced by photodisintegration…

Astrophysics · Physics 2011-10-11 I. Dillmann , M. Heil , F. Käppeler , R. Plag , T. Rauscher , F. -K. Thielemann

The KADoNiS (Karlsruhe Astrophysical Database of Nucleosynthesis in Stars) project is an astrophysical online database for cross sections relevant for nucleosynthesis in the $s$ process and the $\gamma$ process. The $s$-process database…

Solar and Stellar Astrophysics · Physics 2014-08-19 Iris Dillmann , Tamas Szücs , Zsolt Fülöp , Ralf Plag , Franz Käppeler , Thomas Rauscher

We present the first calculations to follow the evolution of all stable nuclei and their radioactive progenitors in stellar models computed from the onset of central hydrogen burning through explosion as Type II supernovae. Calculations are…

Astrophysics · Physics 2008-11-26 T. Rauscher , A. Heger , R. D. Hoffman , S. E. Woosley

With analyzing the solar system abundance, we have found two universal scaling laws concerning the p- and s-nuclei. They indicate that the gamma-process in supernova (SN) explosions is the most promising origin of the p-nuclei that has been…

Astrophysics · Physics 2009-11-10 T. Hayakawa , N. Iwamoto , T. Shizuma , T. Kajino , H. Umeda , K. Nomoto

The most detailed calculations of the p-process call for its development in the O/Ne layers of Type II supernovae. In spite of their overall success in reproducing the solar system content of p-nuclides, they suggest a significant…

Astrophysics · Physics 2007-05-23 V. Costa , M. Rayet , R. A. Zappalà , M. Arnould

The "Karlsruhe Astrophysical Database of Nucleosynthesis in Stars" (KADoNiS) project is an online database for experimental cross sections relevant to the s process and p process. It is available under…

Astrophysics · Physics 2008-06-12 I. Dillmann , M. Heil , F. Käppeler , R. Plag , T. Rauscher , F. -K. Thielemann

The location of the (gamma,p)/(gamma,n) and (gamma,alpha)/(gamma,n) line at gamma-process temperatures is discussed, using updated reaction rates based on global Hauser-Feshbach calculations. The results can directly be compared to classic…

Astrophysics · Physics 2007-05-23 T. Rauscher

In order to study the processes creating intermediate and heavy nuclei in massive stars it is necessary to provide neutron capture cross sections and reaction rates close to stability and for moderately unstable neutron-rich nuclei.…

Astrophysics · Physics 2007-05-23 T. Rauscher , A. Heger , S. E. Woosley , R. D. Hoffman

The "Karlsruhe Astrophysical Database of Nucleosynthesis in Stars" (KADoNiS) project is an online database for experimental cross sections relevant to the $s$ process and $p$ process. It is available under…

Astrophysics · Physics 2008-06-13 I. Dillmann , R. Plag , M. Heil , F. Käppeler , T. Rauscher

The theoretical cross section calculations for the astrophysical $p$ process are needed because the most of the related reactions are technically very difficult to be measured in the laboratory. Even if the reaction was measured, most of…

Nuclear Theory · Physics 2017-04-04 C. Yalcin

Using a new s-nucleosynthesis code, coupled with the stellar evolution code Star2003, we performed simulations to study the impact of the convection treatment on the s-process during core He-burning of a 25 Msun star (ZAMS mass) with an…

Astrophysics · Physics 2009-07-13 Vincenzo Costa , Maria Letizia Pumo , Alfio Bonanno , Rosario Aldo Zappala'

The $\gamma$-process nucleosynthesis in core-collapse supernovae is generally accepted as a feasible process for the synthesis of neutron-deficient isotopes beyond iron. However, crucial discrepancies between theory and observations still…

Solar and Stellar Astrophysics · Physics 2023-08-30 L. Roberti , M. Pignatari , A. Psaltis , A. Sieverding , P. Mohr , Zs. Fülöp , M. Lugaro

The $\gamma$-process in core-collapse and/or type Ia supernova explosions is thought to explain the origin of the majority of the so-called $p$ nuclei (the 35 proton-rich isotopes between Se and Hg). Reaction rates for $\gamma$-process…

Nuclear Experiment · Physics 2015-03-09 G. G Kiss , T. Szücs , T. Rauscher , Zs Török , L. Csedreki , Zs Fülöp , Gy Gyürky , Z. Halász

We present the first calculations to follow the evolution of all stable isotopes (and their abundant radioactive progenitors) in a finely zoned stellar model computed from the onset of central hydrogen burning through explosion as a Type II…

Astrophysics · Physics 2007-05-23 A. Heger , R. D. Hoffman , T. Rauscher , S. E. Woosley

The nucleosynthesis of elements beyond iron is dominated by the s and r processes. However, a small amount of stable isotopes on the proton-rich side cannot be made by neutron capture and are thought to be produced by photodisintegration…

Astrophysics · Physics 2009-06-30 I. Dillmann , M. Heil , F. Käppeler , T. Rauscher , F. -K. Thielemann

We investigate p-process nucleosynthesis in a supercritical accretion disk around a compact object of 1.4 M_solar, using the self-similar solution of an optically thick advection dominated flow. Supercritical accretion is expected to occur…

Astrophysics · Physics 2009-11-07 S. Fujimoto , M. Hashimoto , O. Koike , K. Arai , R. Matsuba
‹ Prev 1 2 3 10 Next ›