English
Related papers

Related papers: The r-process nucleosynthesis: a continued challen…

200 papers

The r-process constitutes one of the major challenges in nuclear astrophysics. Its astrophysical site has not yet been identified but there is observational evidence suggesting that at least two possible sites should contribute to the solar…

In rapid neutron capture, or r-process, nucleosynthesis, heavy elements are built up via a sequence of neutron captures and beta decays that involves thousands of nuclei far from stability. Though we understand the basics of how the…

Nuclear Theory · Physics 2015-06-17 R. Surman , M. Mumpower , J. Cass , I. Bentley , A. Aprahamian , G. C. McLaughlin

The astrophysical rapid neutron capture process or `$r$ process' of nucleosynthesis is believed to be responsible for the production of approximately half the heavy element abundances found in nature. This multifaceted problem remains one…

Nuclear Theory · Physics 2016-01-20 M. R. Mumpower , R. Surman , G. C. McLaughlin , A. Aprahamian

The r-process, or the rapid neutron-capture process, of stellar nucleosynthesis is called for to explain the production of the stable (and some long-lived radioactive) neutron-rich nuclides heavier than iron that are observed in stars of…

Astrophysics · Physics 2008-11-26 M. Arnould , S. Goriely , K. Takahashi

The rapid neutron-capture process, or r-process, is known to be fundamental for explaining the origin of approximately half of the A>60 stable nuclei observed in nature. In recent years nuclear astrophysicists have developed more and more…

Solar and Stellar Astrophysics · Physics 2015-05-28 S. Goriely , N. Chamel , H. -T. Janka , J. M. Pearson

Simulations of r-process nucleosynthesis require nuclear physics information for thousands of neutron-rich nuclear species from the line of stability to the neutron drip line. While arguably the most important pieces of nuclear data for the…

Nuclear Theory · Physics 2017-08-23 R. Surman , M. Mumpower , G. C. McLaughlin , R. Sinclair , W. R. Hix , K. L. Jones

The r-process involves neutron-rich nuclei far off stability for which no experimental cross sections are known. Therefore, one has to rely on theory which might be prone to considerable uncertainties far off stability. To investigate the…

Astrophysics · Physics 2007-05-23 T. Rauscher

About half of the heavy elements in the Solar System were created by rapid neutron capture, or r-process, nucleosynthesis. In the r-process, heavy elements are built up via a sequence of neutron captures and beta decays in which an intense…

Nuclear Theory · Physics 2017-08-23 R. Surman , M. Mumpower , J. Cass , A. Aprahamian

The rapid neutron capture process (r process) is believed to be responsible for about half of the production of the elements heavier than iron and contributes to abundances of some lighter nuclides as well. A universal pattern of r-process…

High Energy Astrophysical Phenomena · Physics 2019-06-26 T. Kajino , W. Aoki , A. B. Balantekin , R. Diehl , M. A. Famiano , G. J. Mathews

Although the rapid neutron-capture process, or r-process, is fundamentally important for explaining the origin of approximately half of the stable nuclei with A > 60, the astrophysical site of this process has not been identified yet. Here…

Solar and Stellar Astrophysics · Physics 2015-05-28 Stephane Goriely , Andreas Bauswein , H. -Thomas Janka

About half of the elements beyond iron are synthesized in stars by rapid-neutron capture process (r-process). The stellar environment provides very high neutron flux in a short time ($\sim$ seconds) which is conducive for the creation of…

Nuclear Theory · Physics 2023-06-05 Vinay Singh , Joydev Lahiri , Malay Kanti Dey , D. N. Basu

A long-standing scientific puzzle has been to explain the origin of the heaviest elements in the Universe and, more particularly, the production of the elements heavier than iron up to uranium. The rapid neutron capture process (or…

High Energy Astrophysical Phenomena · Physics 2023-03-14 Ina K. B. Kullmann

The production of about half of the heavy elements found in nature is assigned to a specific astrophysical nucleosynthesis process: the rapid neutron capture process (r-process). Although this idea has been postulated more than six decades…

The rapid neutron-capture process ($r$-process) has for the first time been confirmed to take place in a neutron-star merger event. A detailed understanding of the rapid neutron-capture process is one of the holy grails in nuclear…

Nuclear Theory · Physics 2018-01-24 I. K. B. Kullmann , E. W. Hafli , A. C. Larsen , E. Lima

I discuss the recent progress in our understanding of nucleosynthesis via rapid neutron capture, the r-process, based on meteoritic data for the early solar system and observations of stars at low metallicities. At present, all data require…

Astrophysics · Physics 2009-10-31 Yong-Zhong Qian

The rapid neutron capture process (r-process) is thought to be responsible for the creation of more than half of all elements beyond iron. The scientific challenges to understanding the origin of the heavy elements beyond iron lie in both…

Nuclear Theory · Physics 2015-06-12 S. Brett , I. Bentley , N. Paul , R. Surman , A. Aprahamian

Current models for the $r$ process are summarized with an emphasis on the key constraints from both nuclear physics measurements and astronomical observations. In particular, we analyze the importance of nuclear physics input such as…

Nuclear Theory · Physics 2017-05-31 Toshitaka Kajino , Grant J. Mathews

We present a new nucleosynthesis process that may take place on neutron-rich ejecta experiencing an intensive neutrino flux. The nucleosynthesis proceeds similarly to the standard $r$-process, a sequence of neutron-captures and beta-decays,…

High Energy Astrophysical Phenomena · Physics 2024-05-14 Zewei Xiong , Gabriel Martínez-Pinedo , Oliver Just , Andre Sieverding

The r-process involves neutron-rich nuclei far off stability for which no experimental cross sections are known. Therefore, one has to rely on theory. The difficulties in the predictions are briefly addressed. To investigate the impact of…

Astrophysics · Physics 2015-06-24 T. Rauscher

This manuscript reviews recent progress in our understanding of the nucleosynthesis of medium and heavy elements in supernovae. Recent hydrodynamical models of core-collapse supernovae show that a large amount of proton rich matter is…

‹ Prev 1 2 3 10 Next ›