Zobrazeno 1 - 10
of 132
pro vyhledávání: '"Rebecca Surman"'
Publikováno v:
Physics Letters B, Vol 858, Iss , Pp 139028- (2024)
Two heavy elements essential to human biology are thought to have been produced by the astrophysical r-process, which occurs in neutron-rich environments: iodine is a constituent of thyroid hormones that affect many physiological processes including
Externí odkaz:
https://doaj.org/article/b07d42997bba46b8b5ef46275d25181b
Autor:
Matthew R. Mumpower, Trevor M. Sprouse, Jonah M. Miller, Kelsey A. Lund, Jonathan Cabrera Garcia, Nicole Vassh, Gail C. McLaughlin, Rebecca Surman
Publikováno v:
The Astrophysical Journal, Vol 970, Iss 2, p 173 (2024)
The simulation of heavy element nucleosynthesis requires input from yet-to-be-measured nuclear properties. The uncertainty in the values of these off-stability nuclear properties propagates to uncertainties in the predictions of elemental and isotopi
Externí odkaz:
https://doaj.org/article/ad94ab32915c4c98b5a53518f07ab313
Publikováno v:
The Astrophysical Journal, Vol 967, Iss 2, p 146 (2024)
In high-energy astrophysical processes involving compact objects, such as core-collapse supernovae or binary neutron star mergers, neutrinos play an important role in the synthesis of nuclides. Neutrinos in these environments can experience collectiv
Externí odkaz:
https://doaj.org/article/ca063def76b644bb87859cbee9106712
Autor:
Haille M. L. Perkins, John Ellis, Brian D. Fields, Dieter H. Hartmann, Zhenghai Liu, Gail C. McLaughlin, Rebecca Surman, Xilu Wang
Publikováno v:
The Astrophysical Journal, Vol 961, Iss 2, p 170 (2024)
Binary neutron star mergers produce high-energy emissions from several physically different sources, including a gamma-ray burst (GRB) and its afterglow, a kilonova (KN), and, at late times, a remnant many parsecs in size. Ionizing radiation from the
Externí odkaz:
https://doaj.org/article/352c59a007524cbe816e72d17e45b1e3
Publikováno v:
Frontiers in Physics, Vol 10 (2022)
In recent work, we developed a Markov Chain Monte Carlo (MCMC) procedure to predict the ground state masses capable of forming the observed Solar r-process rare-earth abundance peak. By applying this method to nucleosynthesis calculations which make
Externí odkaz:
https://doaj.org/article/958ad62fca9f42ed903d132a8893b96e
Publikováno v:
The Astrophysical Journal, Vol 951, Iss 1, p 30 (2023)
With the most trans-iron elements detected of any star outside the solar system, HD 222925 represents the most complete chemical inventory among metal-poor stars enhanced with elements made by the rapid neutron capture (“ r ”) process. As such, H
Externí odkaz:
https://doaj.org/article/f0963bcfdb924bbd90a0e30658c27d61
Autor:
Shivani P. Shah, Rana Ezzeddine, Alexander P. Ji, Terese T. Hansen, Ian U. Roederer, Márcio Catelan, Zoe Hackshaw, Erika M. Holmbeck, Timothy C. Beers, Rebecca Surman
Publikováno v:
The Astrophysical Journal, Vol 948, Iss 2, p 122 (2023)
The ages of the oldest stars shed light on the birth, chemical enrichment, and chemical evolution of the universe. Nucleocosmochronometry provides an avenue to determining the ages of these stars independent from stellar-evolution models. The uranium
Externí odkaz:
https://doaj.org/article/0e708594300249cc9be7ce7ac82f3c27
Autor:
Xilu Wang, Adam M. Clark, John Ellis, Adrienne F. Ertel, Brian D. Fields, Brian J. Fry, Zhenghai Liu, Jesse A. Miller, Rebecca Surman
Publikováno v:
The Astrophysical Journal, Vol 948, Iss 2, p 113 (2023)
^244 Pu has recently been discovered in deep-sea deposits spanning the past 10 Myr, a period that includes two ^60 Fe pulses from nearby supernovae. ^244 Pu is among the heaviest r -process products, and we consider whether it was created in supernov
Externí odkaz:
https://doaj.org/article/91286e2efdc84ea090aef69f057a0e66
Autor:
Shivani P. Shah, Rana Ezzeddine, Alexander P. Ji, Terese T. Hansen, Ian U. Roederer, Márcio Catelan, Zoe Hackshaw, Erika M. Holmbeck, Timothy C. Beers, Rebecca Surman
The ages of the oldest stars shed light on the birth, chemical enrichment, and chemical evolution of the Universe. Nucleocosmochronometry provides an avenue to determining the ages of these stars independent from stellar evolution models. The uranium
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a587f6e0b5e58b21b40ef363522ecf03
Autor:
Xilu Wang, Rebecca Surman
Publikováno v:
Handbook of Nuclear Physics ISBN: 9789811588181
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a7d9ed53863c8c0a2f6e15264dac528
https://doi.org/10.1007/978-981-15-8818-1_128-1
https://doi.org/10.1007/978-981-15-8818-1_128-1