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pro vyhledávání: '"Arcones A"'
The use of computer simulations to model physical systems has gained significant traction in recent years. A key factor in ensuring the accuracy of these models is the proper calibration of model parameters based on real-world observations or experim
Externí odkaz:
http://arxiv.org/abs/2410.12037
Autor:
Jost, Finia P., Molero, Marta, Navó, Gerard, Arcones, Almudena, Obergaulinger, Martin, Matteucci, Francesca
We provide yields from 189 neutrino-driven core-collapse supernova (CCSN) simulations covering zero-age main sequence masses between 11 and 75 solar masses and three different metallicities. Our CCSN simulations have two main advantages compared to p
Externí odkaz:
http://arxiv.org/abs/2407.14319
Material expelled from binary neutron star (BNS) mergers can harbor r-process nucleosynthesis and power a Kilonova (KN), both intimately related to the astrophysical conditions of the ejection. In turn such conditions indirectly depend on the equatio
Externí odkaz:
http://arxiv.org/abs/2406.03649
Autor:
Psaltis Athanasios, Arcones Almudena, Avila Melina L., Jacobi Maximilian, Hansen Camilla Juul, Lombardo Linda, Meisel Zach, Mohr Peter, Montes Fernando, Ong Wei Jia, Schatz Hendrik
Publikováno v:
EPJ Web of Conferences, Vol 279, p 08002 (2023)
The lighter heavy elements of the first r-process peak, between strontium and silver, can be synthesized in the moderately neutron-rich neutrino–driven ejecta of either core–collapse supernovae or neutron star mergers via the weak r–process. Th
Externí odkaz:
https://doaj.org/article/d6f978bb6f354d339aff04d73a9f3bd6
Autor:
García-Senz, Domingo, Cabezón, Rubén M., Reichert, Moritz, Lechuga, Axel S., Escartín, José A., Psaltis, Athanasios, Arcones, Almudena, Thielemann, Friedrich-Karl
Publikováno v:
A&A 688, A218 (2024)
We present here an extended nuclear network, with 90 species, designed for being coupled with hydrodynamic simulations, which includes neutrons, protons, electrons, positrons, and the corresponding neutrino and anti-neutrino emission. This network is
Externí odkaz:
http://arxiv.org/abs/2403.03743
Autor:
Psaltis Athanasios, Arcones Almudena, Avila Melina L., Jacobi Maximillian, Meisel Zach, Mohr Peter, Montes Fernando, Ong Wei Jia
Publikováno v:
EPJ Web of Conferences, Vol 260, p 07003 (2022)
“Light” heavy elements (Z = 38 − 47) can be synthesized in the neutrino–driven ejecta of core–collapse supernovae via the weak r–process. This nucleosynthesis scenario exhibits uncertainties from the absence of experimental data from (α,
Externí odkaz:
https://doaj.org/article/fb7712bbdc2b4ac9a514b6ec6f14584b
The production of heavy elements is one of the main by-products of the explosive end of massive stars. A long sought goal is finding differentiated patterns in the nucleosynthesis yields, which could permit identifying a number of properties of the e
Externí odkaz:
http://arxiv.org/abs/2401.14402
The elemental abundances between strontium and silver ($Z = 38-47$) observed in the atmospheres of very metal-poor stars (VMP) in the Galaxy may contain the fingerprint of the weak $r$-process and $\nu p$-process occurring in early core-collapse supe
Externí odkaz:
http://arxiv.org/abs/2312.12306
Simulation-based digital twins must provide accurate, robust and reliable digital representations of their physical counterparts. Quantifying the uncertainty in their predictions plays, therefore, a key role in making better-informed decisions that i
Externí odkaz:
http://arxiv.org/abs/2312.00664
Autor:
Jacobi, Maximilian, Guercilena, Federico Maria, Huth, Sabrina, Ricigliano, Giacomo, Arcones, Almudena, Schwenk, Achim
Publikováno v:
MNRAS, 527, 8812 (2023)
The dynamics in mergers of binary neutron star (BNS) systems depend sensitively on the equation of state (EOS) of dense matter. This has profound implications on the emission of gravitational waves (GWs) and the ejection of matter in the merger and p
Externí odkaz:
http://arxiv.org/abs/2309.09233