Open Access
Atomic Data and Nuclear Data Tables
P. Bogdanovich,R. Kisielius +1 more
TLDR
In this paper, the ab initio quasirelativistic Hartree-Fock method developed specifically for the calculation of spectral parameters of heavy atoms and highly charged ions is used to derive transition data for a multicharged tungsten ion.Abstract:
a b s t r a c t The ab initio quasirelativistic Hartree–Fock method developed specifically for the calculation of spectral parameters of heavy atoms and highly charged ions is used to derive transition data for a multicharged tungsten ion. The configuration interaction method is applied to include electron correlation effects. The relativistic effects are taken into account in the Breit–Pauli approximation for quasirelativistic Hartree–Fock radial orbitals. The energy level spectra, radiative lifetimes and Lande gfactors are calculated for the 4p 6 4d 2 , 4p 6 4d4f, and 4p 5 4d 3 configurations of the ion W 36+ . The transition wavelengths, spontaneous transition probabilities, oscillator strengths, and line strengths for the electric dipole, electric quadrupole, electric octupole, and magnetic dipole transitions among the levels of these configurations are tabulated.read more
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Storage ring mass spectrometry for nuclear structure and astrophysics research
TL;DR: In the last two and a half decades ion storage rings have proven to be powerful tools for precision experiments with unstable nuclides in the realm of nuclear structure and astrophysics as discussed by the authors.
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SNe Ia from double detonations: Impact of core-shell mixing on the carbon ignition mechanism
Sabrina Gronow,Christine E. Collins,Sebastian T. Ohlmann,Ruediger Pakmor,Markus Kromer,Ivo R. Seitenzahl,Stuart A. Sim,Friedrich K. Roepke +7 more
TL;DR: In this article, a carbon-oxygen core with a helium shell was set up in one dimension and mapped to three dimensions to simulate the influence of core-shell mixing on the carbon ignition mechanism, and its detonation was followed with an increased resolution compared to the rest of the star treating the propagation of the detonation wave more accurately.
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Californium-254 and kilonova light curves
Yonglin Zhu,Ryan Wollaeger,Nicole Vassh,Rebecca Surman,Rebecca Surman,Trevor M. Sprouse,Matthew Mumpower,Matthew Mumpower,Peter Möller,Peter Möller,Gail C. McLaughlin,Gail C. McLaughlin,Oleg Korobkin,Oleg Korobkin,Toshihiko Kawano,P. Jaffke,Erika M. Holmbeck,Erika M. Holmbeck,Chris L. Fryer,Chris L. Fryer,Wesley Even,Wesley Even,Wesley Even,Aaron Couture,Aaron Couture,Jennifer Barnes +25 more
TL;DR: In this article, the authors performed dynamical nucleosynthesis calculations and identified a single isotope, $^{254}$Cf, which has a particularly high impact on the brightness of electromagnetic transients associated with mergers on the order of 15 to 250 days.
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Validity of the Generalized Brink-Axel Hypothesis in (238)Np.
Magne Guttormsen,Ann-Cecilie Larsen,Andreas Görgen,Therese Renstrøm,Sunniva Siem,Tamas Gabor Tornyi,Gry Merete Tveten +6 more
TL;DR: The generalized Brink-Axel hypothesis is experimentally verified for γ transitions between states in the quasicontinuum region, not only for specific collective resonances, but also for the full strength below the neutron separation energy.
Journal ArticleDOI
Relic antineutrino capture on 163Ho decaying nuclei
M. Lusignoli,M. Vignati +1 more
TL;DR: The electron capture decay of the isotope 163Ho has been proposed since a long time as a candidate for measuring the electron neutrino mass and recently the interest on this idea has been renewed as mentioned in this paper.
References
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TL;DR: In this article, the Slater-Condon theory of atomic structure and spectra is combined with a coherent set of closed-form equations suitable both for computer calculations on cases of arbitrary complexity and for hand calculations for very simple cases.
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Theoretical energy level spectra and transition data for 4p64d2, 4p64d4f, and 4p54d3 configurations of W36+
P. Bogdanovich,R. Kisielius +1 more