Properties and Composition of Magnetized Nuclei

Abstract

The properties and mass distribution of the ultramagnetized atomic nuclei which arise in heavy-ion collisions and magnetar crusts, during Type II supernova explosions and neutron star mergers are analyzed. For the magnetic field strength range of 0.1–10 teratesla, the Zeeman effect leads to a linear nuclear magnetic response that can be described in terms of magnetic susceptibility. Binding energies increase for open shell and decrease for closed shell nuclei. A noticeable enhancement in theyield of corresponding explosive nucleosynthesis products with antimagic numbers is predicted for iron group and r-process nuclei. Magnetic enrichment in a sampleof 44Ti corroborate theobservational results and imply a significant increase in the quantity of the main titanium isotope, 48Ti, in the chemical composition of galaxies. The enhancement of small mass number nuclides in the r-process peak may be due to magnetic effects.

Finite-temperature equations of state of compact stars with hyperons: three-dimensional tables

“…Note that in the case when strong electromagnetic fields are present (1) should include the electromagnetic contribution L em which we neglect here. Examples, where such term is important are the cores of magnetars that may support magnetic fields of the order of 10 18 G [ [45][46][47]as well as magnetar crusts where the physics of finite nuclei may be affected by magnetic fields [48][49][50][51]. Electromagnetic part of the Largangian contributes also to the Coulomb corrections in inhomogeneous matter, see e.g.…”

Effect of Protoneutron Star Magnetized Envelops in Neutrino Energy Spectra

“…Since neutrinos or magnetic pressure are capable of making a significant contribution to the mechanism of supernova explosions, an analysis of neutrino transport in supernova matter, taking into account magnetic effects, represents an important issue. In addition, the possible magnetic influence on neutrino spectra are crucial for the interpretation of the r-and neutrino processes that can be also affected by magnetic fields [6][7][8][9]. As has been recently shown [10,11], the energy exchange in neutrino-nuclear scattering can be noticeably enhanced due to the magnetic field.…”