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- W2505773759 abstract "The possibility of using the transitions between HFS components of atoms with nonstable nuclei in the spectra of hot gas in the supernova remnants and galaxy clusters for obtaining the information on the age of the objects was mentioned in /l/ without calculations. Here we present the numerical results for some ionized atoms obtained by relastivistic Hartree-Fock-Dirac method. Fermi distribution of nuclear charge density, vacuum polarisation, electron anomalous magnetic moment and reduced mass were taken into account. The HFS energy levels can be written as where A=A’(μ/J). HFS constants A’ in millielectronvolts for H- Li- and Na-like ions of unstable isotops with well known magnetic moments with Z < 53 are given in the table (abundance rapidly decreases with increasing of Z). For the s-electrons, wavelength λ = (hcJ)/(Aμ(J+(1/2))); J is the nuclear spin, hc= 1,23985.10 −4 eV.cm T 1/2 is the halflife." @default.
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- W2505773759 date "1988-01-01" @default.
- W2505773759 modified "2023-10-14" @default.
- W2505773759 title "The Calculations for Determination of the Age of Supernova Remnants and Galaxy Clusters by Measurements of Hyperfine Splitting in Highly ionized Atoms with Unstable Nuclei" @default.
- W2505773759 doi "https://doi.org/10.1017/s0252921100107584" @default.
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