Isotope shift and search for metastable superheavy elements in astrophysical data

Abstract

Spectral lines belonging to the short-lifetime heavy radioactive elements up to Es ($Z$=99) have been found in the spectra of the Przybylski's star. We suggest that these unstable elements may be decay products of a "magic" metastable nucleus belonging to the the island of stability where the nuclei have a magic number of neutrons $N=184$. The laboratory-produced nuclei have a significantly smaller number of neutrons. To identify spectra of the $N=184$ isotopes of these nuclei and their neutron-reach superheavy decay products in astrophysical data we calculate the isotope shift which should be added to the laboratory - measured wavelenghs. The results for the isotopic shifts in the strongest optical electromagnetic transitions in No, Lr, Nh, Fl,and $Z$=120 elements are presented.

4 pages, no figures

References in corpus (4)

• Atomic properties of superheavy elements No, Lr, and Rf
• Spectra of barium, radium, and element 120; application of the combined correlation potential, singles-doubles, and configuration interaction ab initio method
• Compilation of spectroscopic data of Radium (Ra I and Ra II)
• All-order calculations of the spectra of superheavy elements E113 and E114

Cited by in corpus (16)

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