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Lego Figure holding a lego telescope. Photo

Henrik Hartman

Researcher (Leave of Absence)

Lego Figure holding a lego telescope. Photo

Lifetime measurements and calculations in Y+ and Y2+ ions

Author

  • E. Biemont
  • K. Blagoev
  • Lars Engström
  • Henrik Hartman
  • Hans Lundberg
  • G. Malcheva
  • Hampus Nilsson
  • Richard Blackwell-Whitehead
  • P. Palmeri
  • P. Quinet

Summary, in English

We report a new set oftheoretical transition probabilities in Y II, obtained using a multiconfiguration relativistic Hartree-Fock method including core polarization. The overall quality of the calculations is assessed by comparisons with new and previous lifetime measurements. In this paper, we report new measurements of five lifetimes in the 4d5p and 5s5p configurations, in the energy range of 32 048-44 569 cm(-1), obtained by the time-resolved laser-induced fluorescence method. A similar theoretical model, applied to Y III, leads to results in good agreement with new laser measurements of two 5p levels obtained in this work and with previous beam-foil results for 5d and 6s levels. An extensive set of oscillator strengths is also proposed for Y III.

Department/s

  • Atomic Physics
  • Lund Observatory - Undergoing reorganization

Publishing year

2011

Language

English

Pages

3350-3359

Publication/Series

Monthly Notices of the Royal Astronomical Society

Volume

414

Issue

4

Document type

Journal article

Publisher

Oxford University Press

Topic

  • Atom and Molecular Physics and Optics
  • Astronomy, Astrophysics and Cosmology

Keywords

  • atomic data
  • atomic processes

Status

Published

ISBN/ISSN/Other

  • ISSN: 1365-2966