The A(3)Phi-X-3 Delta system (gamma bands) of TiO: Laboratory and sunspot measurements

R S Ram, P F Bernath, M Dulick, L Wallace

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Abstract

The spectrum of the A(3)Phi-X(3)Delta system of TiO has been measured in the laboratory as well as in sunspots. In the laboratory, the bands were excited in a hollow cathode lamp and were observed using a Fourier transform spectrometer. These bands were also identified in the spectrum of a sunspot umbra recorded with the same spectrometer. Both laboratory and solar measurements have been combined with jet-cooled laser measurements and pure rotational frequencies in the X(3)Delta ground state to obtain improved molecular constants for the A(3)Phi and X(3)Delta states of TiO. RKR potential energy curves and Franck-Condon factors were also calculated.

Original languageEnglish
Pages (from-to)331-353
Number of pages23
JournalASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
Volume122
Issue number1
Publication statusPublished - May 1999

Keywords

  • line identification
  • methods : laboratory
  • molecular data
  • sunspots
  • ROTATIONAL ANALYSIS
  • TITANIUM MONOXIDE
  • SPECTROSCOPY
  • STATES
  • MOLECULES
  • RESOLUTION
  • SPECTRUM

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